HP StorageWorks HSG80 Array Controller V8.7 Maintenance And Service Manual page 162

Upgrading the Subsystem
3. If the controller is operating, connect a PC or terminal to the controller
maintenance port.
If the controller is not operating, proceed to step 5.
4. Shut down the controllers.
• 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
When the controllers shut down, the reset buttons and the first three LEDs are lit
continuously (see Figure 5–2). Receiving this indication can take several minutes,
depending on the amount of data that needs to be flushed from the cache modules.
CAUTION: For BA370 enclosures only:
• The ECB must be disabled—the status light is not lit and is not blinking—before
disconnecting the ECB cable from the cache module.
• Failure to disable the ECB might result in cache module damage.
5. For BA370 enclosures only:
a. Disable the ECB by pressing the battery disable switch until the status light
stops blinking—approximately 5 seconds.
b. Disconnect the ECB cable from the cache module.
6. Disengage the two retaining levers on the cache module, remove it from the
enclosure, and place it onto a grounded antistatic mat.
7. If adding DIMMs (see Figure 5–6):
a. Press the DIMM retaining clips 3 down for the vacant DIMM slot 2.
b. Insert the new DIMM 1 straight into the slot, ensuring that the notches in the
DIMM align with the tabs in the slot.
c. Close the retaining clips to lock the DIMM into place.
d. Repeat step a through step c for all DIMMs being added.
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