HP StorageWorks ExDS9100c/X9720 Storage System Controller (496785-002, December 2009)
Table Of Contents
- ExDS9100c/X9720 Storage System Controller
- Customer self repair (CSR)
- Before you begin
- Verifying component failure
- Preparation
- Step 1: Removing the failed controller
- Step 2: Transferring the cache module and batteries
- Step 3: Installing the replacement controller
- Confirming the firmware version
- Verifying component status
- Returning the failed component
- Additional information
IMPORTANT:
In dual-controller configurations, both controllers must execute
the same version of firmware. If the controllers have different
firmware versions, the storage system responds as follows:
• Cold boot method
If a second controller is installed while the device is powered
off, the system compares the firmware versions of both
controllers at power on and clones the most recent version
from one controller to the other controller.
• Hot plug method
If a second controller is installed while the device is powered
on, the system clones the firmware version of the active
controller to the second controller.
CAUTION:
In hot-plug cloning, it is possible for
firmware on a newly installed controller to
be downgraded to an earlier version. If
this occurs, schedule a maintenance
window and update the firmware of both
controllers to the latest version.
Verifying component status
• Verify that the controller LED on the rear of the chassis is green.
• Verify that no error messages are displayed on the seven-segment
display.
Returning the failed component
Follow instructions shipped with the replacement part.
Additional information
HP: http://www.hp.com
HP support: http://www.hp.com/support
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