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Unreferenced space on object storage is not reclaimed even exceeding unreclaimed-space-threshold

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Applies to

  • Cloud Volumes ONTAP (CVO)
  • Cloud Tiering
  • AWS S3

Issue

  • storage aggregate show-space shows Logical Unreferenced Capacity keep growing even exceeding unreclaimed-space-threshold  value.

Feature                                           Used      Used%
--------------------------------      ----------------      -----
Logical Used                                     301TB       -
Referenced Capacity                             27.9TB       -
Logical Unreferenced Capacity                    273TB       - 
Space Saved by Storage Efficiency                944MB       -
Total Physical Used                              301TB       -

Note :  unreclaimed-space-threshold can be found with  storage aggregate object-store show command in advanced mode.

  • Following message is shown frequently.

  XXX XXX XX XX:XX:XX +0000 [XXX: OscLowPriThreadPool: object.store.unavailable:EMERGENCY]: Unable to connect to the object store "XXX" from node XXX-XXX-XXX-XXX. Reason: Expired token.

 

 

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