ACS-77100 RAID controller
User Manual
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User’s Manual
5.1. Firmware updating steps ..................................................................................23
6. Trouble Shooting.......................................................................................................26
7. FAQ..........................................................................................................................27
8. Contact Accusys........................................................................................................28
Accusys, Inc...........................................................................................................28
Accusys U.S.A., Inc.................................................................................................28
Accusys China, Inc..................................................................................................28
Accusys EU B.V ......................................................................................................29
Accusys Korea, Inc. ................................................................................................29
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Preface
Notice
Product features and specifications described in this manual are subject to change without
notice.
The manufacturer shall not be liable for any damage, or for the loss of information resulting
from the performance or use of the information contained herein.
Trademarks
Accusys and the names of Accusys products and logos referenced herein are trademarks and/or
service marks or registered trademarks and/or service marks of Accusys, Inc.
Microsoft, Windows, Windows NT, MS-DOS are either trademarks or registered trademarks of
Microsoft Corporation. Intel and Pentium are registered trademarks of Intel Corporation. Other
product and company names mentioned herein may be trademarks and/or service marks of
their respective owners.
All contents of this manual are copyrighted by Accusys. The information contained herein is the
exclusive property of Accusys, Inc. and shall not be copied, transferred, photocopied, translated
on paper, film, electronic media, or computer-readable form, or otherwise reproduced in any
way, without the express written permission of Accusys Inc.
Manual version 1.0
© Copyright 2006 Accusys, Inc.
All rights reserved.
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About This document
This document discusses how to properly design your RAID solution when using the ACS-77100
RAID controller, and guides you to configure the RAID controller. Customer should have a
working knowledge of RAID planning and data storage.
Symbols used in this document
Important information that users should be aware of is indicated with the following icons:
Caution
This icon indicates the existence of a potential hazard that
could result in personal injury, damage to your equipment or
loss of data if the safety instruction is not observed
Note
This icon indicates useful tips on getting the most from your
RAID controller.
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1. Introduction to the ACS-77100
1.1. Overview
The ACS-77100 RAID controller provides RAID 0 (striping), RAID 10 (Striping and mirroring)
and RAID 5 (striping with parity) for you to construct a disk array optimized for performance or
reliability. By connecting the SATA cables between the ACS-77100 and the disks, a RAID
solution can be easily built.
The ACS-77100 controller is equipped with Java-based GUI (graphical user interface)
monitoring program, by which users can easily monitor the RAID status from web browsers at a
remote site. The monitoring program is also capable of sending out notification mail to users so
that users can always be informed of the updated status of the device.
1.2. System Structure
An internal or external RAID subsystem can be built by integrating RAID controller (with LCD
module), back-plane (or disk board for disk hot-swapping), connectors for out-band connection
(eSATA/SATA host connector, DB9 connector for COM port), a selector for RAID level
configuration, power supply, fan and all internal cables. Customer should provide the materials
beside the RAID controller.
PWR1 Power connector CN4 Button connector CN7 Host I/F
CN2 BP I/F (LED, I2C) CN5 Disk I/F
CN3 LCD connector CN6 Dick I/F
CN8 COM and RAID configuration I/F
CN9 FAN connector
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1.3. Understanding RAID Levels
1.3.1. RAID 0 (striping)
RAID 0 links each drive in the array to from one large drive.
Storage capacity is determined by the smallest drive in the array.
This capacity is then applied to format all other drive in the
array.
When using a 40GB, 50GB and a 60GB drive in a RAID 0 array,
your system will have, in effect, one 120GB drive (40GB x 3)
The diagram above represents the writing of data on a RAID 0
array composed of four disks connected to the controller. Data
block are distributed across all disks in the array.
Characteristics
ƒ
ƒ
ƒ
RAID 0 implements a striped disk array, the data is broken down into blocks and each
block is written to a separate disk drive.
I/O performance is greatly improved by spreading the I/O load across many channels and
drives.
