22
QXS Site Planning Guide
56 Drive RAID Chassis: Rear Panel Components
Figure 20
provides the 4U56 drive RAID chassis (rear panel components).
Figure 20
4U56
Drive RAID Chassis (
rear panel components
)
Figure 21
provides the controller I/O module (with ports identified).
Figure 21
Controller I/O Module
LINK
SERVICE–1
CACHE
DIRTY
CLEAN
LINK
ACT
SERVICE–2
CLI
CLI
PORT 0
PORT 1
PORT 2
PORT 3
LINK
SERVICE–1
CACHE
DIRTY
CLEAN
LINK
ACT
SERVICE–2
CLI
CLI
PORT 0
PORT 1
PORT 2
PORT 3
3
4
5
5
3
4
1
2
1
Controller I/O module A
2
Controller I/O module B
3
AC power supply switch
4
Power supply module
5
Fan control module (FCM)
LINK
SERVICE–1
CACHE
DIRTY
CLEAN
LINK
ACT
SERVICE–2
CLI
CLI
PORT 0
PORT 1
PORT 2
PORT 3
1
2
3
4
5
6
7
8
1
CNC FC or iSCSI SFP+ Ports (used for host
connection or replication)
2
CLI Port (USB - Type B)
3
Service Port 2 (Service Personnel Use Only)
4
Reserved for future use
5
Network Port
6
Service Port 1 (Service Personnel Use Only)
7
Disabled button (used by engineering only) (Sticker
shown covering the opening)
8
mini-SAS expansion port
