Fujitsu ETERNUS VSS Hardware Provider 2.1 User Manual page 29

Chapter 3 Preparation
3.2 Shadow Copy Destination Disk Creation
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.
First backup
Source disk A
2GB
Second backup
Source disk C
2GB
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.
Source Disk
6GB
Partition 1
Partition 2
Source disk B
4GB
Source disk D
2GB
Shadow Copy
destination 1
Shadow Copy
destination 2
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ETERNUS VSS Hardware Provider 2.1 User's Guide
Copyright 2012 FUJITSU LIMITED
Shadow Copy
destination A
2GB
Shadow Copy
destination C
2GB
6GB
6GB
Shadow Copy
destination B
4GB
P3AM-4582-03ENZ0