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Types of data protection policies

You can assign Snapshot policies to FlexVol volumes and Infinite Volumes, and SnapMirror policies to data protection mirror relationships and SnapVault relationships.

Snapshot policy
When you assign a Snapshot policy, the policy configures the Snapshot copy creation schedule and retention rules.

You can assign the same Snapshot policy to multiple volumes. For example, you might configure a Snapshot policy to create a Snapshot copy every hour, at the end of every day, and at the end of every week, and then assign that same policy to more than one volume.

You can assign only one Snapshot policy to a volume. You can assign Snapshot policies to FlexVol volumes and Infinite Volumes.

Note: You cannot assign a Snapshot policy that contains the -snapmirror-label to an Infinite Volume.
SnapMirror policy
The SnapMirror policy specifies the configuration attributes of a relationship.

A SnapMirror policy can be applied to a data protection mirror relationship or a SnapVault relationship. Whether the SnapMirror policy has rules determines if the policy is applied to a SnapVault relationship or applied to a data protection mirror copy. If the policy has rules that define which Snapshot copies are protected, then that policy can be applied to SnapVault relationships only. If the policy does not have rules, then that policy can be applied to data protection mirror copies only.

Note: If no policy is assigned to a relationship, a default policy is assigned. If it is a data protection mirror relationship, the DPDefault policy is assigned. If it is a SnapVault relationship, the XDPDefault policy is assigned.