HP Serveur lame HP ProLiant BL465c Gen8 - Manual (Page 246)

• Do not use the drmfsrestore command in the following situations:
• When you back up a file system from a secondary volume to tape device by using the drmme-
diabackup command.
• When you restore a file system from the tape device to a secondary volume by using the
drmmediarestore command.
• When you mount a secondary volume by using the
drmmount
command.
• To ensure that the drmfsrestore command does not fail, make sure beforehand that the copy
groups of the target volume and the copy groups related to the target volume are in the following
pair statuses.
Pair status of copy group of the target volume:
The primary volume is PSUS, and the secondary volume is SSUS.
Pair status of copy group related to the target volume:
PSUS or SMPL.
Before performing restoration, you should use the RAID Manager pairdisplay command or
pairevtwait command to check the pair status of the copy group.
• While restoring data obtained in a VSS backup, you must not open the physical disk resource
properties on the cluster administrator window. If the properties are open, restoration may fail.
Precautions when executing commands in a cluster environment
• Do not access the operation-target volume (for example, by using Windows Explorer) while a
backup or restoration command is being executed in a Veritas Cluster Server for Windows envir-
onment. Doing so might prevent a cluster resource from being switched offline, and might thereby
cause an error to occur in the backup or restoration command.
• If the drmfsrestore command is executed when the cluster resource status of the file system is
offline and the environment setting is such that the dictionary map files are placed on a shared
disk, the
drmfsrestore command might result in an error because it will rely on cluster resources
that have gone offline.
The disk that stores the dictionary map files must be online. Before execution, make sure the disk
is online.
Precautions on forced termination of commands
Do not force termination of any running commands provided by Application Agent. If you force
termination of these commands, the pair status and backup catalog of the copy group may become
invalid. Perform operation as shown in “
Backing up the Application Agent operating
environment ” on page 214.
Backing up and restoring data between volumes
This section describes how to back up and restore data between the primary and secondary volumes.
System configuration
In a configuration that uses only one server, you use commands to back up and restore data between
the primary volume and secondary volume. Application Agent must be installed on the file server in
order to execute commands.
The following figure shows a system configuration for backing up and restoring data between volumes.
Operation for file systems 246