Addonics Technologies ST45HPMXA-B User manual

Technical Support
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v8.1.11
T E C H N O L O G I E S
www.addonics.com
User Guide
Storage Tower
(ST45HPMXA-B)

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Installation
1. Open the outer cabinet by removing the two screws securing the
side panels, then pushing each side panel toward the rear of the
unit.
2. Mount up to two 5.25” devices or enclosures using the supplied
screws.
3. Connect each device or each connection on each enclosure to the
Port Multiplier.
4. Close the outer cabinet and secure it with the three cover screws.
5. If multiple drives in the cabinet are to be used independently,
connect the eSATA port on the back of the unit to an eSATA host
that supports Port Multipliers or connect USB 3.0 port. Do not
connect USB and eSATA concurrently.
6. If multiple drives are installed and a RAID configuration is desired,
proceed to the section titled Configuring the RAID Mode. If a
single RAID unit is created, port multiplier support is not required.
If multiple RAID units are defined, an eSATA host that supports
Port Multipliers will be required.
Cover Screw
Cover Screw
eSATA port Dipswitch
Set Button

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Cable Connections
1. Attach the SATA hard drives (up to 5) to the SATA ports on the
Hardware Port Multiplier (HPM) using SATA cables. It is recommended
to connect drives to the SATA ports 0 to 4 successively.
2. To provide power to the HPM, connect a 4-pin floppy power cable from
the system power supply to the floppy power connector on the HPM.
3. Optional: Connect LEDs to the Activity & Error LED jumper block.
NOTE: P5 Activity LED shows Host activity. P5 Error LED shows a RAID error.
RAID
Setting
button
Dip Switch eSATA Host Port
Port 1
Port 2
Port 0
Port 3
Port 4Activity LEDError LED

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Resetting the RAID Mode
NOTE: This procedure destroys all RAID data. It should not harm individual drives or their
contents; however, creating or running backups of all data is strongly recommended before
proceeding.
1. Power down the unit and set the dip switch to the factory default setting
(all switches OFF).
2. 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 stops.
Setting or Modifying the RAID Mode
NOTE: Setting or modifying the RAID mode destroys all data.
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 stops.
If instead of a long beep the Port Multiplier sounds a series of short beeps,
an error has occurred during configuration of the array.
Windows users may install the JMicron HW RAID Manager application
located on the SATA Controller CD. In the CD, browse to Configuration
Utilities → JMB393. The JMicron HW RAID Manager can be used to
create, modify, and monitor the health status of the RAID drives, and
provide status alerts. When configuring the RAID mode using the RAID
Manager application, it is strongly recommended to leave the dip switch in
the factory default setting.
Using identical drives for all settings other than JBOD or LARGE is
strongly recommended. Creating a LARGE array using drives that have
different properties 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 performance will degrade the overall
performance of the array.
BZS Switch (SW1:1):
The BZ 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 BZ switch has immediate effect.

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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. 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.
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:
1 Audible alarm is recommended at all times.
2 EZ mode has no effect in JBOD mode.
3 Disabling EZ for RAID 0 and LARGE is strongly recommended.
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 connection.
Raid Mode
BZS1
EZ
M2
M1
M0
JBOD (Individual
drives)
* FACTORY DEFAULT
SETTING
OFF OFF2OFF OFF OFF
0 OFF ON
3
ON ON ON
1 or 10 OFF OFF ON ON OFF
3 OFF OFF
ON
ON
OFF
5 OFF OFF OFF
ON
OFF
CLONE
OFF
OFF
OFF
ON
ON
LARGE OFF ON
3
ON OFF ON

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 sectors 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.
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 by the Port
Multiplier.
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.
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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 using fewer than 5 members, while the spares are disconnected
from the Port Multiplier. When EZ mode is enabled, 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. RAID 0 and LARGE arrays are not fault-tolerant and spare drives
will not be useful; therefore, disabling EZ for these arrays is
recommended.
When a spare drive is present and a fault-tolerant RAID (1, 10, 3, or 5) is
defined, EZ mode will automatically rebuild any available spares into the
array.
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