Addonics Technologies AD5EHPMEU3 User Manual

T E C H N O L O G I E S  
User Guide  
External Port Multiplier Ultra  
(AD5EHPMEU3)  
v8.1.11  
Technical Support  
If you need any assistance to get your unit functioning properly, please have your  
product information ready and contact Addonics Technical Support at:  
Hours: 8:30 am - 6:00 pm PST  
Phone: 408-453-6212  
Port Multiplier Compatibility  
When configured as a set of individual drives and connected to a SATA or an  
eSATA host adapter, the Port Multiplier will only work with a Port Multiplier aware  
host. This includes setting up the unit with more than one array. Identify your host  
controller and check with its hardware manufacturer if you are unsure. Addonics  
offers several Port Multiplier aware host adapters.  
Using identical drives for all settings other than JBOD or LARGE is strongly  
recommended. Creating a LARGE array using drives that have different proper-  
ties will use all space on all members, and performance will match that of the  
member in use during any particular I/O operation. Creating a RAID using drives  
that are not all the same size will result in all members using only as much space  
as the smallest member. Creating a RAID using drives that have different perfor-  
mance will degrade the overall performance of the array.  
Port Multiplier Modes  
JBOD Mode (Individual Drives)  
Number of drives: at least 1  
Unit capacity: N/A (100% of each individual drive)  
Spares: no  
Fault tolerance: none  
JBOD mode offers all connected units to the host adapter, no RAID is defined at  
all.  
NOTE: JBOD mode requires a SATA controller featuring Port Multiplier support for  
eSATA connections.  
NOTE: Optical drives can only be configured as JBOD using an eSATA connec-  
tion.  
RAID 0 (Stripe set)  
Number of drives: at least 2  
Unit capacity: size of each member times number of members.  
Spares: no  
Fault tolerance: none - if any member is lost all data is lost.  
RAID 0 “stripes” the file system across the array by placing “chunks” of data  
sequentially between drives in a specific order.  
RAID 1 or 10 (Mirror set, Stripe of mirror sets)  
Number of drives: 2 (RAID 1) or 4 (RAID 10).  
Unit capacity: size of one member (RAID 1) or size of two members (RAID 10).  
Spares: yes – if EZ mode is not disabled and 3 (RAID 1) or 5 (RAID 10) drives are  
present, the array will be initialized with a spare.  
Fault tolerance: RAID 1 can withstand the loss of one drive without losing data.  
RAID 10 can withstand the loss of one drive from each mirror set without losing  
data.  
RAID 1 works by duplicating the exact same data on two drives.  
RAID 10 works by using two RAID 1 sets configured as members of a RAID 0.  
Disks 1 and 2 are mirrored, disks 3 and 4 are mirrored, and the two mirror sets  
are striped together.  
Technical Support (M-F 8:30am - 6:00pm PST)  
Phone: 408-453-6212  
RAID 3 (Stripe set with dedicated parity)  
Number of drives: at least 3  
Unit capacity: size of one member times number of members minus one.  
Spares: yes  
Fault tolerance: can withstand the loss of one drive without losing data.  
RAID 3 works by striping data for individual I/O blocks across all members  
except one, which contains parity data for the stripe set computed internally by  
the Port Multiplier. In the event of failure, the missing information can be  
calculated using the parity information.  
RAID 5 (Stripe set with striped parity)  
Number of drives: at least 3  
Unit capacity: size of one member times number of members minus one.  
Spares: yes  
Fault tolerance: can withstand the loss of one drive without losing data.  
RAID 5 works by striping entire I/O blocks across all members of the set, with  
each member taking turns carrying parity data computed by the Port Multiplier.  
In the event of failure, the missing information can be calculated using the  
parity information.  
CLONE (Mirror set)  
Number of drives: at least 2  
Unit capacity: size of one member.  
Spares: yes  
Fault tolerance: can withstand the loss of any number of drives without losing  
data as long as at least one complete member remains online. CLONE mode  
works the same way as RAID 1, by maintaining a complete copy of the entire  
set of data on each drive.  
