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Running efficiency operations depending on the amount of new data written

You can modify the efficiency operation schedule to run deduplication or data compression when the number of new blocks written to the volume after the previous efficiency operation (performed manually or scheduled) exceeds a specified threshold percentage.

About this task

If the schedule option is set to auto, the scheduled efficiency operation runs when the amount of new data exceeds the specified percentage. The default threshold value is 20 percent. This threshold value is the percentage of the total number of blocks already processed by the efficiency operation.


  1. Modify the threshold percentage value by entering the following command:sis config -s auto@num path

    num is a two-digit number to specify the percentage.

    path is the complete path to the volume.


The following command modifies the threshold percentage value to 30 percent for the volume VolA:sis config -s auto@30 /vol/VolA