VXA-320 (VXA-3) TAPE DRIVE
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The Tandberg VXA-320 (VXA-3) tape drive is warranted to be free from defects in
materials, parts, and workmanship, and conforms to the current product specification.
For the specific details of your warranty, refer to your sales contract or contact the
company from which you purchased the tape drive.
PRODUCT
WARRANTY
CAUTION
The warranty for the tape drive shall not apply to failures caused by:
ꢀPhysical abuse or use not consistent with the operating instructions or product
specifications.
ꢀUse of any type of data cartridge other than an Tandberg VXAtape or an Tandberg
approved VXAtape cartridge.
ꢀUse of any type of cleaning material other than an Tandberg VXAtape Cleaning
Cartridge.
ꢀRepair or modification by any one other than Tandberg’s personnel or agent in a
manner differing from the maintenance instructions provided by Tandberg Data.
ꢀRemoval of the Tandberg Data identification label(s).
ꢀPhysical abuse due to improper packaging of returned tape drives.
If problems with the tape drive occur, contact Tandberg Data or your service provider;
do not void the product warranty by allowing untrained or unauthorized personnel to
attempt repairs.
Returning the tape drive in unauthorized packaging may damage the unit and void the
warranty.
Caution
If you are returning the tape drive for repair, package it in its original packaging (or in
replacement packaging obtained from your vendor).
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CONTACTING
TANDBERG DATA
To obtain general information
Tandberg Data ASA
International
Headquarters
Kjelsåsveien 161, P.O.Box 134 Kjelsås,
N-0411 Oslo, Norway
Tel: +47 22 18 90 90
World Wide Web
To obtain technical support
Tandberg Data
Technical Support
To order supplies and accessories
Tandberg Data
Sales Support
To return equipment for service (RMA Request)
Tandberg Data
Service
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HOW TO USE THIS MANUAL
HOW TO USE THIS MANUAL
This manual describes how to install, operate, and maintain the VXA™-320
tape drive. It also provides functional, performance, and environmental
specifications.
ORGANIZATION
The information in this manual is organized into chapters that allow you to
quickly locate the information you need.
First-time installation
If you are installing the tape drive for the first time, refer to the following
chapters:
components.
the host computer, and powering it on.
Operation, troubleshooting, maintenance, and service
Refer to these chapters for information about operating, maintaining, and
troubleshooting your tape drive:
LEDs.
drive, including returning it for service, upgrading firmware, and obtaining
a diagnostic listing.
Specifications, standards, and terms
These chapters are for engineering, purchasing, or marketing personnel who
want to evaluate the tape drive to determine the feasibility of integrating it
into their product lines.
SCSI command protocol supported by the tape drive. It also describes the
communication interface specifications for the tape drive, including cable
and connector requirements for the LVD SCSI interface.
reliability, power, and environmental specifications. This chapter also
provides safety and regulatory agency standards compliance information.
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HOW TO USE THIS MANUAL
RELATED PUBLICATIONS
For more information about the tape drive and the standards used by the tape
drive, refer to the following publications. To order an Tandberg Data
publication, see “Contacting Tandberg Data” on page iv. To download a PDF
version of an Tandberg Data publication, visit the Tandberg Data web site
Note: The VXA-320 publications are included as PDF files on the CD that
accompanies your tape drive.
VXA-320 Publications
ꢀVXA-320 SCSI Tape Drive Quick Start, 433690-01
ꢀVXA-320 (VXA-3) SCSI Reference Manual, 433691-01
Standards Publications
ꢀInformation Technology - SCSI Primary Commands - 2 (SPC-2), ANSI INCITS
351-2001
ꢀInformation Technology – SCSI Parallel Interface-3 (SPI-3), ANSI INCITS
336-2000
ꢀInformation Technology -SCSI Architecture Model - 2 (SAM-2), ANSI INCITS
366-2003
ꢀInformation Technology - SCSI Stream Commands - 2 (SSC-2), ANSI INCITS
380-2003
ꢀTapeAlert Specification, NCITS T10/02-142R0, Version 3.0, March 2002
CONVENTIONS USED IN THIS MANUAL
This manual uses the following conventions:
Note: Notes provide additional information or suggestions about the topic or
procedure being discussed..
Read text marked by the “Important” icon for information that
! Important
will help you complete a procedure or avoid extra steps.
Read text marked by the “CAUTION” icon for information you must know to avoid
damaging the autoloader, tape drive, or losing data.
Caution
Warning
Read text marked by the “WARNING” icon for information you must know to
avoid personal injury.
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Contents
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NOTES
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Figures
1 VXA-320 Features
2 Installation
Figure 2-2 SCSI ID settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
last device on the bus) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
3 Operation
7 Specifications
ranges58
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Tables
3 Operation
LED states . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
4 Troubleshooting
Service Notification error recovery procedures . . . . . . . . . . . . . . 28
6 Communication Interface and Command Protocol
SCSI bus phases and information transfer phases . . . . . . . . . . . . 38
SCSI messages supported by the tape drive . . . . . . . . . . . . . . . . 39
SCSI cable and connector specifications . . . . . . . . . . . . . . . . . . . 41
Pin assignments for the wide LVD connector . . . . . . . . . . . . . . . 42
SCSI cable requirements. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
SCSI command set . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Status byte descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Supported sense keys. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
7 Specifications
Data capacities in gigabytes (GB) . . . . . . . . . . . . . . . . . . . . . . . . 49
Data transfer rates in megabytes per second. . . . . . . . . . . . . . . . 50
Read and write specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Tape speed and access times . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Reliability specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Size and weight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Pin assignments for the power connector . . . . . . . . . . . . . . . . . . 53
Power specifications (internal model) . . . . . . . . . . . . . . . . . . . . . 54
Power consumption (internal model) . . . . . . . . . . . . . . . . . . . . . 54
Table 7-18 Shock specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
Table 7-19 Vibration specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
60
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TAPE DRIVE MODELS AND INTERFACES
1
FEATURES
This chapter describes the VXA-320 tape drive features and components. The
VXA-320 tape drive is designed for the storage and management of
enterprise-wide, mission-critical data.
The VXA-320 tape drive’s capabilities are:
Data storage
160 gigabytes (GB) of uncompressed (native) data on
a 230-meter VXAtape
Data transfer rate
12 megabytes (MB) per second (native) and is
read/write compatible with the second-generation
VXA tape drive (VXA-2)
VXA-320 external model
VXA-320 internal model
55A
3
3
Figure 1-1 VXA-320 tape drives (internal and external models)
TAPE DRIVE MODELS AND INTERFACES
For simple and convenient system integration, the VXA-320 tape drive is
available in external and internal models. The internal VXA-320 complies with
industry standard 5.25-inch half-high form factor mounting requirements and
can be mounted horizontally or vertically. The external standalone model is
housed in an enclosure that allows the device to be placed horizontally or
vertically on a flat surface. External models can also be stacked. Neither model
can be operated upside down.
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CHAPTER 1 FEATURES
Both the internal and external models of the VXA-320 tape drive are available
with a wide, High-density (HD), 68-pin low-voltage differential (LVD) SCSI
interface.
COMPONENTS
This section describes the major components of both the internal and external
models of the tape drive.
FRONT PANEL COMPONENTS
of the tape drive. For more information about using these controls and
indicators, see Chapter 3.
Ventilation
holes
Door
3
1
2
3
4
Status LEDs
Eject button
Figure 1-2 Internal tape drive: front-panel components
Ventilation
holes
Door
3
1
2
3
4
Power LED
Status LEDs
Eject button
Figure 1-3 External tape drive: front-panel components
Door Used for inserting the cartridge into the tape drive.
Eject Button Used to unload the tape and eject the cartridge.
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COMPONENTS
Status LEDs (Light Emitting Diodes) Show status information, which is
described in “Monitoring the LEDs” on page 20.
Power LED Shows the power-on status of the external tape drive.
BACK PANEL COMPONENTS – INTERNAL TAPE DRIVE
Figure 1-4 shows the back panel components of the internal SCSI tape drive.
For more information about using these components during installation, see
Chapter 2.
Auxiliary
connector
SCSI
connector
Fan
Grounding
tab
SCSI ID
jumper block
Power
connector
Grounding
hole
RF service
connector
Figure 1-4 Internal tape drive: back-panel components
Fan Provides cooling to maintain proper operating temperature at the tape
path.
SCSI Connector Used to connect the tape drive to the SCSI bus. This is a
68-pin LVD SCSI connector. (See Tab l e 6 -4 for pin assignments.)
Auxiliary Connector Used for tape drive diagnostics.
SCSI ID Jumper Block (SCSI model only) Used to set the SCSI ID.
Grounding Tab and Hole Used to provide additional chassis grounding. (The
mounting screws also provide grounding for the tape drive.)
RF Service Connector Reserved for Tandberg Data Service personnel.
Power Connector Used to connect a power cable from the enclosure’s power
supply. This is a 4-pin connector. (See Ta bl e 6 -4 for pin assignments.)
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CHAPTER 1 FEATURES
BACK PANEL COMPONENTS – EXTERNAL TAPE DRIVE
Figure 1-5 shows the back-panel components of the external SCSI model of the
tape drive.
Figure 1-5 External tape drive: back-panel components
On/Off Switch Used to turn power on and off.
AC Power Connector Used to provide power through a grounded AC power
connector. A power cord is included with the tape drive.
Serial Connector Used to connect the tape drive to the serial port of a
computer for performing diagnostic operations with VXATool (see page 31).
SCSI Connectors (SCSI tape drive only) Used to connect the tape drive to the
SCSI bus with two SCSI cables or one SCSI cable and a terminator. These
connectors are 68-pin high-density LVD SCSI connectors.
SCSI ID Switch Used to set the SCSI ID.
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COMPONENTS
TAPE DRIVE LABELS
The VXA-320 tape drive includes two labels:
number, revision, connector type, and agency information.
jumpers.
Depending on the model tape drive you have, the labels on your tape drive
may differ.
Do not remove or modify these labels. If you do so, you will void the product
warranty.
Caution
Figure 1-6 Top-panel label (SCSI tape drive)
Figure 1-7 Back-panel label (SCSI tape drive)
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CHAPTER 1 FEATURES
NOTES
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UNPACKING THE TAPE DRIVE
2
INSTALLATION
This chapter provides step-by-step instructions for installing the internal and
external models of the VXA-320 tape drive. The information in this chapter
expands on the instructions in the Quick Start guide that accompanied your
tape drive.
UNPACKING THE TAPE DRIVE
All Tandberg Data tape drives are tested, inspected, and carefully packaged at
the factory. However, because shipping damage can occur, you should follow
the steps below to unpack the tape drive:
1. Visually inspect the shipping container and notify your freight carrier
immediately if you see any damage.
2. Place the shipping container on a flat, clean, stable surface. If parts are
missing or the equipment is damaged, notify your supplier or Tandberg
Data.
3. Save the original shipping container and packaging materials in case you
need to reship the tape drive.
INSTALLING THE TAPE DRIVE
The installation instructions for your tape drive depend on what model you
have:
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CHAPTER 2 INSTALLATION
INSTALLING THE INTERNAL SCSI TAPE DRIVE
The internal tape drive complies with industry-standard, 5.25-inch half-high
form factor mounting requirements and can be mounted either horizontally or
vertically, but not upside down.
back-panel components on the SCSI tape drive.
SCSI
connector
Auxiliary
connector
Grounding
tab
SCSI ID
jumper block
Grounding
hole
RF service
connector
Power
connector
Figure 2-1 Internal SCSI tape drive: back-panel components
Before You Begin
Before you begin hardware installation, do the following:
1. Select a suitable location for your tape drive—Ensure that the work area is
free from conditions that could cause electrostatic discharge (ESD).
Discharge static electricity from your body by touching a known grounded
surface, such as your computer’s metal chassis.
2. Install an LVD SCSI host bus adapter — Install the LVD SCSI host bus
adapter (HBA) and any necessary drivers in the host computer.
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INSTALLING THE TAPE DRIVE
3. Select your backup software application — To obtain information about
which backup software applications work with the tape drive, visit
software application on the host computer before or after you install the
tape drive. However, if you install the backup application software first, you
may need to reconfigure it for use with the tape drive.
Do not connect the tape drive to a RAID controller. The tape drive
will not operate properly if it is connected to a RAID controller.
! Important
Although the tape drive’s High-density LVD SCSI interface is
compatible with both single-ended and narrow SCSI buses, to
avoid performance issues Tandberg Data does not recommend
using the tape drive on either of these buses.
If any single-ended device, including a single-ended terminator is
attached to the LVD bus, the result is that all devices on that bus
will run in single-ended mode. Tandberg Data recommends that
you do not use the tape drive on a bus with a single-ended device.
Do not connect the tape drive to an HVD controller. Doing so may damage the
tape drive.
Caution
4. Obtain the necessary cables and terminator — The tape drive connects to
the SCSI bus using a cable with a high-density, 68-pin male connector. This
cable must meet the guidelines in “SCSI Cable Requirements,” beginning
on page 41. If the tape drive is the last device on the SCSI bus, you will need
to install an LVD/SE terminator at the physical end of the bus.
