Addonics Technologies Sapphire RAID enclosures S4DAHU3 User Manual

							www.addonics.com
with eSATA & USB 3.0
(S4DAHU3)
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
Email: http://www.addonics.com/support/query/ 
						

							Overview
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Power Supply
(U.S. Version Shown)
USB 3.0 Cable 
						

							Drive Installation
Hot Swapping
This unit supports hot swapping (inserting or removing drives while the drives are running and connected to a
computer). The eSATA controller on the computer must also support hot swapping - be sure to confirm this
before attempting to insert or remove drives while the system is running. Also be sure to practice the
appropriate safe removal procedure before proceeding. Failure to practice safe removal procedures will
result in loss or corruption of data.
Port Multiplier Compatibility
In JBOD Mode on eSATA, the Port Multiplier in this unit will only work with a Port Multiplier aware eSATA host
adapter. 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 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.
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Secure the drive to the tray with the SATA connector 
toward the rear, using the screws provided.
Rest the tray tabs on the tabs in the bay and gently push inward.
Be sure the door is in the open position when the tray is fully 
inserted, then close the door to seat the drive and secure it in 
place. If desired, lock the door using the provided keys. 
						

							Port Multiplier Modes
The Port Multiplier supports individual drives (JBOD Mode), several types of RAID and some non-RAID drive
sets. Each configuration has different properties and requirements, as follows:
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 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.
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.
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							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.
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 to replace a failed member.
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.
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							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, as follows:
Dipswitch Position1 (BZS)12 (EZ)3 (M2)4 (M1)5 (M0)
JBOD (Individual
Drives)
* FACTORY
DEFAULT
SETTING
OFFOFF2OFFOFFOFF
RAID 0OFFON3ONONON
RAID 1 OR 10OFFOFFONONOFF
RAID 3OFFOFFONOFFOFF
RAID 5OFFOFFOFFONOFF
CLONEOFFOFFOFFONON
LARGEOFFONONOFFON
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 http://addonics.com/drivers/driver_list.php. In the CD, browse to Configuration Utilities →
JMB393.
Mac and Linux users may download those versions of the same utility from
http://addonics.com/drivers/driver_list.php under “Port Multiplier & Hub.” The 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 Managers Basic Mode to create an
array. The example shown is a LARGE set with 5 members. 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.
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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 SDAHU3, the top left drive 
is Disk 1, Top right drive is Disk 2, bottom left 
drive is Disk 3, and bottom right drive is Disk 4. 
						

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Phone: 408-573-8580
Fax: 408-573-8588
Email: http://www.addonics.com/sales/query/