3. The storage system receives the command. Then it stores the snapshot
data for the consistency group that is the target of the consistency group
pair-split, or clones pairs when a host issues a write request to the Thin
Image pair's P-VOL that is assigned to the consistency group.
4. A host issues a write request to the Thin Image pair’s P-VOL that is
assigned to the consistency group.
5. The pairs are split and the snapshot data is stored.
Related concepts
•
Workflow for defining Thin Image pairs and defining them in snapshot or
consistency groups using Device Manager - Storage Navigator on page 135
• Notes on storing snapshot data, and on cloning pairs on page 223
Using consistency group pair-split with shared volumes
If you are sharing Thin Image P-VOLs with ShadowImage, Universal
Replicator, or TrueCopy S-VOLs within a storage system, you can use
consistency group pair-split to split the pairs that are defined in a consistency
group to store the snapshot data. Consistency group pair-split maintains
consistency for the Thin Image S-VOLs that are defined in the consistency
group.
The following figures illustrate these configurations.
The following figure shows the consistency group pair-split configuration
when you are sharing Thin Image P-VOLs with Universal Replicator S-VOLs.
138 Managing Thin Image Pairs
Hitachi Thin Image User Guide for Hitachi Virtual Storage Platform G Series and F Series
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