Hitachi VSP G1000 User Manual page 131

• If you want to use a ShadowImage volume as a Thin Image P-VOL when
an available MU number does not exist, you must have completed the
following:
1. Deleted the Thin Image pairs of MU numbers 0 to 2.
2. Created the ShadowImage pair.
3. Re-created the Thin Image pair with an MU number of 3 or greater
assigned.
Procedure
1. In the Explorer pane, click Storage Systems.
2. Expand the storage system tree, expand Replication, and then click
Local Replication.
3. In the Local Replication window, select a P-VOL on the TI Root
Volumes tab or a snapshot group in the Snapshot Groups tab, and
then click Create TI Pairs.
4. In Create Pairs using Volumes as Root Volumes or Use Primary
Volumes of Thin Image Pairs, select Yes or No.
5. In Select By, select LUN to create a pair by specifying LUN. Select
LDEV to create a pair without specifying LUN.
6. From the Available Primary Volumes table, select the LDEV you want
to assign as the P-VOL.
Note: The nondisruptive migration volumes do not appear in the
Available Primary Volumes table.
7. In Cascade, select Enable to create a cascaded pair.
8. In Pair Type, select Snapshot to create a pair with the snapshot
attribute. Select Clone to create cloned pairs. Skip to step 11 if you
selected No for Create Pairs using Volumes as Root Volumes.
9. Click Select Pool.
10. In the Select Pool window, select a pool from the Available Pools
table.
11. Click OK.
12. For Snapshot Group, select either Create New to assign the pair to a
new snapshot group, or Use Existing to assign the pair to an existing
snapshot group. When you create a Thin Image pair, you must assign it
to a snapshot group.
Complete one of the following:
• For Create New, enter values for Number of Snapshot Data per
Primary Volume, Prefix, and Initial Number, and then select
Snapshot Group Configuration.
• For Use Existing, select Snapshot Group Configuration, and then
select the snapshot group to which you want to assign the pair from
the Available Snapshot Groups table. If you select All, enter a
value in Number of Snapshot Data per Primary Volume.
Hitachi Thin Image User Guide for Hitachi Virtual Storage Platform G Series and F Series
Managing Thin Image Pairs 131