Fastest and most efficient array type but offers no fault-tolerance.
Recommended Uses
ƒ
ƒ
ƒ
ƒ
Video production and editing.
Image editing.
Pre-press applications.
Applications requests high-bandwidth.
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1.3.2. RAID 10 (striping and mirroring)
RAID 0+1 combines mirroring and striping functions on a minimum
of four hard disks. Mirroring provides full redundancy and protects
data in case of multiple drive failure (providing that data on one of
each mirrored pair of drives is intact).
The diagram shown represents the writing of data on a RAID 0+1
array composed of four DISKS connected to the controller. The
controller creates two matching RAID 0 arrays on four DISKS
Characteristics
ƒ
ƒ
This configuration provides optimal speed and reliability.
Requires even number of disks (minimum 4 disks)
Recommended Uses
ƒ
ƒ
Imaging application.
General Fileserver.
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1.3.3. RAID 5 (striping with parity) and RAID 5+hot spare
RAID 5 uses a mathematical expression that compares data from
three drives and calculates a fourth piece of data called “parity”
which is saved on a fourth drive. Should one of the drives failed,
parity data can be used to rebuild the failed data. Under RAID 5,
parity data is stored across all drives in the array. This maximizes
the amount of storage capacity available from all drives in the
array while still providing data redundancy. RAID 5 requires at
least three drives. The ACS-77100 allows user to set RAID 5 with
three drives and the fourth drive as a hot-spare drive ready to be
used for rebuilding data in case one of the other drives fails.
The diagram above represents the writing of data on a RAID 5 array composed of four disks
connected to the controller. Parity blocks are represented by the letter P
Characteristics
ƒ
Each entire data block is written on a data disk. Parity for blocks in the same rank is
generated on Writes, recorded in a distributed location and checked on Reads.
Highest Read data transaction, medium Write data transaction rate.
Relatively low ratio of ECC (Parity) disks to data disks means high efficiency (compared to
other RAID levels).
ƒ
ƒ
ƒ
Good aggregate transfer rate.
Recommended Uses
ƒ
ƒ
ƒ
ƒ
File and application servers.
Database servers.
Web, Email servers.
Internet server
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2. Build a RAID Solution
This chapter covers the installation of the ACS-77100. The customers will be guided to using
ACS-77100 to build a RAID solution.
2.1. Hardware Requirement:
„
„
„
„
„
„
„
ACS-77100 RAID controller
Backplane or Disk I/O board
Disk carriers (with LED Indicators)
Power supply
Fan module
Chassis
Other materials
„
„
„
„
SATA disk cable
Header to DB9 cable
SATA to eSATA internal cable
Selector (with header connector + cable)
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2.2. LCD Panel Operations
The LCD messages are displayed on the screen of LCD panel for system status.
Access LED
Power LED
▲: Scroll up button ▼: Scroll down button ENT: Enter button ESC: ESC button
Scroll up button: to scroll up message data.
Scroll down button: to scroll down message data.
Enter button: to confirm or enter your selection.
ESC button: back to the top layer of message data.
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3. Set up the RAID solution
This chapter covers the configuration of the ACS-77100. Through an easy process, the
customers will be guided to configure the ACS-77100 through the following steps:
Step 1 3.1. Setting the RAID level – The ACS-77100 is per-configured at RAID level 5, but
you have the option of customizing your RAID level in this step
Step 2 3.2. Creating an Array – The disks in ACS-77100 will be used to create an array, by
which you can partition and use the storage.
Step 3 3.3. Setting the Date and Time – Configure your ACS-77100 for your local use.
Step 4 3.4. Connecting to a Host computer – Connecting the ACS-77100 to your host
computer through eSATA interface.
Step 5 3.5. Formatting and Partitioning the ACS-77100 – This section details the process for
formatting and partitioning the ACS-77100 on Windows operating system.
