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Snapshots are space-efficient, consisting of pointers to frozen data blocks, and they consume no extra space when they are taken. When a thin clone is created from a snapshot and mapped to a host, only new data written to the thin clone will consume additional storage space.
PowerStore snapshots can be taken of volumes that are mapped as LUNs to a Hyper-V environment regardless of content. This ability applies to boot-from-SAN volumes, data volumes, CSVs, pass-through disks, in-guest iSCSI volumes, and vFC volumes. These volumes can be replicated to other PowerStore clusters for DR or archive purposes along with their snapshots and thin clones.
For more information about PowerStore snapshots, thin clones, refreshes, and restores, see the online help in PowerStore Manager.
PowerStore snapshots allow administrators to perform the following actions in Hyper-V environments:
PowerStoreOS 3.5 introduces secure snapshot as an optional setting for volumes and volume groups. The secure snapshot feature provides the following benefits for Microsoft environments:
If secure snapshot is disabled, a volume or snapshot created when secure snapshot was enabled can only be deleted when the retention period expires.