Chapter 1: Introduction
Major Subsystem
Components
1-9
Docking Connectors:
The FCI docking connectors at the rear of the
controller boards connect the controller module to the backplane board.
Ejection levers:
The two (2) ejection levers on the sides of the
controller canister ensure positive connection and provide a graceful
means to retrieve the canister from chassis.
1.3.4.1 JBOD
Support
JBOD Enclosure Service:
Each RAID controller comes with a SAS 4x, wide expansion port that
connects to SAS JBOD(s). A managing RAID subsystem is aware of
the operating statuses of JBOD components including:
1.
JBOD expander controller
2.
PSU
3.
Cooling module
4.
Enclosure thermal
5.
Disk drives
A managing RAID subsystem acquires JBOD component statuses via a
proprietary enclosure service using in-band SAS port connectivity. No
additional management connection is required.
JBOD Identifier:
The managing RAID subsystem will sound the alarm and deliver
notification messages if the following occur:
1.
JBOD ID conflict. If more than one JBOD is connected to
the managing RAID subsystem, each JBOD needs a
unique ID set by the rotary switch on the chassis ear.
2.
Firmware automatically disconnects a second JBOD if the
second JBOD is connected online and comes with an ID
identical to that of the first JBOD.
1.3.4.2 Controller
Module
Interfaces
The controller interfaces are accessed through the controller’s rear-facing
faceplate shown in
Figure 1-8
.