3.1. Setting the RAID Level
The RAID level of ACS-77100 is set using jumper heads on the RAID Configuration Interface
(Pin1, 3, 5, 7 of the CN8). The four possible combinations of the jumper position correspond to
the four available RAID settings: 0, 0+1, 5 and 5+spare.
Caution
The ACS-77101 must be powered off to change the
RAID level.
Caution
If there is data on the array, changing the RAID level
will cause loss of all the data on the array.
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3.1.1 RAID Level configurations
RAID Level 5
Pin1-3 is open.
Pin5-7 is open.
RAID Level 0
Pin1-3 is short.
Pin5-7 is short.
RAID Level 10
Pin1-3 is short.
Pin5-7 is open.
RAID Level 5 + spare
Pin1-3 is open.
Pin5-7 is short.
Note
If the RAID level is not matched between the disk setting and the RAID level
selector setting, the LCD will display the following two messages alternatively:
(1) “RAID level”
“Unmatched”
(2) “Current: R(X)” (i.e. the current RAID level setting of RAID level selector.)
“Original: R(Y)” (i.e. the original RAID level setting of the installed disks.)
Solution:
At this situation, RAID cannot work, users should choose one of the following
options :
(1) Shut down and tune the RAID level selectors to R(Y).
(2) Re-plug the four disks and re-create the Array to R(X). (But data in the RAID
will be lost due to the destructive initialization )
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3.2. Creating an Array
3.2.1 Enable/Disable Over 2TB capacity
ACS-77100 supports over 2TB capacity. The steps below will guide you to enable/disable over
2TB capacity.
1. Select scroll button to find the capacity setting item on LCD panel. (P.18, 4.1.2. Set over
2TB capacity Messages )
2. Press the ENT button, and select (YES) or (NO) by the scroll buttons.
Note
If you want to create the array with over 2TB capacity, the
setting must be finished before to create an array.
3. Press the ENT button to confirm the setting.
3.2.2 Creating an Array
The steps below will guide you to create an array on the ACS-77100.
1. Configure RAID level.
2. Power on the ACS-77100 without disks installed.
3. Install 4 disks on ACS-77100.
4. After ACS-77100 recognized all disks. A message「Create New RAID?」will be displayed
on the LCD panel.
5. Select 「YES」by the scroll buttons and press the ENT button to create array.
Note
During the RAID-creating procedure, the percentage of RAID
initialization progress will be displayed on the LCD panel.
Note
The initialization process is a time-intensive process and is
dependent upon the size of the disks. For example, four 400GB
disks in a RAID 5 array could take over about two hours.
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Note
The device over 2TB capacity should be supported by
Operation System (e.g. Windows Vista). Please refer to section
3.5. Formatting and Partitioning the ACS-77100 to
partition the device.
3.3. Setting the Time and Date by LCD
To change the time and date on the LCD, press and hold the ENT button for five seconds.
Release the button to display the date and time setting screen.
To adjust the time and date values, use the Scroll buttons to change the values. (Figure 3.3.A)
Press the ENT button to confirm your selection and move to next value.
Start by adjusting the year (YY), then move to the month (MM), the day (DD), and finally the
hour (HH) and minute (MM).
Pressing the ENT button on the final selection will set the time and date. The Time and Date
will be displayed on the LCD during ACS-77100 stand-by mode. (Figure 3.3.B)
Note
The time is measured in the 24-hour clock format.
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3.4. Connecting ACS-77100 to the Host computer
1. Follow the steps on page 11, 3.1. Setting the RAID Level and 13, 3.2. Create an Array to
establish a RAID.
2. Connect an end of the eSATA cable into the eSATA port on the ACS-77100 RAID subsystem.
3. Connect the other end of the eSATA cable into the eSATA port on the host computer.
It will take a few seconds for the host computer to recognize the drive for it to appear in My
Computer or on the desktop.
The ACS-77100 RAID subsystem will now need to be formatted. Go to next step 3.5.
Formatting and Partitioning the ACS-77100 for more information.
