snapshot-volumes.adoc

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sm-storage/snapshot-volumes.html	sidebar	SANtricity, System Manager, E-Series, snapshot, volumes	You can create a snapshot volume and assign it to a host if you want to read or write snapshot data. The snapshot volume shares the same characteristics as the base volume (RAID level, I/O characteristics, and so on).

Snapshot volumes

You can create a snapshot volume and assign it to a host if you want to read or write snapshot data. The snapshot volume shares the same characteristics as the base volume (RAID level, I/O characteristics, and so on).

When you create a snapshot volume, you can designate it as read-only or read-write accessible.

When you create read-only snapshot volumes, you do not need to add reserved capacity. When you create read-write snapshot volumes, you must add reserved capacity to provide write-access.

¹ Base volume; ² Host; ³ Read-only snapshot volume; ⁴ Read-write snapshot volume; ⁵ Reserved capacity