5. Do not exceed SCSI bus length restrictions— The maximum allowable
length of an LVD SCSI bus is 12 meters (39 feet) if you have more than two
devices on the bus. Make sure the SCSI bus attached to the tape drive does
not exceed this length. To determine the length of the bus:
a. Add together the lengths of all external SCSI cables attaching devices on
the bus. External devices are those connected outside of the server’s
enclosure.
b. Add together the lengths of all SCSI cables attaching internal devices on
the bus. Internal devices are those installed within the server’s enclosure.
c. Add together the lengths of all internal cabling for all other SCSI devices
on the bus. Refer to the individual product documentation for cable
length information.
Set the SCSI ID and connect the SCSI cable
1. Power down the computer system.
Turn off all devices attached to the computer in which you plan to install the
tape drive, then turn off the computer. Disconnect all power cables.
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CHAPTER 2 INSTALLATION
2. Prepare the drive bay.
Remove the drive bay’s cover plate according to the system manufacturer’s
instructions.
3. Set the SCSI ID jumpers, if necessary.
a. The tape drive is shipped with a SCSI ID of 11. If another device on the
SCSI bus is already configured with this SCSI ID, you will need to change
the tape drive’s SCSI ID. Reposition the jumpers on the jumper block, as
pliers to remove the jumpers.) If you need an additional jumper, use a
2 mm jumper.
Address 0
Address 2
Address 4
Address 6
Address 1
Address 3
Address 5
Address 7
Address 8
Address 10
Address 12
Address 14
Address 9
Address 11
Address 13
Address 15
Factory
setting
Figure 2-2 SCSI ID settings
Alternatively, you can remove the jumpers and connect a cable (not
included) from a remote switch to the jumper block, then use the remote
switch to set the SCSI ID. The cable should use a connector equivalent to
Hirose Housing part number DF11-8DS-2C, 2.0MM 8CKT to connect to the
jumper block.
Each device on the SCSI bus must have a unique SCSI ID.
! Important
b. Provide additional grounding, if desired.
Attaching the tape drive to the enclosure protects the tape drive from ESD.
However, if you want additional chassis grounding for the tape drive, use
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INSTALLING THE TAPE DRIVE
ꢀConnect an M3 (0.25 in.) female spade connector from the host to the
tape drive’s grounding tab.
or
Use an M3 × 0.5 mm × 5 mm machine screw to connect a grounding wire
to the grounding hole.
Do not use a screw other than the type specified for attaching the grounding wire,
or you may damage the internal components. Screw length must not exceed
5mm.
Caution
Caution
4. Connect the SCSI cable.
a. Check the connector to ensure that no pins are bent or pushed in before
connecting it to the tape drive.
To avoid damaging the tape drive, make certain you connect pin 1 on the cable to
pin 1 on the tape drive. Pin 1 is on the right, top row of the connector pins (see
b. Connect one of the enclosure’s internal SCSI cables to the SCSI connector
connect the SCSI cable, the terminator (if required), and the power
cable to the back. However, if the cables are difficult to access in the
enclosure, you should extend the cables out through the drive bay
and connect them before mounting the tape drive.
Pin 1
SCSI
connector
Power
connector
from host computer
power supply
to additional
SCSI device
to SCSI
adapter card
Figure 2-3 Connecting the SCSI cable and power cable (another device is the last
device on the bus)
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CHAPTER 2 INSTALLATION
5. Install an LVD or LVD/SE multimode terminator at the physical end of the
SCSI bus. If the cable provided with your adapter has a built-in terminator,
do not add another terminator to the bus.
Note: If the tape drive is the last device on the SCSI bus and if the SCSI
cable has an unused connector at the end, you can terminate the bus
by installing a pass-through terminator on the tape drive’s SCSI
connector.
If there are additional devices on the SCSI bus, ensure that only the device
at the physical end of the bus is terminated.
Pin 1
SCSI
connector
Power
connector
from host computer
power supply
to SCSI
adapter card
Terminator
Figure 2-4 Connecting a SCSI cable (tape drive is last device on the bus)
Connect the power cable and mount the tape drive in the enclosure
1. Connect the power cable.
Locate the enclosure’s internal power cable and connect it to the tape
enclosure’s power cable connector must be an AMP 1-480424-0 series, or
equivalent.
2. Mount the tape drive in the drive bay.
Slide the tape drive into the bay. Ensure that no cables are caught or
crimped between the tape drive and the chassis. Also ensure that the
ventilation fan on the back of the tape drive is not obstructed.
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INSTALLING THE TAPE DRIVE
Using the screws provided with the tape drive, secure the tape drive in the
To avoid damaging the tape drive, follow these precautions:
Caution
ꢀUse only the M3 × 0.5 × 5 mm Phillips screws. Screw length must not exceed
5mm.
ꢀEnsure that the chassis is not distorted. (Alignment to the horizontal or vertical
plane should not exceed ±10°.)
ꢀEnsure that no objects (screw heads, cables, or adjacent devices) are pressing
against the frame.
ꢀDo not use a combination of the two sets of mounting holes.
ꢀDo not obstruct the ventilation fan on the back of the tape drive.
Bottom mounting
Side mounting
3
3
Figure 2-5 Screw mounting configurations (internal model)
3. Power on the computer system or enclosure.
During the tape drive’s power-on self-test, the LEDs scroll sequentially
right to left, then left to right in amber and green. LED 4 illuminates in red
and green. When POST is complete, LED 4 illuminates in green. (See
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CHAPTER 2 INSTALLATION
INSTALLING THE EXTERNAL SCSI TAPE DRIVE
location of the back-panel components.
Figure 2-6 External SCSI tape drive: back-panel components
Before You Begin
Before you begin hardware installation, do the following:
1. Select a suitable location for your tape drive—Ensure that the work area is
free from conditions that could cause electrostatic discharge (ESD).
Discharge static electricity from your body by touching a known grounded
surface, such as your computer’s metal chassis.
2. Install an LVD SCSI host bus adapter — Install the LVD SCSI host bus
adapter (HBA) and any necessary drivers in the host computer.
3. Select your backup software application — To obtain information about
which backup software applications work with the tape drive, visit
software application on the host computer before or after you install the
tape drive. However, if you install the backup software application first, you
may need to reconfigure it for use with the tape drive.
Do not connect the tape drive to a RAID controller. The tape drive
will not operate properly if it is connected to a RAID controller.
! Important
Although the tape drive’s High-density LVD SCSI interface is
compatible with both single-ended and narrow SCSI buses, to
avoid performance issues Tandberg Data does not recommend
using the tape drive on either of these buses.
If any single-ended device, including a single-ended terminator is
attached to the LVD bus, the result is that all devices on that bus
will run in single-ended mode. Tandberg Data recommends that
you do not use the tape drive on a bus with a single-ended device.
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INSTALLING THE TAPE DRIVE
4. Obtain the necessary cables and terminator — The tape drive connects to
the SCSI bus using a cable with a high-density, 68-pin male connector. This
cable must meet the guidelines in “SCSI Cable Requirements,” beginning
on page 41. If the tape drive is the last device on the SCSI bus, you will need
to install an LVD/SE terminator at the physical end of the bus.
5. Do not exceed SCSI bus length restrictions— The maximum allowable
length of an LVD SCSI bus is 12 meters (39 feet) if you have more than two
devices on the bus. Make sure the SCSI bus attached to the tape drive does
not exceed this length. To determine the length of the bus:
a. Add together the lengths of all external SCSI cables attaching devices on
the bus. External devices are those connected outside of the server’s
enclosure.
b. Add together the lengths of all SCSI cables attaching internal devices on
the bus. Internal devices are those installed within the server’s enclosure.
c. Add together the lengths of all internal cabling for all other SCSI devices
on the bus. Refer to the individual product documentation for cable
length information.
6. Make sure the SCSI bus is properly terminated— You must install an LVD
or LVD/SE multimode terminator on the device at the physical end of the
SCSI bus. If the tape drive is at the physical end of the SCSI bus, you must
install the required terminator on one of the tape drive’s SCSI connectors.
If there are additional devices on the SCSI bus, ensure that only the device
at the physical end of the bus is terminated.
Install the Tape Drive
1. Power down the host computer system.
Turn off all devices attached to the computer to which you plan to connect
the tape drive, then turn off the computer. Disconnect all power cables.
2. Set the SCSI ID.
The tape drive is shipped with a SCSI ID of 11. If another device on the SCSI
bus is already configured with this SCSI ID, you will need to change the
tape drive’s SCSI ID. To change the default ID, press the + and – tabs above
and below the SCSI ID indicator until the desired SCSI ID appears. See
3. Connect the SCSI cable.
a. Ensure that the cable complies with the SCSI-3 specification and has a
Do not use a noncompliant SCSI cable; it will degrade VXA-320 performance and
Caution
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CHAPTER 2 INSTALLATION
b. Check the connector to ensure that no pins are bent or pushed in before
connecting it to the tape drive.
c. Connect a SCSI cable from the host computer system to the back of the
tape drive.
d. Use the two thumb screws on the cable to fully seat the connector.
4. Install an LVD or LVD/SE multimode terminator at the physical end of the
SCSI bus. If the cable provided with your adapter has a built-in terminator,
do not add another terminator to the bus.
If the tape drive is the last device on the bus, install a terminator on the
If there are additional devices on the SCSI bus, ensure that only the device
at the physical end of the bus is terminated.
To SCSI Adapter
Computer
The tape drive is the last
device on the SCSI bus.
Terminator
To SCSI Adapter
Computer
T
er
SCSI
minat
ed
vic
Terminator
D
e
e
Another peripheral is the last
device on the SCSI bus.
SCSI
D
e
vic
e
Figure 2-7 Terminating the SCSI bus (external model)
5. Connect the power cable and turn on the power.
Connect the power cable to the back of the tape drive. Turn on the tape
drive’s power switch. During the tape drive’s power-on self-test (POST),
the LEDs scroll sequentially right to left, then left to right in amber and
green. LED 4 illuminates in red and green. When POST is complete, LED 4
description of the LED states.)
6. Power on the host computer system.
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INSTALLING THE TAPE DRIVE
Checking the Installation
After installing the tape drive on your system, check the installation by
performing a small write and read operation. This will confirm that the system
can communicate with the tape drive and that the tape drive is operational.
The simplest method for checking the installation is to use VXATool. VXATool
is available for several operating systems and can be downloaded from the
Check the installation by following these steps:
1. Install VXATool.
Detailed instructions are included in the “readme” file available with the
VXATool download.
2. Stop all backup software application services on the system.
If a backup software application is already installed on your system,
completely shut down the backup software application and any services it
may be running. The backup software application may prevent
communications with thee tape drive or may interrupt VXATool functions
resulting in their failure.
3. Confirm that the system can communicate with the tape drive.
Run VXATool and confirm that it can retrieve basic drive information from
the tape drive. Refer to the VXATool readme file or on-line help for
instructions.
4. Insert a cartridge and use VXATool to run a write/read test.
Refer to the VXATool readme file or on-line help for instructions on how to
run a diagnostic write/read test.
5. Update the firmware.
Updates to the tape drive’s firmware are made available for download from
current version of firmware in your tape drive and to update the firmware
as needed.
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CHAPTER 2 INSTALLATION
INTEGRATING THE TAPE DRIVE
After installing the VXA-320 tape drive, you may need to integrate it with your
backup software application and computer operating system. The Support
backup software applications and operating systems that are compatible with
the VXA-320 tape drive.
If your backup software application does not support the VXA-320 tape drive,
you can use VXATool to change the product identification information
(Inquiry String) that the tape drive returns to the software. Changing the tape
drive’s identification information does not affect the tape drive’s speed or
capacity. For instructions on using VXATool to change the tape drive’s Inquiry
String, refer to the help or readme file provided with VXATool. Additional
Refer to the information provided with your backup software application for
device integration instructions. Refer any questions regarding software
configuration and operation to your software provider.
The CD included with the tape drive provides device drivers for use with the
Windows operating system.
Do not install these drivers unless you are using the Windows
native backup software application or unless your backup software
application instructs you to do so.
! Important
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3
OPERATION
show the controls and indicators on the front panel of the tape drive.
Ventilation
holes
Door
3
1
2
3
4
Status LEDs
Eject button
Figure 3-1 Internal tape drive: front-panel components
Ventilation
holes
Door
3
1
2
3
4
Power LED
Status LEDs
Eject button
Figure 3-2 External tape drive: front-panel components
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CHAPTER 3 OPERATION
MONITORING THE LEDS
The VXA-320 tape drive uses four LEDs to indicate its operational status, as
Note: The LEDs are numbered 1 through 4 from left to right.
