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Commvault によってトリガーされた Snapshot を AIQ Unified Manager が削除できません

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環境

  • CommVault Intellisnap11
  • アクティブ IQ Unified Manager 9.x
  • ONTAP 9

問題

  • CommVault では、独自のデータベースに従って Snapshot がローテーションされますが、一部の Snapshot は削除されません
  • パターンがなく、すべてのランダムクラスタ、複数のクラスタに影響します
  • Commvault では Snapshot の有効期限フラグが Commvault に正しく送信されるため、エラーは発生しません
  • Unified Manager はこれらの Snapshot を削除します
  • Unified Manager のメインログにエラーはありませんが、失敗した要求は zapioutbound ログに表示されます

失敗した要求の例
2021-07-12 13:47:55,254 DEBUG [taskScheduler-3] Executing ZAPI request snapshot-delete to [cluster ip]:
<?xml version='1.0' encoding='UTF-8'?><!DOCTYPE netapp SYSTEM 'file:/etc/netapp_filer.dtd'><netapp xmlns=http://www.netapp.com/filer/admin version="1.7" vfiler="[svm]" originator_id="AIQ_UM"><snapshot-delete><snapshot>SP_2_60486_555763_1525658422</snapshot><volume>[mirrored volume]</volume></snapshot-delete></netapp>
2021-07-12 13:47:55,271 DEBUG [taskScheduler-3] Received ZAPI response for snapshot-delete from [cluster ip]:
<?xml version='1.0' encoding='UTF-8' ?>
<!DOCTYPE netapp SYSTEM 'file:/etc/netapp_gx.dtd'>
<netapp version='1.130' xmlns='http://www.netapp.com/filer/admin'>
<results reason="This Snapshot copy is currently used as a reference Snapshot copy by one or more SnapMirror relationships. Deleting the Snapshot copy can cause future SnapMirror operations to fail. " status="failed" errno="13012"/></netapp>

クラスタ CLI での削除が次のように失敗する:
[cluster]::> snapshot delete -vserver [vserver] -volume [vol] -snapshot [snapshot name]
 
Error: command failed: This Snapshot copy is currently used as a reference Snapshot copy by one or more SnapMirror relationships. Deleting the Snapshot copy can cause future SnapMirror operations to fail.

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