HPE ProLiant Gen9

1797-Slot X Drive Array – Write-Back Cache Backup Previously Failed
Symptom
1797-Slot X Drive Array - Flash Backed Write Cache module read or backup error occurred. Action: Replace
Flash Backed Write Cache module.
Cause
• HPE Smart Storage Battery pack was not sufficiently charged to provide backup power for the cache
module.
• The data could not be copied to the Write-Back Cache.
• The metadata stored in the Write-Back Cache could not be read or written.
Action
1. Use to check the HPE Smart Storage Battery charge. Verify that the battery charge is sufficient to enable
caching.
2. Be sure the cache module is seated properly.
3. Reseat the cache module.
4. Replace the cache module.
For more information, see the maintenance and service guide on the Hewlett Packard Enterprise
website.
Action
1. Use iLO to verify that the HPE Smart Storage battery is charged, and that the charge is sufficient to enable
caching
2. Verify that the cache module is seated properly.
3. Reseat the cache module.
4. Replace the cache module.
For more information, see the maintenance and service guide on the Hewlett Packard Enterprise
website.
1797-Slot X Drive Array – Write-Back Cache Read Error Occurred
Symptom
1797-Slot X Drive Array – Write-Back Cache Read Error Occurred. Data in Cache has been lost. Caching is
disabled.
Cause
• An issue occurred reading from the write-back cache.
• A failure occurred writing to the DDR memory.
• A failure occurred reading or writing to the metadata stored in the write-back cache.
150 1797-Slot X Drive Array – Write-Back Cache Backup Previously Failed