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単一のディスクスタック内のディスクの積極的な障害

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Category:
metrocluster
Specialty:
metrocluster
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環境

  • ONTAP 9
  • ファブリックMetroCluster
  • ATTO FB7500N

問題

短時間に複数のディスクで障害が発生した場合
例:
ClusterA::> storage disk show -broken
Original Owner: ClusterB-01
  Checksum Compatibility: block
                         Drawer               Usable Physical
   Disk       Outage Reason  HA Shelf Bay  /Slot Chan   Pool  Type   RPM    Size    Size
   --------------- ------------- --- ----- --- ------ ---- ------ ----- ------ -------- --------
   1.51.22      failed     11b   51  22   -/-    A FAILED   SSD    -     -   6.99TB
Original Owner: ClusterB-01
  Checksum Compatibility: block
                         Drawer               Usable Physical
   Disk       Outage Reason  HA Shelf Bay  /Slot Chan   Pool  Type   RPM    Size    Size
   --------------- ------------- --- ----- --- ------ ---- ------ ----- ------ -------- --------
   1.51.15      failed     11b   51  15   -/-    A FAILED   SSD    -     -  894.3GB
Original Owner: ClusterA-01
  Checksum Compatibility: block
                         Drawer               Usable Physical
   Disk       Outage Reason  HA Shelf Bay  /Slot Chan   Pool  Type   RPM    Size    Size
   --------------- ------------- --- ----- --- ------ ---- ------ ----- ------ -------- --------
   1.51.6      failed      1d   51   6   -/-    B FAILED   SSD    -  894.0GB  894.3GB
   1.51.16      failed      1d   51  16   -/-    B FAILED   SSD    -   6.99TB   6.99TB
   1.51.17      failed      1d   51  17   -/-    B FAILED   SSD    -   6.99TB   6.99TB
   1.51.18      failed      1d   51  18   -/-    B FAILED   SSD    -   6.99TB   6.99TB
 
 
いずれかの ATTO ブリッジのイベントログに大量のエラーが記録されています
例:
INFO FC TM Cmd Rcvd: Abort Task Set to LUN:27 on FC Port 1
 
ATTO ブリッジのエラーカウンタが増加しています
例:
; Fibre Channel Error Counts ; Port | Link Failures | Sync Loss | Signal Loss | Invalid Tx | Invalid CRC ;========================================================================== 1 1 2 0 16 4796 2 1 1 0 4 0

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