How Thin Image Works; How Thin Image Uses Pools And Pool Volumes - Hitachi VSP G1000 User Manual

Thin Image
Use the Thin Image software on the Device Manager - Storage Navigator
(HDvM - SN) computer that is connected to the service processor (SVP) by
means of the TCP/IP local area network (LAN).
Dynamic Provisioning
Use the HDP software on the HDvM - SN computer. A user license is required
to use HDP.
Since Thin Image uses a portion of the HDP licensed capacity for its pool
capacity, reserve enough HDP licensed capacity to run both HDP and Thin
Image and to accommodate the Thin Image pairs or pools that you will
create.
Thin Image and HDP pool-VOLs are also referred to as used volumes. The
licensed capacity must exceed the total capacity of used volumes.
CCI
When you use CCI to define multiple Thin Image pairs in a consistency group,
you can only specify one consistency group for a group defined by the
configuration definition file for CCI.
Note: The configuration definition file for CCI is a group that is not a
consistency group.
If you create a new pair and define the pairs in a consistency group for a
group you defined using the configuration definition file for CCI, and the pair
is already defined in a consistency group, the pair is defined in the same
consistency group even if you try to create a new pair and assign it to a
different consistency group.
Related tasks
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How Thin Image works

This topic explains how Thin Image works.

How Thin Image uses pools and pool volumes

Thin Image stores snapshot data in DP pools (Pool Type: Dynamic
Provisioning) or Thin Image pools (Pool Type: Thin Image). Unless they are
defined otherwise, both DP pools and Thin Image pools are referred to as
"pools". A pool consists of multiple pool volumes (pool-VOLs) which are, as a
group, the container for the snapshot data.
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Hitachi Thin Image User Guide for Hitachi Virtual Storage Platform G Series and F Series
Splitting Thin Image pairs to store snapshot data using CCI
Overview of Thin Image
on page 137