FUJITSU VSS Hardware Provider 2.1 User Manual

Page 29

Chapter 3 Preparation
3.2 Shadow Copy Destination Disk Creation

ETERNUS VSS Hardware Provider 2.1 User’s Guide

P3AM-4582-03ENZ0

Example 2

When source disks A (2GB) and B (4GB) are backed up in the first backup, and source disks C (2GB)
and D (2GB) are backed up in the second backup, Shadow Copy destination volumes A (2GB), B
(4GB), and C (2GB) are created as Shadow Copy destinations and these volumes are registered in the
backup disk pool management function.

In the first backup, Shadow Copy destinations A and B are automatically selected and used as Shadow
Copy destinations. In the second backup, Shadow Copy destinations A and C are automatically
selected and used as Shadow Copy destinations.

Example 3

Create the same number of Shadow Copy destination disks as the Shadow Copy sessions that are
executed concurrently and register these disks in the backup disk pool management function.
For example, when there are two partitions in a LUN and the shadow copies for these partitions are
executed separately, two Shadow Copy destination disks are required.

2GB

4GB

2GB

4GB

Source disk A

Source disk B

Shadow Copy
destination A

Shadow Copy
destination B

First backup

Second backup

Shadow Copy
destination C

2GB

Source disk C

Source disk D

2GB

Shadow Copy
destination 2

6GB

Shadow Copy
destination 1

6GB

Source Disk

6GB

Partition 1

Partition 2