Running efficiency operations manually

You can run efficiency operations manually on a volume by using the volume efficiency start command.

Before you begin

Depending on the efficiency operation you want to run manually, you must have enabled deduplication or both data compression and deduplication on a volume.

About this task

If deduplication and data compression are enabled on a volume, data compression is run initially followed by deduplication.

Deduplication is a background process that consumes system resources while it is running. If the data does not change often in a volume, it is best to run deduplication less frequently. Multiple concurrent deduplication operations running on a storage system lead to a higher consumption of system resources.

You can run a maximum of eight concurrent deduplication or data compression operations per node. If any more efficiency operations are scheduled, the operations are queued.


Use the volume efficiency start command to start the efficiency operation on a volume.


The following command allows you to manually start only deduplication or data compression followed by deduplication on the volume VolA:volume efficiency start -vserver vs1 -volume VolA