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Is there a command to verify that deduplication and data compression are actively working?

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ontap-9
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Applies to

ONTAP 9

Answer

Yes, please use the volume efficiency show -instance or volume efficiency show -vserver <vserver name> -volume <volume name> command to check the detailed status of deduplication and data compression.
 
Examples:

lccls9111001::> volume efficiency show -instance

                                     Vserver Name: svm9111001
                                      Volume Name: vt1
                                      Volume Path: /vol/vt1
                                            State: Enabled
                                           Status: Idle
                                         Progress: Idle for 10:11:30
                                             Type: Regular
                                         Schedule: -
                           Efficiency Policy Name: default
                           Blocks Skipped Sharing: 0
                             Last Operation State: Success
                     Last Success Operation Begin: Wed Jan 15 00:10:00 2025
                       Last Success Operation End: Wed Jan 15 00:10:00 2025
                             Last Operation Begin: Wed Jan 15 00:10:00 2025
                               Last Operation End: Wed Jan 15 00:10:00 2025
                              Last Operation Size: 0B
                             Last Operation Error: -
                                  Changelog Usage: 0%
                                Logical Data Size: 864KB
                               Logical Data Limit: 1.25PB
                             Logical Data Percent: 0%
                                       Queued Job: -
                     Stale Fingerprint Percentage: 0
                                      Compression: false
                               Inline Compression: false
                          Storage Efficiency Mode: -
                               Constituent Volume: false
                                    Inline Dedupe: false
                                  Data Compaction: false
                Cross Volume Inline Deduplication: false
            Cross Volume Background Deduplication: false
                         Extended Compressed Data: false

cluster1::> volume efficiency show -vserver vs1 -volume vol1
                        Vserver Name: vs1
                         Volume Name: vol1
                         Volume Path: /vol/vol1
                               State: Enabled
                              Status: Idle
                            Progress: Idle for 02:14:28
                                Type: Regular
                            Schedule: sun-sat@0
              Efficiency Policy Name: -
              Blocks Skipped Sharing: 0
                Last Operation State: Success
        Last Success Operation Begin: Wed Jul 14 03:08:44 2021
          Last Success Operation End: Wed Jul 14 03:08:46 2021
                Last Operation Begin: Wed Jul 14 03:08:44 2021
                  Last Operation End: Wed Jul 14 03:08:46 2021
                 Last Operation Size: 2.52MB
                Last Operation Error: -
                     Changelog Usage: 0%
                   Logical Data Size: 20.48MB
                  Logical Data Limit: 640TB
                Logical Data Percent: 0%
                          Queued Job: -
        Stale Fingerprint Percentage: 0
                         Compression: true
                  Inline Compression: true
             Storage Efficiency Mode: -
                  Constituent Volume: false
                       Inline Dedupe: false
                     Data Compaction: false
   Cross Volume Inline Deduplication: false
ross Volume Background Deduplication: false
            Extended Compressed Data: false

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