Table 3-1 LED states
Operation
LED Pattern
LED #1
Operational Conditions
LEDs illuminate sequentiallya
Off
LED #2
LED #3
LED #4
Power-on self-test
No tape loaded
Off
Off
Off
Off
Green
Interface activity; (LED
4 may flash with other
LED operations)
Flashing
Green
Off
Tape loading or
unloading
Flashing
Green
Off
Off
Off
Off
Off
Off
Tape ready; idle
Reading
Green
Off or
Flashing
Green
Off
Off
Green
Amber
Writing
Off or
Flashing
Green
Amber or
Greenb
Off
Off
Space forward
Flashing
Green
Off
Off
Off
Off
Off
Off
Space reverse or
rewinding
Flashing
Green
Off
Cleaning in process
Flashing
Green
Flashing
Green
Service Notification
Cleaning required
Flashing
Amber
Off
Off
Off
Off
Off
Off
Cleaning tape used up
Flashing
Green/Amber
Recoverable errorc
Amber
Amber
Green
Off
Amber
Amber
Off or Green
Off or Green
Unrecoverable errorc
Factory service
requiredd
Flashing Green or Amber
Flashing Red
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MONITORING THE LEDS
Table 3-1 LED states (continued)
Operation
LED Pattern
LED #1
LED #2
LED #3
LED #4
Service Notification (continued)
Broken tape
Format recoverye
Flashing
Off
Flashing
Green/Amber
Green
Green
Green/Amber
Flashing
Green/Amber
Off
Off
Off
Off
Temperaturetoohighin
tape pathf
Flashing
Orange
Off
Boot Block Modeg
Flashing
Green
Flashing
Amber
Flashing
Orange
Flashing
Green
Self Test
Self-test running
Off or Flashing
Green
Fast scrolling green
Self-test passed
Self-test failedh
Green
Amber
Green
Amber
Green
Amber
Off
Off
Firmware Load
Loading firmware
Loading firmware
KEY: Flashing LEDs =
Flashing
Amber
Flashing
Green
Flashing
Amber
Orange
Orange
Flashing
Flashing
Flashing
Green/Amber Green/Amber Green/Amber
On =
Off =
a
For the power-on self-test, the LEDs scroll sequentially right to left then left to right in amber and green. LED 4 illuminates in red and
green. When POST is completed, LED 4 is illuminated in green.
b
c
When LED 2 is amber, hardware compression is enabled. When LED 2 is green, hardware compression is disabled.
Retry the operation with another tape, making sure that the tape is not written in VXA-1 format. If the problem persists, try power cycling
the tape drive to clear the error. If you cannot resolve the problem yourself, contact Tandberg Data Technical Support (see “Contacting
Tandberg Data” on page iv). To capture a log of a problem, use VXATool, which is available as a free download from www.tandberg.com.
d
e
You may need to return the tape drive for service; contact Tandberg Data Technical Support. To get a log of the problem, use VXATool,
The tape was written without a valid end-of-data mark, which often occurs if you power-down the tape drive while the tape drive was
writing. The tape drive will perform a format recovery, which involves reading the data to determine where the end of data is located. This
may take as long as 2 to 3 hours.
f
g
If the tape drive is in Boot Block Mode, try power cycling the tape drive. If it remains in Boot Block Mode, load new firmware. VXA-320
h
If a self-test fails, clean the tape drive with a VXAtape cleaning cartridge. If the failure still occurs, try a new tape.
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CHAPTER 3 OPERATION
USING VXATAPE CARTRIDGES
The tape drive uses data-quality VXAtape data cartridges, in various lengths,
available from Tandberg Data and authorized sources. These cartridges do not
page 49 for compatibility and capacity information for VXAtape cartridges. See
page 23 for storage guidelines.
The VXA-320 tape drive only operates with VXAtape data cartridges. Do not
attempt to use other types of cartridges, or you may damage the tape drive.
Caution
SETTING THE WRITE-PROTECT SWITCH
Before you insert a cartridge into the tape drive, make sure the write-protect
R
E
C
REC= write-enabled
SAVE = write-protected
S
A
V
E
RE
C
SA
V
E
Figure 3-3 Setting the write-protect switch
LOADING A CARTRIDGE
Insert the front of the cartridge through the tape drive door into the loader
mechanism. (The colored write-protect tab on the cartridge should be closest
to the tape drive’s eject button.) Gently push the cartridge until the tape
drive’s loader mechanism activates and completes the tape-loading process.
The tape drive loads the tape in approximately 40 seconds, during which time,
LED 2 flashes green. When LED 2 is steady green, the tape drive is ready to
begin write and read operations.
UNLOADING A CARTRIDGE
To unload a cartridge, press the eject button. The tape drive completes any
command in process, writes any buffered information to tape, rewinds to the
beginning of the tape, and ejects the cartridge in approximately 1 to 2 minutes.
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CLEANING THE TAPE DRIVE
STORING THE CARTRIDGES
If VXAtape cartridges are stored properly, you can expect to successfully
recover data from them for 30 years. Be aware that the 30-year storage life is
for an archival tape, not a tape being used for daily backups.
As a general rule, use a new (or relatively unused) cartridge to store any
critical data you may need to recover many years from now. Do not use a
cartridge that has reached its retirement point. For routine backups that get
overwritten each day or week, it is acceptable to reuse cartridges until they are
ready for retirement.
Proper storage of cartridges helps prevent media-related problems. To ensure
a storage period of 30 years, follow these guidelines:
ꢀRemove the cartridge from the tape drive and store it as soon as possible
after you have finished writing or reading data. Avoid handling the
cartridge excessively. Never open the cartridge door or touch the tape.
ꢀLabel each cartridge.
ꢀSet the cartridge write-protect switch to prevent accidental over-writing by
ꢀKeep each cartridge in its protective case or a container designed for
cartridge storage.
ꢀStore cartridges away from copiers and printers to avoid contamination by
toner and paper dust.
ꢀStore cartridges away from objects or devices that emit strong magnetic
fields.
CLEANING THE TAPE DRIVE
This section describes when and how to clean the tape drive to maintain
optimal performance. Circulating air may introduce debris into the tape path.
If debris builds up on the heads, error rates increase and backups take longer
because the tape drive must rewrite the data. The VXA-320 tape drive includes
an internal cleaning wheel to remove contamination from the tape path.
However, you should still clean the tape drive regularly with a separate
cleaning cartridge to maximize tape drive reliability and the life of your tapes.
DETERMINING WHEN TO CLEAN THE TAPE DRIVE
When the tape drive requires cleaning, LED 2 flashes amber. The tape drive
should be cleaned as soon as possible after this LED begins flashing.
Note: Some software applications may notify you that the tape drive requires
cleaning. Refer to your software documentation for more information.
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CHAPTER 3 OPERATION
USING A CLEANING CARTRIDGE
Insert a VXAtape Cleaning Cartridge into the tape drive. The tape drive
automatically performs the cleaning cycle in less than one minute. When
finished, the tape drive ejects the cleaning cartridge and LED 2 turns off.
Note: If there are no more cleaning cycles remaining on the cleaning cartridge,
the tape drive ejects the cartridge without performing the cleaning and
LED 2 flashes green and amber.
Do not use any cleaning method other than the VXAtape Cleaning Cartridge (or a
cleaning cartridge approved by Tandberg Data for use with VXA tape drives). Using
other cleaning methods may void the tape drive’s warranty.
Caution
Do not rewind and reuse the material in a cleaning cartridge. Reuse may
redistribute contaminants previously removed from the tape path. If all cleaning
material has been used, discard the cartridge and use a new cleaning cartridge.
RESETTING THE TAPE DRIVE
To reset the VXA-320 tape drive, perform one of the following steps:
ꢀPress and hold the unload button for at least 10 seconds, then release the
button. This clears any error, ejects any cartridge that is in the tape drive
(unless a hardware error occurred), and resets the tape drive.
Note: If the tape drive contains a cartridge, the tape drive rewinds the tape
to the beginning before ejecting the cartridge. The time required to
complete the rewind depends on what size cartridge you are using
and if the tape was positioned near the end.
ꢀPower down the tape drive. Wait 10 seconds, then turn the tape drive back
on. Depending on what function the tape drive was performing before the
reset, the tape drive may automatically start a lengthy format recovery
process, which involves reading the data to determine where the end of data
is located. This may take as long as 2 to 3 hours. Wait for the format recovery
to complete.
ꢀSend a bus device reset (0Ch) message to the tape drive. A device reset clears
all input/output (I/O) processes on that SCSI bus.
ꢀSend a SCSI bus reset. (Make sure no other devices are using the SCSI bus.)
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RESOLVING PROBLEMS
4
TROUBLESHOOTING
This chapter describes problems that you might encounter while operating the
VXA-320 tape drive and provides suggestions for resolving the problems.
also provides helpful troubleshooting tips.
RESOLVING PROBLEMS
TAPE DRIVE WILL NOT ACCEPT A CARTRIDGE
If the tape drive does not accept a cartridge when you insert it into the tape
drive door, do the following:
1. Determine if there’s already a cartridge loaded.
Press the eject button; there may be a cartridge already loaded in the tape
drive.
2. Make sure you are using VXATape cartridges with either VXA-2 or VXA-320
(VXA-3) format.
ꢀIf the cartridge you are attempting to load is not a VXATape cartridge, the
tape drive automatically ejects it.
ꢀIf the cartridge contains data written in VXA-1 format, the tape drive
automatically ejects it. The front panel LEDs indicate an unrecoverable
error (LEDs 1 and 3 are amber, LEDs 2 and 4 are off).
3. Check that the tape drive is powered on and that it is not indicating an error
states.
4. Check to see if LED 4 is flashing orange, indicating that the tape drive is
5. Power cycle the tape drive.
Power down the tape drive. Wait 10 seconds, then turn the tape drive back
on.
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CHAPTER 4 TROUBLESHOOTING
On power-up, observe the tape drive’s LED code sequence. If the LEDs do
not illuminate, check the power supply and power cable connection. If the
tape drive is installed internally in a server, try connecting a different power
cable to the tape drive.
If power to the tape drive was interrupted when you originally attempted
to load a cartridge, the tape drive detects the tape when its power is
restored and then rewinds the tape. If this is the case, press the eject button,
remove the cartridge, and begin the session again.
6. Push the cartridge straight into the tape drive. If the cartridge is inserted or
pushed at an angle, you will feel resistance and will not be able to load the
cartridge.
7. Check to see if all four LEDs are flashing (LED 1 is green, LED 2 is amber,
LED 3 is orange, LED 4 is green), indicating that the tape drive is in Boot
Block Mode.
If a firmware upgrade was interrupted or did not complete successfully, the
tape drive powers on in Boot Block Mode. Reload the firmware as described
cartridge until the firmware is successfully reloaded.
LED 4 IS FLASHING ORANGE
If LED 4 is flashing orange, the tape drive is over temperature and must cool
down before operations can continue. Do the following:
1. Wait for the tape drive to cool.
When the tape drive cools down, LED 4 turns off. Do not attempt to load a
cartridge or perform any operations during this time. If there is a tape
loaded in the tape drive, press the eject button to unload the tape and move
it to a cooler environment.
2. If necessary, power cycle the tape drive.
If the tape drive does not cool down on its own, power down the tape drive.
Wait a few minutes, then turn the tape drive back on. If LED 4 is still orange
after power-up, the tape drive may be in an environment that is too hot.
ꢀIf the tape drive is an internal model, check that the ventilation fan on
the back of the tape drive is not obstructed and that the tape drive is not
located near devices that are emitting excessive heat.
ꢀIf the tape drive is an external model, check that the ambient
If the temperature is within the specifications, the enclosure’s fan may
not be working properly and you should return the tape drive for
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RESOLVING PROBLEMS
TAPE DRIVE WILL NOT EJECT A CARTRIDGE
If the tape drive does not eject a cartridge when you press the eject button, do
the following:
1. Use your backup application to eject the cartridge.
To protect against accidental tape ejection during a backup or restore
operation, many applications prevent using the tape drive’s eject button for
media removal.
2. If you cannot eject the cartridge through the application, use VXATool to
unload the cartridge. Refer to the readme file or on-line help available with
VXATool for instructions.
3. Reset the tape drive. Press and hold the unload button for at least 10
seconds, then release the button. This clears any error, ejects any cartridge
that is in the tape drive (unless a hardware error occurred), and resets the
tape drive.
Note: If the tape drive contains a cartridge, the tape drive rewinds the tape
to the beginning before ejecting the cartridge. The time required to
complete the rewind depends on what size cartridge you are using
and if the tape was positioned near the end.
4. Power cycle the tape drive.
Power down the tape drive. Wait 10 seconds, then turn the tape drive back
on. Depending on what function the tape drive was performing before the
reset, the tape drive may automatically start a lengthy format recovery
process, which involves reading the data to determine where the end of
data is located. This may take as long as 2 to 3 hours. Wait for the format
recovery to complete.
5. If the cartridge appears to be stuck in the tape drive, return the tape drive
for service.
If you still cannot eject the cartridge, you may need to return the tape drive
for repair with the cartridge in place.