LARGE (Spanned set)  
Number of drives: at least 2  
Unit capacity: 100% of all drives together regardless of differences in size  
Spares: no  
Fault tolerance: cannot withstand the loss of any drives without losing data.  
However, some data may be recovered as long as the drive(s) carrying the file  
system data (boot record, directory, etc.) remain online. LARGE mode is  
neither a RAID nor is it a JBOD. It works by declaring the sum of all available  
space of the member drives as a single unit, without striping the data. As each  
member is filled, new data is stored on the next.  
Notes about Spare Drives  
If EZ mode is disabled (SW1:2 ON), all individual drives not configured as array  
members will be offered to the host adapter as separate units.  
To create an array with one or more spares, set or modify the RAID mode while  
the spares are disconnected from the Port Multiplier. When EZ mode is  
enabled (SW1:2 OFF), individual drives connected when an array is present  
are considered spare. Spare drives must be equal to or larger in size than the  
smallest member. When any type of array is defined, individual units will be  
considered spare.  
Technical Support (M-F 8:30am - 6:00pm PST)  
Phone: 408-453-6212  
Configuring the Port Multiplier Using Dipswitches  
Resetting the RAID  
NOTE: This procedure destroys all RAID data. It should not harm individual drives  
or their contents; however, creating backups of all data is strongly recommended  
before proceeding.  
Be sure the port multiplier is connected to an active host before proceeding. The  
port multiplier will not complete the process if it has no host connection.  
1. Power down the unit and set the dip switch to the desired RAID Mode.  
2. While holding the SET button, turn the unit on. A long beep will sound from the  
Port Multiplier. The SET button may be released once the long beep starts.  
Shortly after releasing the SET button, the port multiplier should “chirp” to indicate  
the process is complete. If instead of a chirp the Port Multiplier sounds a series of  
short beeps, an error has occurred during the process.  
Setting or Modifying the RAID Mode  
NOTE: Setting or modifying the RAID mode destroys all data.  
Be sure the port multiplier is connected to an active host before proceeding. The  
port multiplier will not complete the process if it has no host connection.  
1. Follow the procedure for resetting the RAID Mode.  
2. Power down the unit and set the dip switch to the desired RAID Mode.  
3. While holding the SET button with a ballpoint pen, turn the unit on. A long beep  
will sound from the Port Multiplier. The SET button may be released once the long  
beep starts.  
Shortly afterward, the port multiplier should “chirp” to indicate the process is  
complete. If instead of a chirp the Port Multiplier sounds a series of short beeps, an  
error has occurred during configuration of the array.  
BZS Switch (SW1:1):  
The BZS switch is used to silence the audible alarm buzzer. The OFF position  
permits the audible alarm, and the ON position silences the audible alarm. The  
BZS switch has immediate effect.  
EZ Switch (SW1:2):  
The EZ (spare) switch inhibits spares when ON. When in the OFF position, all  
individual drives (not defined as members of an array) are considered spare and  
are not offered to the operating system. Should a RAID become degraded, when  
the EZ switch is in the OFF position a spare drive will be used automatically to  
rebuild the RAID, if present. EZ mode is determined when the unit is powered up.  
Changing the switch will have no effect until the unit has been re-powered.  
Warning: turning off the EZ switch to rebuild an array will consider any drives not  
declared array members to be eligible for rebuild as a spare. Rebuilding will  
destroy all existing data on that drive and the drive chosen is not predictable.  
Disconnect any individual drives with valuable data on them before enabling EZ  
Mode.  