3.5. Formatting and Partitioning the ACS-77100
Before the ACS-77100 array can be fully utilized, it needs to be formatted. During this process,
the array can also be customized with partition. As you format the drive, you will have the
opportunity to divide the hard drive into sections, called partitions. A partition is a section of the
hard drive’s capacity that is created to contain file and data.
3.5.1. Windows Users
Caution
Before beginning the format and partition, make sure there are no
any warning or error message being displayed on the ACS-77101
After having followed the steps to set the RAID level, create an array and connect the interface
cable to the host computer, the ACS-77100 must now be formatted and partitioned before it
can be used.
1. Right click My Computer and click Manage.
2. From the Computer Management window, select Disk Management. (Figure 3.5.1.A)
3. If the Initialize and Convert Disk Wizard window appears, click Cancel.
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4. Windows operation system will list all the hard drives that are installed on the system.
Locate the ACS-77100 drive that is represented by the
icon. Right click the icon and
select Initialize.
5. In the drive box to the right shows Unallocated, right click and select New Partition.
(Figure 3.5.1.B)
6. The New Partition Wizard dialog box will appear, click Next to continue. (Figure
3.5.1.C)
7. After selecting partition type, specifying partition size and assigning drive letter, the
Format Partition dialog box (Figure 3.5.1.D) will appear, you have the option of selecting
the Quick Format option. This allow mach fast formatting, however, this disallow Disk
Management to check the drive sector for errors. Click Next to start the format process.
8. Your drive should now appear in your My Computer and ready for use.
Caution
Formatting drive will crash all data in the drive.
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3.5.2. Formatting drive over 2TB capacity on Windows Vista
The steps below will guide you to format a drive over 2TB capacity on Window Vista.
1. Right click Computer and click Manage.
2. From the Computer Management window, select Disk Management.
3. Windows operation system will list all the hard drives that are installed on the system.
Locate the ACS-77100 drive that is represented by the
icon. Right click the icon and
select Initialize Disk.
4. The Initialize Disk dialog box will appear, select the disk number and select the GPT
(GUID Partition Table) partition style. (Figure 3.5.2.A)
5. In the drive box to the right shows Unallocated, right click and select New Simple
Volume. (Figure 3.5.2.B)
6. The New Simple Volume Wizard dialog box will appear, click Next to continue.
7. After selecting partition type, specifying partition size and assigning drive letter, the
Format Partition dialog box will appear, you have the option of selecting the Quick
Format option. This allow mach fast formatting, however, this disallow Disk Management
to check the drive sector for errors. Click Next to start the format process.
8. Your drive should now appear in your Computer and ready for use.
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4. Management
4.1. LCD displayed Messages
The status of the ACS-77100 can be viewed through the LCD display. By using the scroll buttons
to scroll through the messages, the following information is available.
RAID level a nd c a pa c ity
Disk drive model
Disk c a pa c ity
C ontroller firmwa re version C ontroller seria l number Fa n a nd tempera ture sta tus
4.1.1. Booting Messages
LCD Display
Message
RAID Box
Boot
ACS-77100 is booting
RAID Box
Initia lize Disks
ACS-77100 is initializing the installed disks
4.1.2. Set over 2TB Capacity Messages
LCD Display
Message
Ena ble over 2T
Press ENT selec t
Press ENT button to set enable/disable over 2TB
Enable over 2TB capacity
Ena ble over 2T
(YES)
Ena ble over 2T
(NO)
Disable over 2TB capacity
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4.1.3. Initialization Messages
LCD Display
Message
C rea te New RAID?
No (Yes)
Create a new RAID.
RAID INIT XX.X %
Tota l: XXXX G B
New array being created.
RAID Initialization completed successfully.
Message
RAID Init 100 %
XXXX G B INIT OK!
LCD Display
Disk X failed during the initialization. The initialization
cannot proceed.
RAID INIT Fa iled
DX offline
Too many bad sectors in Disk X, initialization cannot
proceed.
