Space management policies

What space management policies are

Space management policies enable you to automatically reclaim space for a flexible volume when that volume is nearly full. You can configure a flexible volume to automatically reclaim space by using the following policies:

Grow a flexible volume automatically when it is nearly full.
This policy is useful if the containing aggregate has enough space to grow the flexible volume. You can grow a volume in increments and set a maximum size for the volume.
Automatically delete snapshots when the flexible volume is nearly full.
For example, you can automatically delete snapshots that are not linked to snapshots in cloned volumes or LUNs, or you can define which snapshots you want to delete first--your oldest or newest snapshots. You can also determine when to begin deleting snapshots--for example, when the volume is nearly full or when the volume's snapshot reserve is nearly full.

You can define the order in which you want to apply these policies when a flexible volume is running out of space. For example, you can automatically grow the volume first, and then begin deleting snapshots, or you can reclaim space by first automatically deleting snapshots, and then growing the volume.

For more information about determining and configuring your space management policy, see your Block Access Management Guide.