Distributing data in the P-VOL to multiple users
Create the same number of leaf volumes as the number of users to whom you want to distribute data. This allows you to distribute data in the P-VOL without increasing loads to the P-VOL.
Distributing updated data in the P-VOL to specified users
When you update the P-VOL and want to give it only to the specified users (S-VOLs 5 and 6 in the figure), do the following:
- Create cascaded pairs, and distribute data in the P-VOL. Assign users to whom you want to distribute the updated data, and users to whom you do not want to distribute the updated data to separate node volumes.
- Delete the pairs in the node volume where you assigned users you do not want to distribute the updated data to (S-VOL 1 in the figure).
- Update the P-VOL.
Creating a new distributor with cloned pairs
- Create cascaded pairs and distribute data in the P-VOL. Assign the clone attribute to the volume to be a new distributor (S-VOL 3 in the figure).
- Clone pairs.
By cloning pairs, S-VOL 3 and S-VOL 1 become unpaired volumes (DP-VOLs) in the same status, and S-VOL 3 can be a new distributor. As a result, the overhead of the Thin Image pairs can be reduced.