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Snapdrive for Unix

Volume-based SnapRestore for space reservation

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For space reservation with volume based snap reserve you need to set space-reservations-volume-enabled option in the snapdrive.conf file.

The space-reservations-volume-enabled option is used to set space guarantee policy on volume and can take the following three values.

  • Snapshot: This is the default value. Space guarantee on the volume does not change.

  • volume: Space guarantee on the volume is at the volume level.

  • none: Space guarantee is set as none.

Following table describes the behavior of volume-based snap reserve for space reservation.

No space reserve CLI option used; -vbsr execute is specified space-reservations-volume-enabled= Result

none

snapshot

Space guarantee on the volume does not change.

none

none

Attempt to set space guarantee as “none” for the volumes.

-reserve

configuration value is over-ridden

Attempt to set space guarantee for volumes as "volume"

-noreserve

configuration value is over-ridden

Attempt to set space guarantee for volumes as "none"

none

volume

Attempt to set space guarantee for volumes as "volume"
Note -vbsr preview does not check for any of the space reservation options.