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Best practices to manage Aggregate reallocation Job prior to ONTAP Upgrade

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ontap-9
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Applies to

  • ONTAP 9
  • AFF/FAS
  • Aggregate reallocation

Answer

  • During ONTAP upgrades, WAFL background jobs are paused or interrupted, which can delay or abort reallocation jobs if not managed properly.

  • Aggregate reallocation status can be verified using:

::*> aggr reallocation show
JobID      Aggregate            Schedule   State
101942     xxxx_AGGR_01         @now       Running
Progress: Redirect, 14 of 16 volume(s) processed.

Best Practice:

  • Pause Aggregate Reallocation Before Upgrade using:

::> storage aggregate reallocation quiesce -aggregate <aggr_name>

  • This safely checkpoints the job so it can be resumed later.  WAFL background jobs are suspended during takeover/giveback or node reboot.

  • Resume the reallocation job after upgrade and cluster health check using:

::>  storage aggregate reallocation restart -aggregate <aggr_name>

  • Job resumes from the last checkpoint unless -ignore-checkpoint true is specified.

::> storage aggregate reallocation restart -aggregate

  • This resumes from the saved checkpoint unless  -ignore-checkpoint true  is specified. 

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