22
Rear Panel Components
Controller Module of RAID Models
Designation
Description
Designation
Description
1
Host ports
5
Restore default LED
2
Battery Backup Unit
6
Controller status LED
3
SAS expansion port
7
Ethernet management port
4
Restore default button
8
Serial port
2
1
3 4 5 6 7
8
The controller on the dual controller models also features a
C
ache
B
ackup
M
odule
(CBM), consisting of a
B
attery
B
ackup
U
nit (BBU) and
F
lash
B
ackup
M
odule (FBM).
The CBM and its components may be optional items for some systems.
The controller module contains no user-serviceable components except when users
are installing/ upgrading the cache memory or installing/replacing a CBM, the
controller module should never be removed or opened.
NOTE
The Ethernet management port supports only 100Mbs and 1000Mbs (1Gbs) speeds.
The battery backup unit (BBU) is an optional accessory for single controller systems.
WARNING
The only time you should remove the controller is to install/replace the memory
modules, CBM or a failed controller. The RAID controller is built of sensitive
components and unnecessary tampering can damage the controller.
