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Snapshot policies provide automated scheduling of SnapVX snapshots on PowerMax arrays. Policies are customizable with rules that specify when to take snapshots, how many to take, and how long to keep them. Compliance requirements can also be specified to send alerts if the rules of a policy are not being met. Snapshot policies create and retain snapshots according to the rules of each policy. Snapshot policies support up to 1,024 snapshots per source device and 65 million snapshots per PowerMax array.
Snapshot policies are applied to storage groups (SGs) to protect applications with consistent regularly scheduled snapshots. Applications can be protected by multiple policies with differing schedules and retention parameters, according to requirements. A single policy can protect multiple applications. Manual snapshots are supported along with snapshot policies to satisfy any on-demand requirements.
Parameters defined within each policy are as follows:
Note: All parameters are defined during creation and can be changed on active policies except for Policy Type and Secure Snaps options.
The following figure shows an example of creating a snapshot policy.