TAPE DRIVE IS NOT DETECTED BY THE OPERATING SYSTEM OR BACKUP
APPLICATION
If the tape drive powers up, loads and unloads cartridges, but is not
recognized by the operating system or backup application, do the following:
1. Check the SCSI host bus adapter installation.
ꢀConfirm that the tape drive is connected to an LVD SCSI controller. Do
not connect the tape drive to a RADI or RAID-enabled controller or to an
HVD controller.
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CHAPTER 4 TROUBLESHOOTING
ꢀCheck that the SCSI controller and the most recent drivers available for
it are installed according to the manufacturer’s instructions.
ꢀCheck that the SCSI controller is fully seated in its slot. You can also try
2. Make sure the tape drive is installed properly on the bus, described in
ꢀIs the tape drive set to a unique SCSI ID?
ꢀIs a terminator installed at the physical end of the SCSI bus? Try another
terminator.
ꢀIs there a broken cable or defective connector? Try another, known-good
cable.
ꢀIs the cable correctly oriented and firmly seated on the tape drive
connector?
3. Check that the tape drive is powered-on and that its LEDs are not
states.
4. Reboot your system.
5. Try using VXATool to communicate with the tape drive. Before running
VXATool, stop all services for your backup application. If VXATool can
detect and communicate with the tape drive, but your backup application
cannot, contact the application provider for software support.
6. Verify that the tape drive is supported by your operating system and
details on how to confirm this information.
A SERVICE NOTIFICATION LED CODE APPEARS
Table 4-1 Service Notification error recovery procedures
Service Notification Suggested Recovery Procedure
Cleaning Required
when the tape drive needs to be cleaned. Use only an Tandberg Data approved
VXAtape Cleaning Cartridge.
Cleaning Tape used
up
Discard the cartridge and use a new cleaning cartridge. Do not rewind and reuse
the material in a cleaning cartridge. Reuse may redistribute contaminants
previously removed from the tape path.
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RESOLVING PROBLEMS
Table 4-1 Service Notification error recovery procedures (continued)
Service Notification Suggested Recovery Procedure
Recoverable Error\
Retry the operation with another tape, making sure that the inserted tape was not
Unrecoverable Error written in VXA-1 format. If the problem persists, try power cycling the tape drive
to clear the error. If you cannot resolve the problem yourself, contact Tandberg
Data Technical Support (see “Contacting Tandberg Data” on page iv). To capture
a log of a problem, use VXATool, which is available as a free download from
Factory service
required
Power cycle the tape drive. If the problem persists, you may need to return the
tape drive for service; contact Tandberg Data Technical Support (see “Contacting
Tandberg Data” on page iv). To get a log of the problem, use VXATool, which is
Broken tape
Make sure there is not a source of bright light shining into the tape drive. Check if
the medium in the ejected cartridge is broken. If it is, discard the cartridge and
use a new cartridge.
Format recovery
The tape was written without a valid end-of-data mark, which often occurs if you
power-down the tape drive while the tape drive was writing. The tape drive will
perform a format recovery, which involves reading the data to determine where
the end of data is located. This may take as long as 2 to 3 hours. Allow the format
recovery operation to complete, and then press the eject button to unload the
cartridge. Avoid power-cycling the tape drive while a tape is loaded.
Temperature too high Refer to “LED 4 is Flashing Orange” on page 26 for troubleshooting information.
in tape path
Boot block mode
BACKUP APPLICATION IS REPORTING AN ERROR
Your backup application may report an error as a result of a failure to
communicate with the tape drive, a failure by the tape drive to write or read
data, or because of a software configuration issue.
Failure to communicate with the tape drive
Communication problems on the SCSI bus may be reported by the backup
application as resets, a loss of communication with the tape drive, failure to
detect the tape drive, I/O device errors, or parity errors. These types of errors
may occur intermittently. Most often, these issues are due to SCSI cabling and
termination problems.
ꢀUse VXATool to capture the diagnostic log from the tape drive immediately
after an error is reported by your backup application. Technical Support can
examine the log to determine the nature of the reported error. Refer to
“Capturing a Diagnostic Log” on page 31 for instructions.
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CHAPTER 4 TROUBLESHOOTING
Failure by the tape drive to write or read data
If your backup application reports a media error, one of the following
situations may have occurred:
Always try cleaning the tape drive before you assume the cartridge is bad.
Be sure to use a VXAtape Cleaning Cartridge.
ꢀThe cartridge needs to be replaced. Try using a different cartridge for the
backup, making sure that the tape is not written in VXA-1 format. Mark any
cartridge that fails. If you notice that the same cartridge results in multiple
failures, it may be time to replace the cartridge.
ꢀThe backup application has attempted to append data to a cartridge that
previously failed. If a write media error previously occurred on the tape, the
tape drive cannot append data at the point where the write media error
occurred. You can attempt to overwrite the tape, but any attempt to append
data will fail.
ꢀIf you are trying to write data, the cartridge may be write-protected. Check
switch does not cover the opening, the tape is write-protected. If the switch
covers the opening, you can write to the tape. Use a pen or small screwdriver
to move the switch.
ꢀIf you used an application other than your normal backup application to
write data to the tape, your backup application may report that it does not
recognize the tape. For example, if you have used VXATool to write and read
test data, the test tape will not be “recognized” by your backup application.
Perform a tape erase using either VXATool or your backup application.
Backup Application configuration issues
If you suspect an issue with the backup application configuration, use
VXATool to first confirm that the hardware is working properly. Run a
VXATool Write/Read test to verify that the tape drive is communicating over
the SCSI bus and that it can perform write and read operations. The readme
file that accompanies the program (or the online help for the Windows
version) provides instructions for using VXATool.
For any questions regarding software configuration, contact your software
provider.
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TROUBLESHOOTING WITH VXATOOL
TROUBLESHOOTING WITH VXATOOL
To troubleshoot problems with the tape drive, you can use the VXATool
diagnostic software. This program allows you to conduct diagnostic testing
and update the firmware. VXATool is available for a variety of operating
environments.
Download VXATool free of charge from the Support section of Tandberg
program (or the online help for the Windows version) provides instructions
for using VXATool.
Always check Tandberg Data’s web site to make sure that you have
the most current version of VXATool.
! Important
GETTING STARTED (IMPORTANT FIRST STEP)
Before running VXATool—completely shut down your backup application and
any services it may be running. The backup application may prevent
communications with the tape drive or may interrupt VXATool functions
resulting in their failure.
PERFORMING A WRITE/READ TEST
Use VXATool to perform a Write/Read test of the tape drive. The Write/Read
test verifies that the tape drive is communicating over the SCSI bus and that it
can perform write and read operations. Refer to the readme file or on-line help
available with the VXATool for detailed instructions.
UPDATING FIRMWARE
As improvements to tape drive firmware are made, they are made available for
to check the current version of firmware in your tape drive and to update the
firmware as needed.
CAPTURING A DIAGNOSTIC LOG
A diagnostic log is a snapshot of the tape drive’s current condition. If the tape
drive reports an error, use VXATool to capture the diagnostic log as soon as
possible after the error occurred. To ensure that the diagnostic log accurately
reflects the condition of the tape drive when the error occurred, avoid
disturbing the tape drive (for example, power-cycling, loading or unloading
tapes, or writing or reading more data) before capturing the diagnostic log.
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CHAPTER 4 TROUBLESHOOTING
GATHERING TROUBLESHOOTING INFORMATION FOR TECHNICAL SUPPORT
Before contacting Tandberg Data Technical Support, complete the following
steps to gather all of the required information. Having this information
available before you call Technical Support will allow your representative to
help you as efficiently as possible. When you have all of the required
Support.
VXA-320 TAPE DRIVE INFORMATION
ꢀSerial number. What is the tape drive’s serial number? The serial number is
Alternatively, you can use VXATool to display the tape drive serial number.
ꢀFirmware level. What version of firmware is currently loaded in the tape
drive? Use VXATool to display the current version of firmware in your tape
firmware. If your tape drive is not at the latest firmware level, use VXATool
to update the firmware.
ꢀTape drive configuration. Is the tape drive an internal model (installed in a
server); external model; or integrated within a library?
on page 20 for a description of the LED states.
SCSI BUS INFORMATION
ꢀSCSI host bus adapter make and model. What is the make and model of
SCSI host bus adapter connected to the tape drive? Make certain that the
LVD SCSI host bus adapter and any necessary drivers installed in the host
computer are compatible with the High-density, LVD tape drive. Tandberg
Data does not support using the tape drive on a RAID controller.
ꢀSCSI bus configuration. What is the configuration of the SCSI bus used by
the tape drive?
ꢀAre other SCSI devices attached to the SCSI bus?
ꢀWhat are the SCSI IDs of all devices attached to the same bus (both
internal and external devices)?
ꢀIs the SCSI bus terminated at the physical end of the bus?
ꢀWhat is the total SCSI cable length for all devices (both internal and
determining the total SCSI bus length for the internal tape drive and
page 15 for information about determining the total SCSI bus length for
the external tape drive.
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GATHERING TROUBLESHOOTING INFORMATION FOR TECHNICAL SUPPORT
ꢀCheck all SCSI cables connectors for bent pins and confirm that all
connectors are firmly seated.
OPERATING SYSTEM INFORMATION
ꢀOperating system. What operating system is being used? Are all current
patches installed?
ꢀDevice drivers. Are the appropriate drivers installed for the SCSI host bus
adapter? Refer to the installation instructions for your SCSI host bus adapter
card.
BACKUP APPLICATION INFORMATION
ꢀBackup application name and version. What backup application is being
used?
ꢀCompatibility. Does your application support the VXA-320 (VXA-3) tape
drive? Refer to the supported hardware devices list from the application
provider.
ꢀDevice driver. Is the appropriate driver installed for the tape drive? Refer to
the installation instructions for your backup application.
ꢀBackup application log files. Have the log files from your backup
application ready to send to Technical Support.
TAPE DRIVE DIAGNOSTIC INFORMATION
ꢀWrite/Read test results. Use VXATool and run a Write/Read test and then
capture the diagnostic log from the tape drive and save it to a file. Have the
diagnostic log file ready to send to Technical Support. Refer to the readme
file or on-line help available with the VXATool for detailed instructions.
If the VXATool Write/Read test reports an error, clean the tape drive and run
the test again on a new tape.
ꢀDiagnostic log taken after an error. Use VXATool to capture the diagnostic
log from the tape drive immediately after your backup application reports
an error.
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CHAPTER 4 TROUBLESHOOTING
NOTES
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RETURNING THE TAPE DRIVE FOR SERVICE
5
SERVICE AND MAINTENANCE
This chapter provides information about service and maintenance for the tape
drive, including:
ꢀReturning the tape drive for service
ꢀUpgrading firmware
ꢀObtaining a diagnostic listing
RETURNING THE TAPE DRIVE FOR SERVICE
If you need to return the tape drive to the factory for service, follow these
steps:
1. Before returning a tape drive for service, contact Tandberg Data Service (see
authorization and shipping instructions. If your service provider instructs
you to return the tape drive directly to Tandberg Data, contact Tandberg
Data Service to obtain a Return Materials Authorization (RMA) number and
the shipping address.
2. Remove and keep all cartridges, cables, and terminators.
If a cartridge is stuck in the tape drive, do not attempt to manually extract it.You
Caution
If necessary, contact Tandberg Data Technical Support for assistance.
3. When repacking and shipping a tape drive, use the original shipping carton
and packing materials (or replacement packaging obtained from Tandberg
Data) to avoid damaging the tape drive. The shipping and packaging
materials are not intended for shipping items other than VXA-320 tape
drives.
Tandberg Data is not responsible for shipping damage caused by an improperly
packaged tape drive.
Caution
To avoid damaging the tape drive and voiding your warranty, use the original
shipping materials (or replacement materials from your vendor).
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CHAPTER 5 SERVICE AND MAINTENANCE
UPGRADING FIRMWARE
You can obtain firmware for the VXA-320 tape drive from the Tandberg Data
web site or from Tandberg Data Technical Support. To upgrade the software,
you need to use VXATool, a diagnostic program used on the host computer for
configuring, troubleshooting, and upgrading firmware in the VXA-320 tape
drive over the tape drive’s SCSI interface. VXATool is available for a variety of
operating environments.
Download VXATool free of charge from the Support section of Tandberg
program (or the online help for the Windows version) provides instructions
for using VXATool.
Always check Tandberg Data’s web site to make sure that you have
the most current version of VXATool.
! Important
OBTAINING A DIAGNOSTIC LISTING
You can obtain a diagnostic listing (dump) from the tape drive using VXATool
(described in the previous section). You can download the VXATool program
accompanies the program (or the online help for the Windows version)
provides instructions for creating a diagnostic listing.
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COMMUNICATION INTERFACE VERSUS COMMAND PROTOCOL
6
COMMUNICATION INTERFACE
AND COMMAND PROTOCOL
This chapter provides an overview of the communication interface and
command protocol used by the VXA-320 (VXA-3) tape drive. It includes the
following topics:
ꢀCommunication interface versus command protocol
ꢀSCSI communication interface
ꢀSCSI interface requirements
ꢀSCSI command protocol
COMMUNICATION INTERFACE VERSUS COMMAND PROTOCOL
When a device is connected to a host computer, their interaction is
accomplished via a communication interface (for example, a parallel SCSI bus).
