HP ProLiant Gen9 Troubleshooting Manual page 88

Power up the server to see if the problem still exists.
5.
If configured for fault-tolerant operation and the RAID level can sustain failure of all indicated drives:
6.
Press the F2 key to fail the drives that are not responding
a.
Replace the failed drives.
b.
Press the F1 key to start the system with all logical drives on the controller disabled.
7.
Be sure the system is always powered up and down correctly.
•
When powering up the system, all external storage systems must be powered up before the server.
•
When powering down the system, the server must be powered down before external storage systems.
1792-Slot X Drive Array - Valid Data Found in Write-Back Cache...
...Data will automatically be written to drive array.
Audible Beeps: None
Possible Cause: Power was interrupted while data was in the write-back cache. Power was then restored
within several days, and the data in the write-back cache was flushed to the drive array.
Action: No action is required. No data has been lost. Perform orderly system shutdowns to avoid leaving
data in the write-back cache.
1793-Slot X Drive Array - Data in Write-Back Cache has been Lost...
(plus one of the following:)
...* Battery Pack Charge Depleted
* Battery Pack Disconnected
* Write-Back Cache Backup Failed
* Write-Back Cache Restore Failed
Audible Beeps: None
Possible Cause: Power was interrupted while data was in the write-back cache, or the battery pack batteries
failed. Data in the write-back cache has been lost.
Action:
Verify the integrity of the data stored on the drive. Power was not restored within enough time to save
1.
the data.
Perform orderly system shutdowns to avoid leaving data in the write-back cache.
2.
If the data is corrupt, restore previous data backup.
3.
1794–Slot X Drive Array – Cache Module Battery Pack is Charging...
...Caching will be enabled once the Battery Pack has been charged. No action is required.
Audible beeps: None
Possible cause: The Cache Module Battery Pack is charging.
Action: No action is required.
1794-Slot X Drive Array - Cache Module Battery Pack/Super-Cap Removed or Not
Installed...
...Caching will be re-enabled when Battery Pack/Super-Cap is connected.
HP ProLiant server errors 88