Technical Support (M-F 8:30am - 6:00pm PST)  
Phone: 408-453-6212  
RAID Mode Switches M2, M1, M0 (SW1:3 – SW1-5)  
The RAID Mode switches define what type of RAID will be initialized when the  
unit is powered up while the RAID Mode button is held down. Each type of RAID  
has different properties and requirements, as follows:  
Dipswitch Position  
JBOD (Individual  
Drives)  
1 (BZS)1  
2 (EZ)  
3 (M2)  
OFF  
4 (M1)  
OFF  
5 (M0)  
OFF  
OFF  
OFF2  
* FACTORY  
DEFAULT SETTING  
RAID 0  
RAID 1 OR 10  
RAID 3  
OFF  
OFF  
OFF  
OFF  
OFF  
OFF  
ON3  
OFF  
OFF  
OFF  
OFF  
ON  
ON  
ON  
ON  
ON  
ON  
OFF  
OFF  
OFF  
ON  
ON  
OFF  
ON  
RAID 5  
OFF  
OFF  
ON  
CLONE  
ON  
LARGE  
OFF  
ON  
NOTES:  
1. Audible Alarm is recommended at all times.  
2. EZ mode has no effect when no array is defined.  
3. Disabling EZ for RAID 0 and LARGE is strongly recommended.  
Configuring the Port Multiplier Using the JMicron RAID Manager  
Windows users may install the JMicron HW RAID Manager application located  
on the SATA Controller CD, or download it from  
Utilities → JMB393.  
Mac and Linux users may download those versions of the same utility from  
JMicron RAID Manager can be used to create, modify, and monitor the health  
status of the RAID drives, and provide status alerts with dialog boxes and even  
email. When configuring the RAID mode using the RAID Manager application, it  
is strongly recommended to leave the dip switch in the factory default setting.  
Setting or Modifying the RAID Mode  
This procedure briefly describes the steps for using the Jmicron RAID Man-  
ager's Basic Mode to create an array. The example shown is a LARGE set.  
There are other options available in the Advanced Modes, including building  
arrays using specified drives, setting up email notifications, and updating the  
firmware – which are not discussed in this user guide.  
After starting the Jmicron RAID Manager, the first screen will show the status of  
any Port Multipliers detected and any drives connected. Shown below is a Port  
Multiplier with a variety of five drives connected:  
On the left pane is “Controller 1” which is the first port multiplier detected by the  
software. Shown in a tree view are the five drives, listed as P0-P4. These are  
currently individual drives. On the right pane is a listing of the drives and below  
that is a graphical view of each drive. “Disk 1” through “Disk 4” indicate which  
physical port the drive is connected to. For the AD5HPMSXA, AD5HPMRXA-E,  
and AD5HPMREU this refers to ports P0-P4. On the CPR5SA unit, this refers to  
HD0-HD4. On the AD5EHPMEU3 this refers to D1-D5. On RAID Tower products  
this relates to the drives mounted left to right or top to bottom, except in cases  
where a drive map is included showing otherwise.  
Technical Support (M-F 8:30am - 6:00pm PST)  
Phone: 408-453-6212  
Next, click the Basic RAID Configuration tab and select the type of RAID desired.  
Note that RAID 1 is currently disabled as an option since more than two  
individual drives are available, and DELETE ALL RAID is disabled since there are  
currently no arrays to delete. Shown below is the same set of drives being  
selected as a LARGE array.  
Finally, click Apply. The Jmicron RAID Manager will confirm the operation with a  
reminder that existing data on the drives will be lost, then perform the RAID  
configuration and report with a dialog box when it is complete.  
Technical Support (M-F 8:30am - 6:00pm PST)  
Phone: 408-453-6212  
The RAID and Disk Information screen (shown when the program was  
launched) will now show the Port Multiplier with an Array. The drives are now  
listed as M0-M4, indicating they are members of the array. If spares are  
present (individual drives added later, and the EZ switch is in the OFF  
position), they would be listed as S0, S1, etc. On the right pane, the RAID  
Level, status, capacity and members that are online are listed. Status will show  
“Normal” (all members on line), “Degraded” (a fault-tolerant array with a drive  
failure needing service), “Rebuilding” (a fault-tolerant array in the process of  
reconstructing lost data onto a spare) or “Broken” (an array that has lost all  
data).  
In the event of a drive failure, the Jmicron RAID Manager will present a dialog  
box such as the one shown below, even if it is currently minimized to the system  
tray:  
CONTACT US  
Phone:  
Fax:  
408-573-8580  
408-573-8588  
Email:  

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