NetApp
Cluster : Configuration > Snapshot Policies : Managing Snapshot policies : Creating Snapshot policies
Creating Snapshot policies
You can create a Snapshot policy to specify the frequency and the maximum number of automatically created Snapshot copies.
Steps 
1.
From the home page, double-click the appropriate storage system.
2.
Expand the Cluster hierarchy in the left navigation pane.
3.
Click Configuration > Snapshot Policies.
4.
Click Create.
5.
In the Create Snapshot Policy dialog box, specify the policy name.
6.
Click Add, and then specify the schedule name, the maximum number of Snapshot copies that you want to retain, and the SnapMirror label name.
7.
Click OK, and then click Create.

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