The communication interface is comprised of the physical interface (for
example, cables, connectors, and control circuitry) and the signaling protocol
used during communication.
The physical interface determines the number of devices that can be attached
to a bus or network loop, the maximum length of the cables, and the physical
characteristics of the cable itself (for example, the number of wires, shielding,
and so forth). The signaling protocol defines the electrical characteristics and
timing of signals carried by the cable, the message system requirements,
transmission speeds and maximum data transfer rates, as well as the encoding
and decoding of the individual bit patterns representing commands passing
between the individual devices.
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CHAPTER 6 COMMUNICATION INTERFACE AND COMMAND PROTOCOL
The format and content of the information carried over the communication
interface, as well as how each device uses and responds to the information, is
governed by a command protocol. The command protocol determines how the
host (or initiator) interacts with the target device (for example, the tape drive)
by issuing commands to control its operation, transferring data, and
responding to status information. The target device responds to commands
from the host by performing the requested operation (for example, writing or
reading data on magnetic tape) and returning status information.
The VXA-320 tape drive is available with a parallel SCSI communication
interface. This communication interface provides a method of passing SCSI
command descriptor blocks (CDBs) over an bus. The operation of the tape
drive is governed by the SCSI command protocol.
The following section describes how the SCSI communication interface is
implemented in the tape drive. “SCSI Interface Requirements” on page 40
describes the physical requirements of the SCSI bus. “SCSI Command
Protocol” on page 44 provides information about the SCSI command protocol
used by the tape drive. Refer to the VXA-320 (VXA-3) Tape Drive SCSI Reference
for detailed information about the SCSI communication interface and
command protocol.
SCSI COMMUNICATION INTERFACE
This section provides an overview of the SCSI communication interface used
by the VXA-320 tape drive.
SCSI BUS PHASES
Bus phases determine the direction and type of information transferred across
the data lines of the SCSI bus. The possible bus phases include Bus Free,
Arbitration, Selection, Reselection, and Transfer (which includes four subsets:
Message In or Message Out, Command Out, Data In or Data Out, and Status
Table 6-1 SCSI bus phases and information transfer phases
Bus Phase
Bus Free
Description
The Bus Free phase specifies that no device is using the bus.
Arbitration
Selection
The Arbitration phase allows devices to compete for access on the bus.
The Selection phase allows an initiator to select the tape drive for communication.
Reselection
The Reselection phase allows the tape drive to reconnect to the initiator after it
disconnects.
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SCSI COMMUNICATION INTERFACE
Table 6-1 SCSI bus phases and information transfer phases
Bus Phase
Transfer:
Description
The Message phases help manage the physical path between the initiators and targets.
ƒ Message In/
ƒ IntheMessageInphase, thetapedrivesendsamessagetotheinitiator. IntheMessage
Message Out
Out phase, the initiator sends a message to the tape drive.
ƒ Command
ƒ In the Command Out phase, the initiator sends a command to the tape drive.
Out
Commands contain information about what actions the tape drive should perform.
ƒ Data In/
ƒ In the Data In phase, the tape drive transfers data to the initiator. In the Data Out
Data Out
phase, the initiator transfers data to the tape drive.
ƒ Status In
ƒ In the Status In phase, the tape drive returns a status byte to the initiator. The status
byte indicates the results of the command’s execution.
SCSI MESSAGE SYSTEM
The SCSI message system allows communication between a SCSI initiator and
the VXA-320 tape drive for interface management. This message system or
command set is separate from the SCSI command protocol used to control the
operation of the tape drive. A message can be one byte or multiple bytes.
Table 6-2 SCSI messages supported by the tape drive
Hex
Message
Description
Code
Task
Complete
00h The tape drive informs the initiator that the execution of the command was
completed and that it sent a valid status byte to the initiator.
Extended
Messages
01h Synchronous Data Transfer Request (01h) The tape drive supports
synchronous data transfer.
Wide Data Transfer Request (03h) The tape drive supports wide data transfer.
Parallel Protocol Request (04h) The tape drive supports negotiating a
synchronous data transfer agreement, a wide data transfer agreement, and setting
the protocol options between two SCSI devices.
Save Data
Pointer
02h The tape drive requests that the initiator copy the current data pointer for possible
use by the Restore Pointers message during error recovery.
Restore
Pointers
03h The tape drive informs the initiator that it did not properly receive a block of data
or the command descriptor block (CDB) and that the data needs to be transferred
again.
Disconnect
04h The tape drive informs the initiator that it plans to disconnect from the SCSI bus
and that a reconnect will be required later.
Initiator
Detected
Error
05h The initiator informs the tape drive that an error occurred. The tape drive can retry
the operation.
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CHAPTER 6 COMMUNICATION INTERFACE AND COMMAND PROTOCOL
Table 6-2 SCSI messages supported by the tape drive (continued)
Hex
Code
Message
Description
Abort Task
Set
06h The initiator is clearing the present and any pending operation for that initiator.
When the tape drive accepts this message, it releases the bus into the Bus Free
phase.
Message
Reject
07h Either the initiator or the tape drive is indicating that the last message received was
inappropriate or not implemented.
No
Operation
08h The initiator informs the tape drive that it does not have a valid message to send
in response to the tape drive’s request for a message.
Message
Parity Error
09h The initiator informs the tape drive that one or more bytes in the last message it
received had a parity error.
Target Reset 0Ch The initiator instructs the tape drive to reset all of its current I/O operations. The
tape drive releases the SCSI bus into the Bus Free phase, with no operations
about resetting the tape drive.)
Ignore Wide 23h The tape drive sends the Ignore Wide Residue message to indicate that the
Residue
number of valid bytes sent was less than the negotiated transfer width.
Identify
80h This message is used to establish a physical path connection between the initiator
or
and the tape drive. It also indicates whether disconnect is supported and the LUN
C0h for which the command is intended. The tape drive supports a LUN of 0.
SCSI INTERFACE REQUIREMENTS
The VXA-320 tape drive is available with a wide, High-density (HD) 68-pin,
low-voltage differential (LVD) SCSI interface. This section provides general
information about the specifications for the tape drive’s Small Computer
System Interface (SCSI), including:
ꢀSCSI cable requirements
ꢀSCSI connector requirements
ꢀTerminator requirements
Although the tape drive’s High-density, 68-pin LVD SCSI
! Important
interface is compatible with both single-ended and narrow SCSI
buses, to avoid performance issues Tandberg Data does not
recommend using the tape drive on either of these buses.
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SCSI INTERFACE REQUIREMENTS
INTERNAL TAPE DRIVE
This section describes the cable, connector, and terminator requirements for
the internal High-density, 68-pin LVD SCSI tape drive.
SCSI Cable Requirements
The cable connected to the tape drive SCSI connector must meet the SCSI-3
Using a noncompliant SCSI cable will degrade VXA-320 performance and can
cause random, nonreproducible errors. Tandberg Data recommends using shielded
cables.
Caution
Table 6-3 SCSI cable and connector specifications
Specification
General
Requirement
Wide, LVD SCSI-3
Connector
High-density, 68-pin, male
Maximum lengtha 12 meters (39.2 feet)
ƒ No greater than 0.1 meters should be used off the mainline connection within any
Stub length
connected equipment.
ƒ The stub length within the tape drive is less than 2.5 centimeters (1 inch).
Impedance
Between 90 and 140 ohms.
An impedance of greater than 100 ohms is recommended. To minimize
discontinuities and signal reflections, all cables on the bus should have the same
impedance.
Conductor size
28 AWG (0.08097 mm2)
A minimum of 28 AWG will minimize noise effects and ensure proper distribution of
terminator power.
a
The maximum length of 12 meters only applies to an LVD SCSI bus. If a single-ended device is connected anywhere on the bus, all devices
on the bus operate in single-ended mode. When operating in single-ended mode, the maximum allowable bus length is 3 meters
(9.8 feet), terminator to terminator. Exceeding the maximum cable length will result in unstable and unpredictable operation.
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CHAPTER 6 COMMUNICATION INTERFACE AND COMMAND PROTOCOL
SCSI Connector Requirements
Table 6-4 Pin assignments for the wide LVD connector
Pin #
1
Signal
+DB (12)
+DB(13)
+DB(14)
+DB(15)
+DB(P1)
+DB(0)
+DB(1)
+DB(2)
+DB(3)
+DB(4)
+DB(5)
+DB(6)
+DB(7)
+DB(P)
GROUND
DIFFSENS
TERMPWR
TERMPWR
OPEN
Pin #
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
Signal
–DB (12)
–DB(13)
–DB(14)
–DB(15)
–DB(P1)
–DB(0)
–DB(1)
–DB(2)
–DB(3)
–DB(4)
–DB(5)
–DB(6)
–DB(7)
–DB(P)
GROUND
GROUND
TERMPWR
TERMPWR
OPEN
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
GROUND
+ATN
GROUND
–ATN
GROUND
+BSY
GROUND
–BSY
+ACK
–ACK
+RST
–RST
+MSG
–MSG
+SEL
–SEL
+C/D
–C/D
+REQ
–REQ
+I/O
–I/O
+DB(8)
+DB(9)
+DB(10)
+DB(11)
–DB(8)
–DB(9)
–DB(10)
–DB(11)
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SCSI INTERFACE REQUIREMENTS
SCSI Terminator Requirements
If the internal tape drive is the last device on the SCSI bus, you must terminate
the bus by installing an pass-through LVD/SE terminator on the tape drive’s
SCSI connector. Or, if there is an unused connector at the end of the SCSI
cable, you can terminate the bus there. If the cable provided with your adapter
has a built-in terminator, do not add another terminator to the bus.
Note: If you will be installing the tape drive in an enclosure and using an external
terminator, you must install a high-quality active LVD terminator that
complies with the SCSI-3 specification.
EXTERNAL TAPE DRIVE
This section describes the cable, connector, and terminator requirements for
the external LVD SCSI tape drive.
SCSI Cable Requirements
For the external tape drive, select a cable that complies with the SCSI-3
Table 6-5 SCSI cable requirements
Specification
Requirement
Connector type
Maximum lengtha
68-pin male, high-density, shielded, SCSI-3 compliant
12 meters (39 feet)b
a
The maximum length of 12 meters only applies to an LVD SCSI bus. If a single-ended device is connected
anywhere on the bus, all devices on the bus operate in single-ended mode. When operating in
single-ended mode, the maximum allowable bus length is 3 meters (9.8 feet), terminator to terminator.
Exceeding the maximum cable length will result in unstable and unpredictable operation.
b
If only two devices are attached to an LVD bus in a point-to-point configuration, the maximum allowable
cable length is 25 meters (82 feet).
SCSI Terminator Requirements
If the external tape drive is the last device on the SCSI bus, you must terminate
the bus by installing a high-quality active LVD/SE terminator that complies
with the SCSI-3 specification on one of the tape drive’s SCSI connectors.
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CHAPTER 6 COMMUNICATION INTERFACE AND COMMAND PROTOCOL
SCSI COMMAND PROTOCOL
This section provides an overview of the SCSI command protocol supported
by the VXA-320 (VXA-3) tape drive.
COMMAND SET
drive.
t
Table 6-6 SCSI command set
Operation
Code
Command
Description
ERASE
19h
Causes the tape drive to erase all data from the current location to
the end of partition.
INQUIRY
12h
Requests that information about tape drive parameters be sent to the
initiator.
LOAD/UNLOAD
LOCATE
1Bh
2Bh
Causes the tape drive to load or unload a cartridge.
Positions the tape at a specified logical position or changes partitions.
(Typically, this position is determined by data that was obtained
through a previous READ POSITION command.)
LOG SELECT
4Ch
Manages a set of internal counters regarding read and write error
recovery operations and amounts of data compressed. The initiator
can set threshold and cumulative values for the counters or reset the
counters.
LOG SENSE
4Dh
Returns the values of the counters managed by the LOG SELECT
command.
MODE SELECT
MODE SENSE
15h
1Ah
Allows you to specify medium, logical unit, and device parameters.
Enables the tape drive to report medium, logical unit, or device
parameters.
PREVENT/ALLOW
MEDIUM REMOVAL
1Eh
08h
05h
3Ch
34h
Allows or disallows the removal of the cartridge from the tape drive.
READ
Transfers one or more bytes or blocks of data from the tape to the
initiator.
READ BLOCK LIMITS
READ BUFFER
READ POSITION
Requests that the tape drive return data identifying the maximum
and minimum logical block lengths supported.
Creates a diagnostic listing of the tape drive’s current state or the
contents of the tape drive’s data buffer.
Reports the tape drive’s current logical position, but does not cause
tape motion to occur. Used in conjunction with the LOCATE
command.
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SCSI COMMAND PROTOCOL
Table 6-6 SCSI command set (continued)
Operation
Command
Description
Reports the results of the tests requested by a previous SEND
Code
RECEIVE
1Ch
DIAGNOSTIC
RESULTS
DIAGNOSTIC command.
