HP StorageWorks P9000 Replication Manager Software 7.1 CLI User Guide (TB584-96026, May 2011)

Precautions when executing commands simultaneously
While a command is executing, if a user attempts to execute another command that cannot be executed
concurrently with the executing command, the system will attempt to execute the latter command
indefinitely until the former command terminates. To prevent the system from attempting to execute
such a command indefinitely (until the former command terminates), you will need to edit the
init.conf file. For details, see “Stopping retry operations caused by a command that cannot execute
concurrently with other commands” on page 240.
Precautions for executing commands in a cluster environment
In a cluster environment, before executing a Application Agent command, you must set the environment
variable DRM_HOSTNAME as shown below.
PROMPT> set DRM_HOSTNAME=virtual-server-name
If you run a backup and restore on Windows Server 2003 in a cluster configuration that uses a VCS
cluster, first use the Windows Services window to make sure that the startup type of the Windows
Management Instrumentation service is not set to Disabled.
If the startup type is disabled, backup commands with cold specified in the -mode option and restore
commands with the -resync option specified will terminate in an error, with a message indicating
that the attempt to switch cluster resources offline failed.
Precautions regarding backup servers
Precautions when mounting
• The drmmount command stores information about the mounted secondary volume in the following
file:
Application-Agent-installation-directory\tmp\mntpt.dat
Do not delete this file while the secondary volume is being mounted by the drmmount command.
• When you execute the drmmount command with a backup ID specified, the copy group corres-
ponding to the backup ID is locked. Such copy groups can be unlocked by executing the drmu-
mount command with the same backup ID. As such, if you use the drmmount command to mount
the secondary volume, make sure to use the drmumount command to unmount the volume. If, for
some reason, the volume cannot be unmounted by using the drmumount command, use OS
commands to unmount the volume, and then use the drmcgctl command to unlock the copy
group corresponding to the backup ID specified using the drmumount command.
• If NetBackup is used with tape tape backup management software, the following points should
be taken into consideration with respect to the drmmount command when the -mount_pt option
is specified:
• If the drmmediabackup command and the drmmediarestore command are used with an
arbitrary directory specified in the drmmount command’s -mount_pt option and the secondary
volume is allocated to a mount point, Application Agent requires that the Policy registered with
NetBackup has the cross mount point checkbox set to ON.
• If the drmmediabackup command and the drmmediarestore command are used with an
arbitrary directory specified in the drmmount command’s -mount_pt option, the -raw option
cannot be specified in the drmmediabackup command.
Application Agent operations230