3Ware 9550SXU-16ML User Guide - Page 240
Dh Battery health check failed, 05Eh Cache synchronization completed
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Chapter 11. Troubleshooting threshold. This indicates that the battery pack should be replaced soon because the battery is becoming weak. 05Dh Battery health check failed The Battery Backup Unit periodically evaluates the health of the battery and its ability to backup the 3ware RAID controller in case of a power failure. This AEN is posted when the result of the health test is below the fault threshold. This indicates that the battery pack must be replaced. The Battery Backup Unit becomes not ready and is unable to backup the 3ware RAID controller. 05Eh Cache synchronization completed If drive insertion causes unit to become operational this will be sent if retained write cache data was flushed. The 3ware RAID controller performs cache synchronization when system power is restored following a power failure. This AEN is posted for each unit when the cache synchronization completed successfully. 05Fh Cache synchronization failed; some data lost The 3ware RAID controller performs cache synchronization when system power is restored following a power failure. This AEN is posted when cache synchronization was not successful for some reason. 230 3ware 9550SX Serial ATA RAID Controller User Guide