Specifications

2–38 Compaq StorageWorks HSG80 Array Controller ACS Version 8.5 Maintenance and Service Guide
■ Repeat step 2 through step 7.
9. Remove the old ECB.
NOTE: If an empty bay was not available, and the new ECB was placed on the top of the
enclosure, carefully insert it now into the empty bay.
Replacing an ECB With Cabinet Powered Off
Use the following steps to replace the ECB with the cabinet powered off:
1. If the controller and cache module are not operating, go to step 4. Otherwise, proceed
to step 2.
2. Connect a PC or terminal to the maintenance port of the operational controller.
The controller connected to becomes “this controller;” the controller for the ECB
cache module becomes the “other controller.”
3. 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 2–4). Receiving this indication can take several minutes,
depending on the amount of data that needs to be flushed from the cache modules.
4. Turn off the power to the subsystem.
5. Remove the old ECB if a single-ECB and insert the new ECB into its bay. For dual
ECB configurations, do not remove until the end of the procedure.
NOTE: If an empty bay is not available, place the new ECB on the top of the enclosure.
CAUTION: The ECB cable has a 12-volt and a 5-volt pin. Improper handling or
misalignment when connecting or disconnecting might cause these pins to contact
ground, resulting in cache module damage.