Controller Reset Button And First Three Leds - HP StorageWorks HSG80 Array Controller V8.7 Maintenance And Service Manual

Replacement Procedures for BA370 Enclosure Elements
• In single-controller configurations, shut down "this controller" with the
following command:
SHUTDOWN THIS_CONTROLLER
• 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 (see Figure 3–1). This might take several minutes to happen, depending on the
N
amount of data that needs to be flushed from the cache modules.
Proceed only after the reset buttons stop F
1
Figure 3–1: Controller reset button and first three LEDs
5. Remove power to the subsystem.
CAUTION: When shutting down the controller for longer than one day, perform the
steps in the next section, "Disabling the External Cache Batteries (ECBs)" to prevent
these write-back cache batteries from discharging.
3–2
2
1 2 3 4
HSG80 Array Controller V8.7 Maintenance and Service Guide
and remain O
LASHING
5 6
CXO6991A
.
N
1
Reset button
2
First three LEDs