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Offline aggregate after power outage

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fas-systems
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hw
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Applies to

  • All FAS and AFF systems
  • All ONTAP versions
  • FlashPool
  • Disk drive X446_PHM2200MCTO, Firmware below NA05
  • Disk drive X438_PHM2400MCTO, Firmware below NA05
  • Power Outage

Issue

  • After a power outage, one aggregate is offline and cannot be put online

cluster::> storage aggregate modify -aggregate hybrid_aggregate -state online
 

Error: command failed: Failed to bring aggregate "hybrid_aggregate" online. Reason: Aggregate 'hybrid_aggregate' has failed and cannot be brought online.

  • SSD RAID group of the aggregate is missing

Aggregate hybrid_aggregate (failed, mixed_raid_type, partial, hybrid_enabled) (block checksums)
  Plex /hybrid_aggregate/plex0 (offline, failed, inactive)
    RAID group /hybrid_aggregate/plex0/rg0 (normal, block checksums, raid_dp)

      RAID Disk    Device      HA  SHELF BAY CHAN Pool Type  RPM  Used (MB/blks)    Phys (MB/blks)
      ---------    ------      ------------- ---- ---- ---- ----- --------------    --------------
      dparity     2b.11.4     2b    11  4   SA:B   0   SAS 10000 857000/1755136000 858483/1758174768 
      parity      0b.11.5     0b    11  5   SA:A   0   SAS 10000 857000/1755136000 858483/1758174768 
      data        2b.11.6     2b    11  6   SA:B   0   SAS 10000 857000/1755136000 858483/1758174768 
      data        0b.11.7     0b    11  7   SA:A   0   SAS 10000 857000/1755136000 858483/1758174768 
    Plex is missing 1 RAID group.

  • Disks X446_PHM2200MCTO show Failed-Unsupported in SYSCONFIG-A

11.0 : NETAPP   X446_PHM2200MCTO NA04   0.0GB 0B/sect (Failed-Unsupported)
11.1 : NETAPP   X446_PHM2200MCTO NA04   0.0GB 0B/sect (Failed-Unsupported)
11.2 : NETAPP   X446_PHM2200MCTO NA04   0.0GB 0B/sect (Failed-Unsupported)
11.3 : NETAPP   X446_PHM2200MCTO NA04   0.0GB 0B/sect (Failed-Unsupported)

  • Prior to the failure, disks X446_PHM2200MCTO have been powered on for over 70000hours (~8 years)

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