RAID INIT Fa iled
DX Ba d sec tors
4.1.4. System Ready Messages
LCD Display
Message
RAID Box
ACS-77100 is ready for use.
Rea dy
hh:mm
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4.1.5. Rebuild Messages
LCD Display
Message
Rebuilding data to a new disk (Disk X) since Disk X
failure.
DX Rebuild XX.X%
Tota l: XXX G B
DX Rebuild 100%
XXX G B OK!
Disk rebuild completed successfully.
The capacity of the new disk (Disk X) is too small.
XXX GB is the capacity of the new disk.
DX Rebuild Fa il
XX G B < YYY G B
YYY GB is the minimum disk capacity of the RAID.
DX Rebuild Fa il
DX offline
Disk rebuilding fail since Disk X failed.
DX Rebuild Fa il
DX Ba d sec tors
Disk rebuilding fail since too many bad sectors in Disk X
4.1.6. Error Messages
RAID Failure Messages
LCD Display
Message
The RAID failed since there are not enough disk
members.
RAID Fa il
c ode: 0
The RAID failed since the sequence of the disks is
incorrect. The current sequence is displayed within the
RAID Fa il
c ode: 1 <xxxx>
<
> space.
RAID Fa il
c ode: 2
The RAID has been failed, but all disks exist.
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Disk Failure Message
LCD Display
Message
Disk X fa il
Disk X failed.
Fan Failure Message
LCD Display
Message
Fa n Fa il
XXXX rpm
Fan failure. The xxxx rpm is the current rpm for the fan.
Overheating Error Message
LCD Display
Message
Tempera ture!!
System overheating. The XX is the current temperature
XX°C > 50°C
4.2. StorConn GUI introduction
ACS-77100 support remote RAID subsystem monitoring by web-based GUI. This section covers
the introduction of the monitoring software.
StorConn monitoring program, a
Key Features
web-based GUI supporting In-band
„
„
„
„
„
Graphical User Interface (GUI)
Multi-interface support
Remote monitoring
interface via SATA channel and
Out-band interface via RS-232, by
which customers can monitor the RAID
status from web browsers at a remote
Web-based environment
Event notification
site. The StorConn is also capable of sending out notification mail to the customers.
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4.2.1. RAID status monitoring window
1. RAID controller tab: Allow customer to select which RAID to monitor.
2. Controller information: Lists model name, serial number and current RAID level.
3. Disk status: Allows you to monitor the status of each of the disk drives.
4. Disk information: Lists model name and capacity of each of the disk drives.
5. Re-build / initialize progress: Tracks the re-building or initialization process.
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5. Update Firmware
ACS-77100 allows the customers to update firmware via RS-232 interface. The firmware can be
updated from a host PC with third party communication software, such as HyperTerminal, that
supports ANSI terminal emulation. The setup process for HyperTerminal will be guided in this
chapter.
Note
The data and configurations on the array are not affected by
firmware updating.
Note
The HyperTerminal is bundled as standard with Microsoft
Windows operating system. It will be found in the
Communications folder. The program can also be download
5.1. Firmware updating steps
1. Ensure the ACS-77100 is turned off.
2. Connect one end of the supplied RS-232 cable to the RS-232 3pin port from the Pin2, 4, 6
of the CN8 on the ACS-77100 controller, and connect the other end to one of the host
computer’s COM port.
| Pin2 to A | Pin4 to B | Pin6 to C |
3. Launch HyperTerminal from the host computer: Start > Programs > Accessories >
Communications > HyperTerminal.
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4. Select COM1 or COM2 from the Connect using: dropdown menu, depending on which port
is connecter to ACS-77100.
5. The COM properties dialog box will appear. Set the following values:
Bit per second: 19200
Data bits: 8
Parity: None
Stop bits: 1
Flow Control: Xon/Xoff
6. Turn on the ACS-77100 and press the ESC button on the host computer keyboard. The
“>>>” prompt will appear.
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7. Type in the command “download” to go to the firmware download mode, then type “1” to
download code (Firmware or Bootcode).
