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The volume show-footprint command shows space used in Delayed Frees

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ontap-9
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Applies to

  • ONTAP 9.2 and later
  • FabricPool

Issue

  • There is a big value in Delayed Frees, and it may not change when running the volume show-footprint command, even if set  -tiering-policy all.
  • There is a big value at Delayed Frees as seen below, and it is the remaining data on performance tier.

Cluster::> volume show-footprint
output ommitted)
      Vserver : SVM1
      Volume  : vol1

      Feature                                          Used    Used%
      --------------------------------           ----------    -----
      Volume Data Footprint                         15.41GB       0%
             Footprint in Performance Tier
                                                     4.65GB      25%
             Footprint in <Cloud Tier name>
                                                    14.14GB      75%
      Volume Guarantee                                   0B       0%
      Flexible Volume Metadata                      858.1MB       0%
      Cross Volume Deduplication                        4KB       0%
      Delayed Frees                                  3.38GB       0%
      Total Footprint                               19.62GB       0%

  • This symptom may also be observed total aggregate used size is more than the total volume size.

 

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