HP StorageWorks HSG60 and HSG80 Array Controller and Array Controller Software Maintenance and Service Guide (EK-G80MS-SA. C01, March 2005)

Upgrading the Subsystem
246 HP StorageWorks HSG60 and HSG80 Array Controller and Array Controller Software
Maintenance and Service Guide
To upgrade cache module memory, shut down its controller. Use the following
steps to upgrade or add DIMMs:
Caution: ESD can easily damage a cache module or a DIMM. Wear a
snug-fitting, grounded ESD wrist strap during this procedure.
1. From the host console, dismount the logical units in the subsystem.
2. If using a Windows NT platform, shut down the server.
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 (on page 247).
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, and then shut down “this controller” with the following
commands:
SHUTDOWN OTHER_CONTROLLER
SHUTDOWN THIS_CONTROLLER
After the controllers shut down, the Reset buttons and the first three LEDs are
lit continuously (see Figure 74). 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 can result in cache module damage.