RELEASE UNIT
17h
Releases the tape drive from exclusive use by the initiator that had
previously reserved it with a RESERVE UNIT command.
REQUEST SENSE
RESERVE UNIT
03h
16h
Requests that the tape drive transfer sense data to the initiator.
Reserves the tape drive for exclusive use by the initiator that issued
the command.
REWIND
01h
1Dh
11h
Causes the tape drive to rewind the tape to the logical beginning of
partition.
SEND
DIAGNOSTICS
Causes the tape drive to perform certain self-diagnostic tests.
SPACE
Enables the tape drive to perform forward or backward searches
using logical blocks, filemarks, or setmarks. Also allows spacing to
end of data (EOD).
TEST UNIT READY
VERIFY
00h
13h
0Ah
3Bh
10h
Allows you to determine if the tape drive is ready to accept an
appropriate medium access command.
Enables the tape drive to verify one or more logical blocks of data on
the tape.
WRITE
Transfers one or more bytes or blocks of data from the initiator to the
tape drive.
WRITE BUFFER
WRITE FILEMARKS
Transfers new microcode from the initiator into the tape drive’s
EEPROM.
Causes the tape drive to write any data remaining in its buffer, then
to write one or more filemarks or setmarks to tape.
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CHAPTER 6 COMMUNICATION INTERFACE AND COMMAND PROTOCOL
STATUS BYTES
After the tape drive executes a command, it issues a status byte to the initiator
describes the four status bytes supported by the tape drive.
Table 6-7 Status byte descriptions
Hex
value
Status byte
Description
Good
00h Indicates that the tape drive successfully completed the operation.
Check Condition
02h Indicates that an error, exception, or abnormal condition has caused sense
information to be set. The initiator can issue a REQUEST SENSE command
to access this information.
Busy
08h Indicates that the tape drive is busy. This status is sent whenever the tape
drive is unable to accept a command from an initiator.
Reservation Conflict
18h Indicates that the tape drive is reserved for the exclusive use of another
initiator.
SENSE KEYS
When the tape drive returns Check Condition status to the initiator, the
initiator can issue a REQUEST SENSE (03h) command to receive information
about the error, exception, or abnormal condition. This information includes a
describes the sense keys supported by the tape drive. Refer to the VXA-320
(VXA-3) Tape Drive SCSI Reference for a detailed explanation of the information
returned by the REQUEST SENSE (03h) command.
Table 6-8 Supported sense keys
Hex Description
Sense key
Value
No Sense
0h
1h
Indicates that there is no specific sense key information to be reported.
Recovered
Error
Indicates that the last command completed successfully with some recovery
action performed by the tape drive. Details may be available by examining the
additional sense bytes and the information field.
Not Ready
2h
3h
Indicates that the tape drive does not contain a data cartridge or that the data
cartridge is not loaded. Operator intervention may be required to correct this
condition.
Medium
Error
Indicates that the command terminated with a non-recoverable error condition
that may have been caused by a flaw in the tape or an error in the recorded data.
The tape drive may also return this sense key if it is unable to distinguish between
a flaw in the tape and a specific hardware failure (sense key 4h).
Hardware
Error
4h
Indicates that the tape drive detected a non-recoverable hardware failure (for
example a device failure or parity error) while performing the command or during
a self-test.
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SCSI COMMAND PROTOCOL
Table 6-8 Supported sense keys (continued)
Hex Description
Sense key
Value
Illegal
Request
5h
Indicates that there was an illegal parameter in the CDB or in the additional
parameters supplied as data for a command or that the tape drive is in the wrong
mode to execute the command. If the tape drive detects an invalid parameter in
the CDB, the tape is not written. If the tape drive detects an invalid parameter in
the additional parameters supplied as data, the tape may already be altered. This
sense key can also indicate an invalid Identify message.
Unit
6h
Indicates one of the following:
Attention
ƒ The tape drive has been reset (by a power-on reset, a Bus Device Reset message,
or a SCSI bus reset).
ƒ An initiator changed the MODE SELECT parameters since the last command
was issued to the tape drive.
ƒ The eject button was pressed and the data cartridge was ejected.
ƒ A data cartridge was inserted and automatically loaded.
ƒ The internal microcode (firmware) was changed.
ƒ A log parameter (counter) reached a specified threshold value (assuming that
RLEC bit on the MODE SELECT Control Mode page is set to 1).
This sense key is reported the first time any command is issued by each initiator
after the condition is detected, and the requested command is not performed.
This sense key is cleared when the next command other than INQUIRY or
REQUEST SENSE is received by the tape drive.
Data
Protect
7h
8h
Bh
Indicates that a command that writes to tape was attempted on a write-protected
data cartridge. The write operation is not performed.
Blank
Check
Indicates that the tape drive encountered blank tape or format-defined EOD
(blank tape) during a read, space, or locate operation.
Aborted
Command
Indicates that the tape drive aborted the command. This condition occurs when
an Initiator Detected Error (05h) message is received during command execution
or when a Message Reject (07h) or SCSI bus parity error is detected by the tape
drive during Command or Data Out phase.
The initiator may be able to recover by trying the command again.
Volume
Overflow
Dh
Eh
Indicates that the last WRITE or WRITE FILEMARKS command reached the
physical end of tape (PEOT) and that data may remain in the buffer.
Miscompare
Indicates that the source data did not match the data read from the tape.
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CHAPTER 6 COMMUNICATION INTERFACE AND COMMAND PROTOCOL
NOTES
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DATA CAPACITIES
7
SPECIFICATIONS
This chapter provides specifications for the VXA-320 tape drive. This chapter
provides the following specifications for the internal and tabletop models of
the tape drive:
ꢀData capacities
ꢀPerformance specifications
ꢀReliability specifications
ꢀSize and weight
ꢀPower specifications
ꢀEnvironmental specifications
ꢀShipping specifications
ꢀSafety and regulatory agency compliance
DATA CAPACITIES
by the VXA-320 tape drive.
Table 7-1 Data capacities in gigabytes (GB)
Cartridge
Modela
Capacity,b
Capacity,a
Tape Length
Native (GB)c
Compressed (GB)d
X23 or V23
X10
230 meters
124 meters
62 meters
160
86
320
172
80
X6
40
a
The VXA-320 (VXA-3) tape drive does not support VXAtape V6, V10, or V17.
b
Maximum capacity is obtained using VXA-320 (VXA-3) format; assumes the host computer keeps the tape
drive streaming.
c
One gigabyte equals 1,000,000,000 bytes.
d
Assumes a 2:1 compression ratio. Actual compressed capacity varies depending on the type of data being
recorded. The VXA-320 tape drive uses the ALDC (Adaptive Lossless Data Compression) algorithm and
integrated circuit chip. The ALDC algorithm is compliant with the European Computer Manufacturers
Association (ECMA) standard. Data compression is controlled by the software application. Enabling or
disabling the tape drive’s hardware compression is controlled by the backup application.
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CHAPTER 7 SPECIFICATIONS
PERFORMANCE SPECIFICATIONS
This section describes the performance specifications for the tape drive. The
tape drives are factory tested to these specifications using VXAtape XTape
media.
DATA TRANSFER RATES
achieve.
Table 7-2 Data transfer rates in megabytes per second
a, b
Read
Write a, b
Burst transfer rate
VXA-3 Format VXA-2 Format VXA-3 Format VXA-2 Format VXA-3 Format VXA-2 Format
12.0 MB/secc
6.0 MB/sec
12.0 MB/sec
4.5 MB/sec
160 MB/sec
160 MB/sec
a
Host matching.
b
When attached to a High-density LVD SCSI bus. All sustained data rates are dependent on the capabilities of the SCSI bus (for example, an
Ultra2 SCSI bus is limited to less than 40 MB/second).
c
One megabyte equals 1,000,000 bytes.
READ AND WRITE SPECIFICATIONS
Table 7-3 Read and write specifications
ƒ Reads and writes VXA XTape written by a VXA-2 tape drive.
ƒ Recognizes, then ejects VXA-1 formatted tapes.
ƒ Recognizes, then ejects VXAtape V6, V10, and V17 b.
Backward compatibility with
VXA-1 and VXA-2 tape drivesa
Compression
Bit error rate
Partitions
Buffer
ALDC (Adaptive Lossless Data Compression)
Less than 1x10 –17
2
8 megabytes (MB)
Error detection and correction 4 layer Reed Solomon
Format
Discrete Packet Format
ƒ 4 write heads
Heads (8)
ƒ 4 read/write check/read heads
ƒ VXAtape cartridges with Advanced Metal Evaporated (AME) media.
Data media
The tape drive ejects other types of media.
ƒ No formatting or conditioning required prior to use.
ƒ 30-year archival life.
a
The VXA-320 (VXA-3) tape drive can read or write VXA-2 formatted V23, X23, X10, or X6 tapes.
The VXA-320 (VXA-3) tape drive does not support VXAtape V6, V10, or V17.
b
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RELIABILITY SPECIFICATIONS
TAPE SPEED AND ACCESS TIME
The time required to move the tape to a specified position depends on the
the VXA-320 tape drive.
Table 7-4 Tape speed and access times
Search speed
165 x read/write speed (1 GB/second, native)
(maximum)
Mid-tape reposition
time (average)a, b
X6 cartridge: 75 seconds
X10 cartridge: 75 seconds
X23 or V23c cartridge: 120 seconds
Load time (logical)
45 seconds for an initialized tape
50 seconds for an uninitialized tape
Unload time (logical)
Tape speed
65 seconds
17.90 mm/second (typical)
a
In addition to maximum search speed, the mid-tape reposition times depend on acceleration,
deceleration, and read positioning to location.
b
c
The VXA-320 tape drive does not support VXAtape V6, V10, or V17.
The VXA-320 tape drive can read or write VXA-2 formatted V23 tapes.
RELIABILITY SPECIFICATIONS
Table 7-5 Reliability specifications
Mean Time Between Failures (MTBF) 300,000 hours
Mean Time to Repair (MTTR)
Service life
30 minutes
5 years
Write reliability
Read reliability
Bit error rate of less than 1x10-16
Bit error rate of less than 1x10-17
50,000 cycles, minimum
Loads/unloads
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CHAPTER 7 SPECIFICATIONS
SIZE AND WEIGHT
drives. The internal tape drive is a 5.25-inch form factor tape drive for
integration into an enclosure. The external tape drive is a standalone unit that
can fit on a desktop.
Table 7-6 Size and weight
Specification
Internal Tape Drive
External Tape Drive
Depth
41.5 mm (1.63 in)
86.0 mm (3.38 in)
Depth (with bezel) 42.6 mm (1.68 in)
Length
Width
203.0 mm (8.0 in)
146.0 mm (5.75 in)
285.0 mm (11.25 in)
227.0 mm (8.93 in)
Width (with bezel) 149.2 mm (5.87 in)
Weight 1.0 kg (2.2 lbs)
3.0 kg (6.6 lbs)
the dimensions of the external tape drive.
Note:Dimensions are shown in millimeters with inches in parenthesis.
146
(5.75)
203.0
(8.0)
5.3
(.208)
41.5
(1.63)
42.6
(1.68)
149.2
(5.87)
3
Figure 7-1 Physical dimensions of the internal tape drive
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POWER SPECIFICATIONS
226.8
(8.93)
285.8
(11.25)
85.85
(3.38)
3
Figure 7-2 Physical dimensions of the external tape drive
POWER SPECIFICATIONS
This section lists the power specifications for the VXA-320 tape drive.
INTERNAL TAPE DRIVE
The power specifications listed in this section are in addition to any
requirements for the enclosure in which it is installed.
Power Connector Pin Assignments
The VXA-320 power connector is compatible with power cables used for
standard 5.25-inch half-high devices. The enclosure’s power cable connector
assignments for the tape drive’s power connector.
Table 7-7 Pin assignments for the power connector
Pin
1
Assignment
+12 VDC
2
Ground, 12 VDC return
Ground, 5 VDC return
+5 VDC
3
4
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CHAPTER 7 SPECIFICATIONS
DC Voltages
The internal tape drive operates from standard +5 and +12 VDC supply
voltages (all specified voltages are DC, no external AC power is used).
Note: The VXA-320 tape drive does not provide overvoltage or overcurrent
protection, except for TERMPWR, which has a resettable fuse. Safety
agency certifications are based on the voltages being supplied by a Safety
Extra Low Voltage (SELV) source (per IEC 950).
Table 7-8 Power specifications (internal model)
Power
+5 Volts
±5%
+12 Volts
±10%
Required supply tolerance:
Ripple and noise: (50 Hz to 20 MHz)a
Operating current (amps)
Read or write:
250 mVpp max.
250 mVpp max.
1.25 (average) 1.27 (peak) 0.51 (average) 0.57 (peak)
1.11 (average) 1.22 (peak) 0.59 (average) 2.00 (peak)
1.00 (average) 1.20 (peak) 0.45 (average) 2.00 (peak)
0.90 (average) 1.17 (peak) 0.08 (average) 0.44 (peak)
Search/high speed:
Load/unload:
Power up:
Idle:
0.83 (average)
—
0.06 (average)
—
a
The ripple voltage is included in the total voltage tolerance.
