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Creating Thin Image pairs and defining them in snapshot or
consistency groups using CCI
You can create pairs and define the pairs in a snapshot group or in a
consistency group. Define pairs to consistency groups to perform pair tasks
on all of the pairs within the group. This task describes how to do this using
CCI.
Note: If the host is down, the CCI command might be rejected and the pair
not defined in the group. In this case, you can use Device Manager - Storage
Navigator to create the pair and assign it to a group.
Procedure
1.
The following is an example of using the CCI raidcom command to create a
pair specifying the P-VOL (LDEV#10:10), the S-VOL (LDEV#20:20), the pool
134
Hitachi Thin Image User Guide for Hitachi Virtual Storage Platform G Series and F Series
In Pair Type, select Snapshot to create a pair with the snapshot
attribute. Select Clone to create cloned pairs.
Click Select Pool, and then select a pool in the Select Pool window.
Select Create New in Snapshot Group.
Enter 1 for Number of Snapshot Data per Primary Volume.
Select Snapshot Group Configuration.
Enter values for Prefix and Initial Number.
Click Add.
Select No for Create Pairs using Volumes as Root Volumes.
Select a primary volume for which you want to specify two secondary
volumes from the Available Primary Volumes table.
Select Create New in Snapshot Group.
Enter 1 for Number of Snapshot Data per Primary Volume.
Select Snapshot Group Configuration.
Enter values for Prefix and Initial Number.
Click Add.
Click Next.
Select three secondary volumes in the Assign Secondary Volumes
window, and then click Set.
Create the Thin Image pair and define the pair in a snapshot or
consistency group. To do this using CCI, run the raidcom add snapshot
command.
Note: Define pairs that share the same P-VOL in different
snapshot groups.
Managing Thin Image Pairs
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