Hitachi VSP G400 User Guide

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

Hitachi VSP G400 Specifications

General

Brand	Hitachi
Model	VSP G400
Category	Storage
Language	English