Power Consumption
and when idle.
Table 7-9 Power consumption (internal model)
Power Consumption Power (average)
Read or write:
Search/high speed:
Load/unload:
Power up:
12.4 watts
12.7 watts
10.4 watts
5.5 watts
4.9 watts
Idle:
EXTERNAL TAPE DRIVE
The power specifications for the external tape drive include both the
requirements for the tape drive and the enclosure components.
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ACOUSTIC NOISE
Power Supply
The external tape drive uses an internal switching power supply. Do not
change any input settings. The power supply automatically adjusts for
changes in voltages and frequency within the specified range.
Table 7-10 Power supply specifications (external model)
Type
40 watts, switching
70% minimum
90 – 276 VAC
47 – 63 Hz
Efficiency
Input voltagea
Frequency
a
Autoswitching input selection; no user selection required.
Power Consumption
Table 7-11 Power consumption (external model)
AC input current
0.5 amp @ 115 VAC
0.25 amp @ 230 VAC
ACOUSTIC NOISE
Internal tape drive—
Table 7-12 Acoustic noise specifications (internal tape drive)
a
Operating Mode
Powered on, idle
Read or write
LpA
40 LpA
42 LpA
42 LpA
High-speed search or rewind (up to 2-minute duration)
a
The average A-weighted sound pressure level over the frequency range 5 Hz – 12.5 kHz.
External tape drive—When measured in the external enclosure, these levels
do not exceed the upper limits specified in the table.
Table 7-13 Acoustic noise specifications (external tape drive)
a
Operating Mode
LpA
Powered on, idle
40 LpA
43 LpA
43 LpA
Read or write
High-speed search or rewind (up to 2-minute duration)
a
The 30-second sustained average A-weighted sound pressure level over the following frequency range:
5 Hz to 12.5 KHz.
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CHAPTER 7 SPECIFICATIONS
ENVIRONMENTAL SPECIFICATIONS
This section lists the environmental specifications for the tape drive and the
cartridges.
ENVIRONMENTAL CONDITIONS FOR THE TAPE DRIVE
either the internal or external models of the tape drive. The following sections
provide additional detail about these requirements.
Table 7-14 Temperature and humidity specifications for the tape drive
Specification
Storagec/
Nonoperating
Operatinga,b
Transportingc
Temperature range
+5°C to +45°C (+41°F to +113°F)
–40°C to +60°C (–40°F to +140°F)
Temperature variation 1°C per min; max 10°C per hour
(2°F per min; max 18°F per hour)
1°C per min; max 20°C per hour
(2°F per min; max 36°F per hour)
Relative Humidity
Wet bulb
20% to 80% non-condensing
29°C (84.2°F) max.
5% to 95% non-condensing
N/A
Altitude
–304.8 to +3,048 m
(–1,000 to +10,000 ft)
–304.8 to +12,192 m
(–1,000 to +40,000 ft)
a
b
c
The tape drive temperature and humidity must be stabilized in the specified environment for at least 24 hours.
Temperature measurements are made in the tape path.
The tape drive is in its original shipping container. When the tape drive is moved from a cooler storage environment to a warmer operating
environment, it must acclimate in its packaging for 24 hours to prevent damage from condensation.
Internal Tape Drive: Operating Temperature and Humidity
Figure 7-3 provides the temperature and humidity requirements for the
internal tape drive. The area within the dotted line represents the operating
The operating temperature and humidity specifications are for the tape path.
Caution
When the tape drive is in an enclosure, the ambient temperature typically must be
lower than the maximum temperature to avoid exceeding the maximum at the
tape path.
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ENVIRONMENTAL SPECIFICATIONS
Figure 7-3 Internal model: Operating temperature and humidity ranges
Table 7-15 Internal model: Operating temperature and humidity points
Point
Temperatures
5°C
Humidity
80%
A
B
C
D
E
32°C
80%
45°C
32%
45°C
20%
5°C
20%
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CHAPTER 7 SPECIFICATIONS
External Tape Drive: Operating Temperature and Humidity
Figure 7-4 provides the ambient temperature and humidity requirements for
the external tape drive. The area within the dotted line represents the
of the external tape drive within these requirements will maintain the proper
tape path temperature of the tape drive.
C
D
Figure 7-4 External model: Ambient operating temperature and humidity ranges
Table 7-16 External model: Operating temperature and humidity points
Point
Temperatures
5° C
Humidity
80%
A
B
C
D
E
32° C
80%
37° C
32%
37° C
20%
5° C
20%
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ENVIRONMENTAL SPECIFICATIONS
Air Flow/Cooling Requirements
When mounted in the host enclosure, the tape drive must have adequate air
flow. Ensure that ambient air is allowed to pass through the ventilation holes
The air flow around the tape drive must be sufficient to prevent tape path
temperatures from exceeding 45 °C (113 °F).
The tape drive is equipped with a temperature sensor. It issues an
overtemperature signal through the LOG SENSE command if the above
temperature is exceeded. You can access temperature data through the LOG
SENSE command. See the VXA-320 (VXA-3) SCSI Reference Manual.
Particulate Contamination Limits
The VXA-320 tape drive is designed to operate in environments that do not
Table 7-17 Particulate contamination limits
Particle Size
(Microns)
Number of Particles >
Particle Size per Cubic Meter Particle Size per Cubic Foot
Number of Particles >
0.1
0.5
5.0
8.8 x 107
3.5 x 107
2.5 x 107
2.5 x 106
1.0 x 106
7.0 x 106
Shock Specifications
The storage and nonoperating shock levels indicate how much shock the tape
drive can withstand when it is not operating. The operating shock levels
indicate how much shock the tape drive can withstand while reading and
writing data. After withstanding this amount of shock, the tape drive operates
normally.
Table 7-18 Shock specifications
Operating
Nonoperatinga, b
Transportationc
5 g for 3 msecd
6 g for 11msece
60 g for 3 msec
50 g for 11 msec
ISTA Procedure 2A
a
The tape drive has been unpacked, but no power is applied.
b
Half-sine shock pulses are applied to each of the three orthogonal axes. (Three shocks at 60 g at a rate not
exceeding 1 shock per second. One shock at 50 g.)
c
The tape drive is in its original shipping container.
d
Half-sine, at a rate not exceeding 1 shock per second; 20 shocks applied to each of the three orthogonal
axes.
e
Half-sine, at a rate not exceeding 1 shock per every 3 seconds; 10 shocks applied to each of the three
orthogonal axes.
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CHAPTER 7 SPECIFICATIONS
Vibration Specifications
vibration the tape drive can withstand while reading and writing data.
Table 7-19 Vibration specifications
Random vibrationa applied during operation (reading and writing)
10 Hz to 500 Hz
PSD = 0.0005102 g2/Hz
Random vibrationb applied during non-operation (unpacked) and storage (in
original packaging)
1 Hz to 400 Hz
Vibration applied during shipping (in original packaging)
ISTA Procedure 2A
Swept sine applied during non-operationc and operatingd
5 to 500 to 5 Hzc
10 to 500 Hzd
a
A 0.5 Grms random vibration spectrum is applied to each of three orthogonal axes for a minimum of 30
minutes per axis.
b
A 1.06 Grms random vibration spectrum is applied to each of three orthogonal axes for a minimum of 20
minutes per axis.
c
Three sweeps at one octave per minute are applied to each axis at 0.75 g (peak) input.
One sweep at one-quarter octave per minute are applied to each axis at 0.5 g (peak) input.
d
ENVIRONMENTAL CONDITIONS FOR THE VXATAPE CARTRIDGES
cartridges. You should maintain the temperature and humidity at a steady
level within these ranges, and also limit fluctuations in temperature and
humidity.
Note: When a VXAtape is brought into the room where the VXA tape drive is
located, allow the VXAtape to adjust to room temperature and humidity
before using it.
Table 7-20 Temperature and humidity specifications for the VXAtape cartridges
Specification
Storagea/
Nonoperating
Transportinga
Temperature range
Temperature variation
Relative humidity
+5°C to +32°C
(+41°F to +90°F)
–40°C to +45°C
(–40°F to +113°F)
1°C per min; max. 20°C per hour
(2°F per min; max. 36°F per hour)
20% to 60%
non-condensing
5% to 80%
non-condensing
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PACKAGING AND SHIPPING SPECIFICATIONS
Table 7-20 Temperature and humidity specifications for the VXAtape cartridges
Specification
Storagea/
Nonoperating
Transportinga
Wet bulb
Altitude
26°C (79°F) max.
–304.8 to +3,048 m
(–1,000 to +10,000 ft)
–304.8 to 12,192 m
(–1,000 to 40,000 ft)
a
The cartridge is in its original packaging. When the cartridge is moved from a cooler storage environment
to a warmer operating environment, it must acclimate in its packaging for 24 hours to prevent damage
from condensation.
PACKAGING AND SHIPPING SPECIFICATIONS
This section describes the packaging and shipping requirements for the tape
drive.
SHIPPING CARTONS
The tape drive is sealed in a static protection bag and shipped in a single-pack
shipping cartons.
Table 7-21 Shipping carton weights and dimensions
Carton
Weight
Dimensions
Single Pack
Internal Tape
Drive
3 lbs, 4 oz (1.5 kg)
Length: 13.5 in. (34.3 cm)
Width: 10.75 in. (27.3 cm)
Depth: 8.5 in. (21.6 cm)
External Tape
Drive
12 lbs (5.4 kg)
Length: 21 in. (53.3 cm)
Width: 15 in. (38.1 cm)
Depth: 6.5 in. (16.5 cm)
Multipack: 10 Internal Tape Drives
10 Tape Drives 25.5 lbs (11.6 kg)
Length: 21.5 in. (54.6 cm)
Width: 16 in. (40.6 cm)
Depth: 14.5 in. (36.8 cm)
The shipping cartons and internal packing materials are designed so that the
enclosed tape drive does not receive a damaging shock when the carton is
dropped on any surface, corner, or edge from a height of:
ꢀSingle-pack: 48 in. (121.9 cm), at a velocity change of 192 in./sec (488 cm/sec)
ꢀMultipack: 36 in. (91.4 cm), at a velocity change of 167 in./sec (424 cm/sec)
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CHAPTER 7 SPECIFICATIONS
PACKAGING MATERIALS
The tape drive’s packing materials are unbleached, reusable, recyclable, and
environmentally safe. The materials contain no chlorofluorocarbons (CFCs) or
heavy metals. The shipping cartons pass the tests described in the
International Safe Transit Association (ISTA) Procedure 2A.
SAFETY AND REGULATORY COMPLIANCE
The VXA-320 (VXA-3) tape drive complies with the regulatory agency
standards listed below when installed in accordance with this manual.
The system integrator is responsible for the certification and verification of the
final product into which the VXA-320 (VXA-3) tape drive is integrated, with
the relevant product safety, and EMI and EMC standards.
UNDERWRITERS LABORATORY
The internal configuration has been evaluated by UL for use in listed finished
products. Construction or performance of these components may not warrant
listing of the devices on their own. Recognized components may be used in listed
products, provided that they are applied within the conditions of acceptability
stated in the report.
The external configuration of the VXA-320 (VXA-3) tape drive is listed by
Underwriters Laboratories, Inc. Representative samples of this product have been
evaluated by UL and meet the applicable U.S. and Canadian safety standards.
TUV PRODUCT SERVICE
Signifies that the VXA-320 (VXA-3) internal tape drive has been tested in
accordance with EN 60950-1:2001 and has met the applicable product safety
requirements.
The TUV Mark for the VXA-320 (VXA-3) external tape drive demonstrates that it
has met the requirements of EN 60950-1:2001.
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SAFETY AND REGULATORY COMPLIANCE
UNITED STATES: FCC DECLARATION OF CONFORMITY
We declare under our sole responsibility that:
Product Name: VXA-320 (VXA-3) Tape Drive
Model Numbers: VXA-320i (internal); VXA-320e (external)
Product Options: All
To which this declaration relates, is in conformity with the following standard(s) or
other normative documents:
ANSI C63.4-1992 Methods of Measurement
Federal Communications Commission 47 CFR Part 15, Subpart B
15.107 (a) Class B Conducted Limits
15.109 (a) Class B Radiated Emission Limits
This device complies with Part 15 of the FCC Rules. Operation is subject to the
following two conditions: (1) This device may not cause harmful interference, and
(2) This device must accept any interference received, including interference that
may cause undesired operation.
Note: This equipment has been tested and found to comply with the limits for a
Class B digital device, pursuant to part 15 of the FCC Rules. These limits
are designed to provide reasonable protection against harmful interference
in a residential installation. This equipment generates, uses and can radiate
radio frequency energy and, if not installed and used in accordance with
the instructions, may cause harmful interference to radio communications.
However, there is no guarantee that interference will not occur in a
particular installation.