>>> download
restart … 01 GPIO 01 AAA 01 01
========= 76 Download Mode =========
Enter ‘1’
to Download Code (Firmware, Bootcode)
‘ESC’ exit
‘r’
reset
--------------------------- version: Boot ---- 13 (a) ---- 03 Downloading Code!
Flash type: SST39VF040
8. Locate the updates firmware file to send. For HyperTerminal, go to the Transfer menu and
select Send Text File.
9. Send the firmware file as a text file. The file will start to download.
Caution
Do not turn off the system or interrupt program
during firmware-updating procedure.
10. When the file has been downloaded, after ACS-77100 restarted, the firmware-updating
procedure is finished.
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6. Trouble Shooting
Problem
Possible solution
The ACS-77100 does
not appear in the
BIOS.
Ensure that the array has completed the initialization process.
How should I react to
disk failure?
For a RAID 5/RAID 10 array, you should replace the failed disk.
Data rebuilding will then begin.
For a RAID 5+hot spare array, data will be rebuilt automatically
to the hot-spare disk. There is no need to immediately replace
the failed drive.
The capacity of new disk you installed must equal or larger than
the disks installed in ACS-77100. Otherwise, it will be rejected by
ACS-77100, though it has no any damage.
The status for RAID fail Code 0 is: Not enough number of
function disks for a RAID to operate
LCD display RAID Fail
Code 0.
Please create a new array.
LCD display RAID Fail
Code 1 <x x x x>
Represents disk sequence is wrong, and the current sequence
displayed within < >.
Example:
<2134>: disk 2 and disk 1 sequence is reversed.
Please power off the ACS-77100 and replace the disks on the
right slot.
LCD display RAID Fail
Code 2
The status for RAID Fail Code 2 is: The RAID has been failed, but
all disks exist.
Please create a new array.
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7. FAQ
If you encounter a problem while using the RAID box, check this section for help.
1. I have connected the ACS-77100 to host computer, but the host computer
cannot recognize the ACS-77100 in BIOS.
The array of the ACS-77100 must be created so that the host computer can recognize the RAID
in BIOS. Please make sure that an array is created.
2. My Operating System is Linux. I have enabled the over 2TB capacity setting, but
I still cannot partition a device over 2TB in OS. Why?
The ACS-77100 is over 2TB available, but most OS still cannot support SATA device to over 2TB.
Please refer to the below list for choosing the OS.
a) Microsoft Windows Vista
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8. Contact Accusys
Accusys, Inc.
•
•
•
•
•
•
8F, No. 47, Lane 2, Sec. 2, Guangfu Rd., Hsinchu, Taiwan
Tel : +886-3-575-0668
Fax : +886-3-575-0866
Sales : [email protected]
Support: [email protected]
Accusys U.S.A., Inc.
•
•
•
•
•
•
•
46710 Fremont Blvd. Fremont, CA 94538, U.S.A.
Tel:+1-510-661-0800
Fax:+1-510-661-9800
Toll-free number:+1-866-277-5888
Sales : [email protected]
Support: [email protected]
Accusys China, Inc.
•
1701, Blk B, Horizon International Tower, No. 6 Zhichun Street, Haidian District, Beijing,
postcode 100088, China.
•
•
•
•
•
Tel : +86-10-82800080 /81 /82 /83
Fax : +86-10-82800784
Website: www.accusys.com.cn
Sales: [email protected]
Support: [email protected]
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Accusys EU B.V
•
•
•
•
•
•
Columbusstraat 22-26, Distripark Eemhaven, 3165 AD Rotterdam, Netherlands
Tel : +31-10-4284117
Fax : +31-10-4284114
Sales : [email protected]
Support: [email protected]
Accusys Korea, Inc.
•
•
•
•
•
Baegang B/D 5F Shinsa-Dong 666-14 Kanggnam-Gu, Seoul, Korea
Tel : (02)6245-9050
Fax : (02)3443-9050
Email : [email protected]
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