Compaq 3000 - Manual (Page 79)

RAID Array 3000 Controller Shelf
3–28 EK–SMCPQ–UG. C01
3.5 Controller LEDs
The LEDs on the front panel of the controller monitor host and disk channel ac-
tivity and a controller fault condition. The reset button/LED flashes green ap-
proximately once every second (heartbeat) to indicate that the controller is oper-
ating normally. Figure 2–3, Chapter 2, identifies the LEDs. Table 2–1 describes
their functions.
3.6 Replacing Components (FRU’s)
This section describes how to replace an FRU in the RAID Array 3000 controller
shelf. The information is divided into the following subsections:
•
Replacing a Host I/O or Device I/O SBB in the controller shelf
•
Replacing a shelf power supply SBB
•
Replacing the RAID controller
•
Replacing the UPS
•
Replacing a blower
•
Replacing a controller memory cache module
NOTE
The rack-mount UPS is also field replaceable. Re-
fer to the user’s guide supplied with the unit for the
order number and instructions of how to replace it.
Figure 3–15 is an exploded view that shows the Field Replaceable Units in the
controller shelf. Table 3–4 lists the units and their corresponding part numbers.