If this equipment does cause harmful interference to radio or television
reception, which can be determined by turning the equipment off and on,
the user is encouraged to try to correct the interference by one or more of
the following measures:
ƒ Reorient or relocate the receiving antenna.
ƒ Increase the separation between the equipment and receiver.
ƒ Connect the equipment into an outlet on a circuit different from that to
which the receiver is connected.
ƒ Consult the dealer or an experienced radio/TV technician for help.
ƒ Shielded cables are required for this device to comply with FCC Rules.
Use shielded cables when connecting this device to others.
CANADIAN VERIFICATION
This Class B digital apparatus complies with ICES-003.
Cet appareil numérique de la classe B est conforme à la norme NMB-003 du
Canada.
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CHAPTER 7 SPECIFICATIONS
EUROPEAN COMMUNITY
This Information Technology Equipment has been tested and found to comply with
the following European directives:
(1) EMC Directive 89/336/EEC, amended by directive 93/68/EEC, according to:
EN55022
EN55024
EN61000-3-2
EN61000-3-3
(2) Low Voltage Directive 73/23/EEC, amended by directive 93/68/EEC, according
to: EN60950-1:2001
JAPAN
This equipment is Class B (Information Technology Equipment to be used in a
residential area or an adjacent area thereto) and conforms to the standards set by
the Voluntary Control Council for Interference (VCCI) by Information Technology
Equipment aimed at preventing radio interference in such residential area.
When used near a radio or TV receiver, it may become the cause of radio
interference. Read instructions for correct handling.
AUSTRALIA AND NEW ZEALAND
This device has been tested and found to comply with the limits for a Class B digital
device, pursuant to the Australian/New Zealand standard AS/NZS 3548 set out by
the Australian Communications Agency.
TAIWAN
This device has been tested and found to comply with standard CNS 13438, Class
B for Electromagnetic Compatibility (EMC) as established by the Taiwan Ministry of
Economic Affairs (MOEA), Bureau of Standards, Metrology and Inspection (BSMI).
RESTRICTION OF HAZARDOUS SUBSTANCES IN ELECTRICAL AND ELECTRONIC EQUIPMENT
(ROHS)
The VXA-320 (VXA-3) internal tape drive is in compliance with European Council
Directive 2002/95/EC, on the restriction of the use of certain hazardous substances
in electrical and electronic equipment.
The VXA-320 (VXA-3) external tape drive will be in compliance with this Directive,
prior to the July 1, 2006 deadline.
WASTE OF ELECTRONIC AND ELECTRICAL EQUIPMENT (WEEE)
This device is in compliance with 2002\96\EC Waste of Electronic and Electrical
Equipment (WEEE).
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GLOSSARY
G
GLOSSARY
A
Adaptive Lossless Data Compression (ALDC) An advanced data compression
algorithm that provides an average compression ratio of 2:1 across multiple
Advanced Metal Evaporated (AME) media A state-of-the-art tape technology
designed for data storage. VXAtape cartridges use AME media.
American National Standards Institute (ANSI) Organization that sets
standards for SCSI and the safety of electrical devices.
B
Bit error rate (BER) The probability that a transmitted bit will be received in
error. The BER is expressed as a ratio of error bits to total number of bits.
Buffer A temporary storage area, usually in Random Access Memory (RAM).
The tape drive’s read and write buffers act as holding areas that enable the
tape drive to balance the rate at which it transfers data to or from tape with the
data transfer rate of the host. The VXA-320 tape drive has a 16-MB buffer.
Bus In a network, the electrical pathway between a computer and other
devices.
C
CAW-After-Write (CAW) A process that improves data integrity by reading
data immediately after it is written and writing the packet again if an error is
found. Individual packets are rewritten as necessary, optimizing speed and
capacity.
Compression The reduction in size of data to save space. Either the backup
application or the tape drive can perform compression. See also Adaptive
Lossless Data Compression (ALDC).
Cyclic redundancy check (CRC) The error detection technique that checks
for uncorrected data during a read operation.
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GLOSSARY
D
Data Transfer Rate The speed that data can be transmitted from one device
to another. Data rates are often measured in megabits (million bits) or
megabytes (million bytes) per second.
Discrete Packet Format (DPF) The format used by the VXA-320 (VXA-3) tape
drive to read and write data in packet form. Data packets also contain a
synchronization marker, unique address information, CRC, and ECC.
Driver A program that works with a computer’s operating system to operate
a peripheral device. Also referred to as a “device driver.”
E
End of data (EOD) In a partition, a special format group that is written after
all current user data is transferred to the tape.
Error correction code (ECC) Error correction codes are generated within the
tape drive and recorded with the user data. ECC is used to correct the errors in
the user data while being read.
Exabyte (1) A network storage backup company that designs, manufactures,
and markets industry-leading data storage products including tape drives and
automated tape libraries.
(2) measurement of data:
One Exabyte = 1,000 Petabytes, or
1,000,000 Terabytes, or
1,000,000,000 Gigabytes, or
1,000,000,000,000 Megabytes, or
1,000,000,000,000,000 Kilobytes, or
1,000,000,000,000,000,000 bytes
F
Filemark A mark on the tape, which is written by the tape drive. A filemark
consists of a special recorded element within a partition, containing no user
data, which provides a segmentation or location scheme for the data on the
tape. Filemarks are typically used during a locate or space operation to move
to a particular spot on the tape.
G
Gigabyte One billion bytes.
H
Head A device that uses induction to write a data pattern onto magnetic
media and then uses either inductance or magnetoresistance to read the data
back.
Host Any type of computer that sends information or commands to a
peripheral device, such as the tape drive.
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GLOSSARY
I
Initiator A SCSI device containing application clients that originate device
service requests to be processed in a device server. The host typically acts as
the initiator of commands.
L
LED Light Emitting Diode. The indicators on the front panel of the tape
drive.
Load The process of inserting a cartridge into the tape drive. The tape drive
automatically loads the tape into the tape path.
Low Voltage Differential (LVD) A differential SCSI interface that allows bus
lengths up to 12 meters, transfer rates up to 160 MB/sec., and allows
single-ended devices to co-exist on the bus.
M
msec Millisecond; one-thousandth of a second.
Mean Time Between Failures (MTBF) A quantitative measure used to specify
the reliability of a tape drive’s mechanics and electronics as a whole under
specific environmental conditions, cleanings, and duty cycle.
Megabyte One million bytes.
N
Noise Any kind of magnetic or electric interference detected by the
electronics.
O
OverScan Operation (OSO) The VXA technique for reading data packets
independently of track shape or geometry. By reading packets with multiple
scans, OSO ensures that each packet is read at least once.
P
Packet The basic VXA format structure that includes data, ECC, and address
and synchronization information.
Partition A self-contained area on a tape that can be written and read
independently to make more efficient use of the media. The VXA-320 (VXA-3)
tape drive accommodates two partitions.
Peripheral Device Any device attached externally to a computer as an
optional device, such as tape drives, printers, scanners, and so forth.
Power Cycle (1) Turn the tape drive off, wait for 10 seconds, then turn the
tape drive back on. Wait for the tape drive to go through its Power-on Self-test
(POST).
(2) If you are required to power cycle the tape drive due to overheating, allow
it to cool for several minutes before turning it back on (see “LED 4 is Flashing
Orange” on page 26 for additional information).
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GLOSSARY
R
RAID Controller A Redundant Array of Independent Disks Controller is a
collection of disk drives that employs two or more drives in combination for
fault tolerance and performance.
Read-After-Write (RAW) A process that improves data integrity by reading
data immediately after it is written and writing the packet again if an error is
found. Individual packets are rewritten as necessary, optimizing speed and
capacity.
RoHS The RoHS Directive mandates that electrical and electronic products
put in the market within the European Union (EU) shall contain restrictive
levels of the following substances:
ꢀLead (Pb)
ꢀCadmium (Cd)
ꢀMercury (Hg)
ꢀHexavalent Chromium (Cr6+)
ꢀPolybrominated Biphenyls (PBB)
ꢀPolybrominated Diphenyl Ethers (PBDE)
S
SCSI Small Computer System Interface. A device interface that has been
certified as an American National Standard by ANSI. The standard contains
the electrical specifications, communication protocol, and command structure
necessary to connect various computer peripherals to a host computer.
SCSI ID A unique address assigned to each device attached to a SCSI bus. See
Segment The format structures contained within the data buffer. Each
segment contains 1,220 packets of data, ECC, and CRC information.
Setmark A mark written by the tape drive to allow fast searching to a point
on the tape without having to know the number of records or filemarks that
precede the point. A setmark is a special recorded element within a partition,
that contains no user data, and provides a segmentation scheme hierarchically
superior to filemarks for use in addressing or fast positioning on high-capacity
storage devices (also called Save-Set Mark).
Streaming An operational mode that occurs when the data transfer rate to or
from the host closely matches the tape drive’s data transfer rate, allowing the
tape drive to read or write data in a continuous stream.
T
Termination In SCSI, termination refers to placing a resistor (terminator) at
both physical ends of the SCSI bus to prevent signal reflection.
Transfer rate The transmission speed of a communications line. The tape
drive transfer rates are measured in megabytes per second (MB/sec).
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GLOSSARY
V
Variable Speed Operation (VSO) The VXA technique for adjusting tape
motion to match the host transfer rate, eliminating “backhitching.” This
technique optimizes backup and restore times, while enhancing media and
tape drive reliability.
Volume A recording medium together with its physical carrier (a single tape
cartridge).
VXA VXA is a breakthrough tape technology that offers previously
unobtainable levels of reliability, data availability and interchange, and
recoverability, capacity and interchangeability. This is accomplished through
the exclusive combination of OverScan Operation (OSO), Variable Speed
Operation (VSO) and Discrete Packet Format (DPF).
VXATool A diagnostic program used on the host computer to configure,
troubleshoot, and upgrade firmware in the VXA-320 (VXA-3) tape drive over
the tape drive’s SCSI interface.
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GLOSSARY
NOTES
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INDEX
INDEX
bezel components
Bus Device Reset
A
AC power connector, location
agency declarations
Bureau of Standards, Metrology and
FCC 63
See messages, Target Reset
C
capacities 49
cartridges
RoHS 64
Voluntary Control Council for Interference
(VCCI) 64
capacities 49
WEEE 64
See also cartridges
application software
cleaning 23
compatibility 50
loading 22
retiring 23
specifications 50
unloading 22
See backup application
using 22
auxiliary connector (internal tape drive),
cleaning
location
instructions 23
See also SCSI commands
communication interface
definition 37
B
backup application
compatibility 18
backup software
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INDEX
compatibility
error recovery procedures, for Service
components, back panel
Extended Messages (01h) message
Synchronous Data Transfer Request
(01h) 39
external SCSI model
internal tape drive
external tape drive, installing the SCSI tape
components, front panel
compression 50
connectors, back panel
external tape drive
internal tape drive
F
See also AC power connector
See also auxiliary connector
See also power connector
See also SCSI connectors
See also serial connector
Fast-80 DT SCSI
See High-density (HD) SCSI
cooling 59
front panel
See components, front panel
D
G
grounding hole and tab (internal model)
diagnostic port, location (external model)
location
H
High-density (HD)
door
location
humidity, specifications
E
eject button
I
location
ID switch
See SCSI ID switch
error
J
jumpers
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See also SCSI ID jumper block
O
on/off switch
See power switch
L
labels
identification and configuration
LEDs
operating system
compatibility 18
location
P
part number for tape drive, locating
M
media
pin assignments
See cartridges
messages
power cable
power connector
location (external model)
location (internal model)
power LED, location (external model)
power specifications
AC power consumption, external tape
drive 55
power connector requirements, internal tape
drive 53
model number
models
mounting configurations for the internal
model 12
power switch (external model)
product identification, changing for software
compatibility 18
R
N
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INDEX
connector locations (external model)
connector locations (internal model)
SCSI terminator
requirements 43
RF service connector, internal model
S
serial connector, location (external model)
serial number for tape drive
service connector, internal model
Service Notification LEDs
description 20
SCSI bus
determining total bus length for internal tape
terminator requirements, external tape
drive 43
terminator requirements, internal tape
drive 43
SCSI cable
software
See backup software
SCSI command protocol
SCSI connectors
speed 50
storage environment
cartridges 23
location (external tape drive)
location (internal tape drive)
specifications for internal tape
T
tape
See cartridges
SCSI ID
jumper block location (internal model)
SCSI ID switch location (external)
tape drive
integrating 18
setting using SCSI ID jumper block (internal
model) 10
setting using SCSI ID switch (external
model) 15
operating system and software
compatibility 18
operating temperature and
SCSI tape drive
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INDEX
unpacking
Technical Support
V
contacting iv
voltage specifications 55
voltages, DC power 54
gather required information before
temperature range specifications
VXAtape
termination, SCSI bus
See cartridges
W
warranty
limited warranty terms 77
wet bulb, humidity specification
U
Ultra160 SCSI
Ultra3 SCSI
See High-density (HD) SCSI
unload button
See eject button
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INDEX
Notes
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