Addonics Technologies RAID Tower XIII RT134DAMS user guide web

							Technical Support
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Phone: 408-453-6212
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v5.1.11
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T E C H N O L O G I E S
User Guide
RAID Tower  XIII(RT134DAMS)         
						

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Screws
Removing Cover of Storage Tower 
XIII
Loosen the 3 screws at the back of the tower for each 
side panel using a Philips screwdriver. Push each side 
panel toward the rear of the tower to disengage and 
remove.
Overview
1. Front panel power switch
2. Power LED
3. Hard drive activity LEDs (each array)
4. Hard drive bay power switches (each array)
5. Audible alarm reset button (each array)
6. Fan LED (each array)
7. Temperature LED (each array)
Each of the Disk arrays in RAID Tower XIII is equipped 
with an audible alarm. Should the temperature or fan 
speed fall out of range, the appropriate LED will glow 
amber or red and the audible alarm will sound.
Each disk array appears on the SAS connection in order 
from top to bottom. The top array will appear on channel 
1, the second on channel 2, third on channel 3, and the 
bottom array on channel 4.
Installation
1. Be sure front and rear power switches are in the 
OFF position.
2. Connect power cord to the unit.
3. Connect cable from SAS connector to host controller.
4. Turn on main power switch on the back of the unit. The
 power switch on the front may be used for normal
 peration.
Drive Installation
1. Mount hard disk on disk array tray.
2. Insert tray into array cabinet with lever open and eject 
button side up.
3. Press the drive firmly into position, close the eject lever 
and turn the lock if desired.
SAS
connector
AC input
switchMain AC  switch
3
7
6
4
5
1
2 
						

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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 set\
ting (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 locate\
d 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 l\
eave the 
dip switch in the factory default setting.
Using identical drives for all settings other than JBOD or LARGE is stro\
ngly 
recommended. Creating a LARGE array using drives that have different properties 
will use all space on all members, and performance will match that of th\
e 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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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 alar\
m. The BZ 
switch has immediate effect.
EZ Switch (SW1:2):
The EZ (spare) switch inhibits spares when ON. When in the OFF positio\
n, 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 recommende\
d.
Raid  M ode B ZS1 E Z M 2 M1 M0 
JB O D ( Indiv id u al 
d riv e s) *  FA C TO RY D EFA U LT  SETTIN G  
O FF O FF2 O FF O FF O FF 
0 O FF  O
N3  ON  ON  ON 
1 o r 1 0 O FF O FF O N ON OFF 
3 O FF O FF O N ON OFF 
5 O FF O FF O FF O N OFF 
CL ONE  OFF  OFF  OFF O N ON 
LA RG E O FF O N3 ON OFF O N 
  
						

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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 secto\
rs 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 (RA\
ID 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 losi\
ng 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 mirr\
or 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 membe\
rs 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\
.
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 strip\
ing the data. 
As each member is filled, new data is stored on the next.
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							Notes about Spare Drives
If EZ mode is disabled (SW1:2 ON), all individual drives not configure\
d 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 u\
sing 
fewer than 5 members, while the spares are disconnected from the Port Mu\
ltiplier. 
When EZ mode is enabled, individual drives connected when an array is pr\
esent 
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 s\
pare. RAID 0 
and LARGE arrays are not fault-tolerant and spare drives will not be use\
ful; 
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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