Snapshot Clones

When distributing data in a storage system, you can use clones to improve efficiency.

The following figure illustrates cloning.

When cloning pairs, use a logical volume as the P-VOL and a DP-VOL as the S-VOL.

If you split pairs that have the clone attribute, the data of the entire P-VOL is copied to the S-VOL asynchronously to create a clone of the primary volume. When the copy completes, pairs are deleted and the S-VOL is unpaired (becomes a DP-VOL). This volume can be used as a volume in the same status as the P-VOL. This operation is referred to as cloning pairs.

A maximum of 1,024 clones (including the number of snapshots if you store them) can be created by using Thin Image.

Cloning pairs includes operations after the P-VOL is copied to the S-VOL, until volumes are unpaired. Volumes created by cloning are not included.