2–10
HSG80 Array Controller V8.7 Maintenance and Service Guide
Common Replacement Information and Procedures
•
In dual-redundant controller configurations, shut down the “other controller”
first, then shut down “this controller” with the following commands:
SHUTDOWN OTHER_CONTROLLER
SHUTDOWN THIS_CONTROLLER
NOTE: After the controllers shut down, the reset buttons and the first three LEDs turn
O
N
(see Figure 2–5). This might take several minutes to happen, depending on the
amount of data that needs to be flushed from the cache modules.
Proceed only after the reset buttons stop F
LASHING
and remain O
N
.
Figure 2–5: Controller reset button and first three LEDs
IMPORTANT: When replacing several cables, a switch, or a hub, label each cable to
facilitate installation of the replacement item. Otherwise, subsystem errors will develop from
improper connections.
3. If replacing a fiber optic cable without extender clips, disconnect the failed cable
at each end using thin needle-nose pliers (see inset on Figure 2–6).
If replacing a switch or hub, disconnect all cables connected to the switch or hub.
1
Reset button
2
First three
LEDs
1
2
3
4
5
6
CXO6991A
2
1