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Low data reduction ratio observed for backup workloads

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Category:
ontap-9
Specialty:
core
Last Updated:

Applies to

  • Ontap 9
  • Veeam Backup
  • Storage Efficiency
  • Compression

Issue

Significantly low storage efficiency ratio observed:

::*>  aggregate show-efficiency -instance
  (storage aggregate show-efficiency)
                       Name of the Aggregate: xxx
                Node where Aggregate Resides: xxx
Logical Size Used by Volumes, Clones, Snapshot Copies in the Aggregate: 57.55TB
                         Total Physical Used: 54.82TB
              Total Storage Efficiency Ratio: 1.05:1
Total Data Reduction Logical Used Without Snapshots: 57.55TB
Total Data Reduction Physical Used Without Snapshots: 54.82TB
Total Data Reduction Efficiency Ratio Without Snapshots: 1.05:1
Total Data Reduction Logical Used without snapshots and flexclones: 57.55TB
Total Data Reduction Physical Used without snapshots and flexclones: 54.82TB
Total Data Reduction Efficiency Ratio without snapshots and flexclones: 1.05:1
          Logical Space Used for All Volumes: 57.55TB
         Physical Space Used for All Volumes: 54.82TB
         Space Saved by Volume Deduplication: 2.17TB
Space Saved by Volume Deduplication and pattern detection: 2.69TB
          Volume Deduplication Savings ratio: 1.05:1
           Space Saved by Volume Compression: 45.23GB
            Volume Compression Savings ratio: 1.00:1
Space Saved by Inline Zero Pattern Detection: 531.9GB
              Volume Data Reduction SE Ratio: 1.05:1
         Logical Space Used by the Aggregate: 54.82TB
        Physical Space Used by the Aggregate: 54.82TB
     Space Saved by Aggregate Data Reduction: 0B
           Aggregate Data Reduction SE Ratio: 1.00:1
        Logical Size Used by Snapshot Copies: 20.59MB
       Physical Size Used by Snapshot Copies: 5.01MB
        Snapshot Volume Data Reduction Ratio: 4.11:1
      Logical Size Used by FlexClone Volumes: 0B
    Physical Sized Used by FlexClone Volumes: 0B
       FlexClone Volume Data Reduction Ratio: 1.00:1
Snapshot And FlexClone Volume Data Reduction SE Ratio: 4.11:1
                   Number of Volumes Offline: 0
              Number of SIS Disabled Volumes: 1
   Number of SIS Change Log Disabled Volumes: 0

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