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Although the RAID controller can be hot-swapped, the RAID
controller is built of sensitive components and unnecessary
tampering can damage the controller.
1.3.5
Special Firmware Implementations
Monitoring:
A RAID subsystem is aware of component statuses such as
those of:
JBOD Identifier:
If connected with JBODs, the managing RAID subsystem will
sound the alarm and deliver notification messages if the
following occur:
Cooling Module Speed Adjustment: If any of the detected
temperature readings breaches the high temperature threshold,
the firmware running on the managing RAID subsystem
automatically forces all cooling fans to run at a higher rotation
speed.
Controller Module Interfaces
The controller module interfaces are accessed through the controller
rear-facing faceplate as shown in Figure 1-12.
Major Subsystem Components
WARNING!
1.
JBOD expander
2.
PSU
3.
Cooling module
4.
Enclosure thermal
5.
Disk drives
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 IP switch on its forearm
handle.
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.
Chapter 1: Introduction
1-9
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