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PowerScale OneFS 9.3.0.0 CLI Administration Guide

View inline deduplication reports

You can view reports to monitor the results of inline deduplication on your clusters.

Inline deduplication is supported on Isilon F810 nodes, H5600 nodes, and on PowerScale F200 and F600 nodes.

You must have the ISI_PRIV_STATISTICS privilege to run the isi statistics data-reduction or isi dedupe stats commands.

  1. Log in to your cluster as a user with the administrator role.
  2. To view data reduction statistics, enter the following command:
    # isi statistics data-reduction
    A report similar to the following appears.
                  Recent Writes Cluster Data Reduction
                               (5 mins)
    --------------------- ------------- ----------------------
    Logical data                  3.20M                 47.74M
    Zero-removal saved                0                      -
    Deduplication saved               0                      0
    Compression saved                 0                      0
    Preprotected physical         3.20M                 47.74M
    Protection overhead           6.39M                 94.81M
    Protected physical            9.59M                152.79M
    
    Zero removal ratio         1.00 : 1                      -
    Deduplication ratio        1.00 : 1               1.00 : 1
    Compression ratio          1.00 : 1               1.00 : 1
    Data reduction ratio       1.00 : 1               1.00 : 1
    Efficiency ratio           0.33 : 1               0.31 : 1
    --------------------- ------------- ----------------------
  3. To view inline deduplication statistics, enter the following command:
    # isi dedupe stats
    Statistics similar to the following appear:
      Cluster Physical Size: 86.14T
                  Cluster Used Size: 248.93G
          Logical Size Deduplicated: 1.17T
                     Logical Saving: 611.10G
        Estimated Size Deduplicated: 124.11G
          Estimated Physical Saving: 63.20G
    
    

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