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断続的なスナップショットが適切に回転しないアラートが報告されました

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環境

  • ONTAP 9
  • MetroCluster

問題

  • AutoSupport SYNCMIRROR SNAPSHOTS NOT ROTATING PROPERLY が断続的にトリガーされます
  • エラーを示すイベントログ:
Thu Apr 20 12:28:06 +0200 [Node_A1: config_async_0: raid.mirror.resync.snapcrtfail:error]: Aggregate aggr1: could not create mirror resynchronization Snapshot copy mirror_resync.0420102806(aggr1) (No space left on device)
  • 大量のファイル削除に関する警告:
Wed Jan 18 01:34:50 +0100 [Node_A1: wafl_exempt05: wafl.zombie.susp.aggr.limit:notice]: WAFL(R) aggregate aggr1 is experiencing zombie throttling possibly due to requests for large number of file deletions. This can be mitigated by a combination of a) reducing the load on the aggregate or b) issuing the file deletion requests in smaller batches.
  • df -a -hは、影響を受けるアグリゲートのSnapshotリザーブがフルであることを示します。
ClusterA::> run -node nodeA_1 -c df -A -h
Aggregate         total     used    avail capacity
aggr1               3179GB    1029GB    2149GB    32%
aggr1/.snapshot        167GB     167GB    NaN    100%

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