Symptoms

Seagate Skybolt drive fails and reports a medium error or medium format corrupted in the operating system (OS) logs. The drive reports an unexpected sense key 03/31/0e in OS or RAID controller logs. Family Type Part Number Model Capacity Previous Firmware Updated Firmware Skybolt 512n ISE G2G54 ST1200MM0099 1.2 TB ST37 ST38 Skybolt 512e ISE JY57X DL1800MM0159 1.8 TB ST5D ST5E Skybolt 512e ISE RWR8F DL2400MM0159 2.4 TB ST5D ST5E SkyboltServoBP SAS 512e ISE PI-2 1D0F5 BL2400MM0159 2.4 TB SBS5 SBS6

Cause

This error indicates a potential under-voltage fault, which resulted in the drive to reset and not save the NVC resulting in the Medium Format Corrupt errors.

Resolution

Dell has released updated firmware that disables Hardware DRAM Self-Refresh that can lead to an unexpected drive reset. Dell Engineering recommends installing this firmware on all Seagate Skybolt drives at the earliest opportunity to avoid impact to data. Drives that have already been reported as medium format corrupt must be replaced. Systems without an active service contract can restore drive functionality by reformatting with operating system utilities such as sg_format. Note: Reformatting large capacity drives requires an extended timeframe and can take 1 or 2 days to complete. VxRail releases 7.0.540 and 8.0.320 introduce the fixed firmware versions for this problem. Upgrading the cluster to 8.0.320 or a later version in 8.0 release and 7.0.540 in 7.0 release can fix this problem.

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