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Chapter 1 Installation Procedure
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A control volume is used when a server issues control I/O to the relevant disk array. Select one of the
logical disks connected to each server for each disk array as the volume for issuing I/O to that disk
array and register the volume in the Volume List.
The use of a control volume has the following effects, in particular, in the backup server environment:
• Operation can also be continued even when an RV connected to the server or a link-volume (LV) for
the snapshot function cannot be accessed from the server (operating system) due to a data replication
or snapshot operation.
• From a server that is not connected to an MV to be operated, Replicate and Separate can be executed.
The logical disk which can be operated using the control volume from a server is a logical disk which
is allowed to access that server by the Access Control setting for the disk array or a logical disk
paired with a logical disk which is allowed to access that server.
For details of a control volume, refer to 3.9 “Control Volume” also.
For details of the Volume List Display function, refer to the help of the Volume List Display screen or
the “Data Replication User’s Manual (Function Guide)”.
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Click the Windows [Start] button and select [Storage Manager Volume List] and [Volume List Display]
from [Programs] ([All Programs] for Windows Server 2003) to start the Volume List Display function.
Figure 1-8 Volume List Display Screen