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Slow performance of Syncmirror resync aggregate and high CPU utilization

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Category:
metrocluster
Specialty:
metrocluster
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Applies to

  • MetroCluster IP
  • ONTAP 9

Issue

  • Multiple mirrored plexes were broken off during multiple day MetroCluster maintenance switchover.
  • Upon resyncing one aggregate experienced single digit throughput rates lasting for several hours before aborting due to snapshot space and time to restore.

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