HP XP P9000 Replication Manager Software 7.6.0-00 Application Agent CLI Reference Guide

Description
This command conceals or reveals physical volumes of storage system devices connected to the server.
By concealing physical volumes from the server and controlling access, you can prevent errors caused
by user operations.
In addition, you can conceal physical volumes and obtain backups either in Veritas Storage Foundation
environments or by using Fast Snap or Snapshot, and then store multiple generations of these backups
on secondary volumes. You can then back up each generation to a tape device via the backup server.
Because you can target all copy groups managed by Application Agent, you can perform an initial
setup of a volume-concealed environment for backup servers. By specifying a backup ID and copy
group, you can also execute this command after narrowing the list of potential targets.
You can also use this after starting operations, to conceal or reveal physical volumes of storage system
devices connected to the server.
When the restoration command is terminated by an error on the file server or database server, the
disk signature of the copy group can be displayed and updated on the backup server. This helps
recovery from the error that occurred during the restoration.
Note that you must set DEVICE_DETACH=ENABLE in the RAID Manager-linkage definition file
(DEFAULT.dat) when specifying the -detach, -attach, or -rescan options.
Arguments
backup-ID
Specify the backup ID of a backup catalog. When a backup ID is specified, the target physical volumes
are the secondary volumes of the copy groups registered in the backup catalog.
-copy_group copy-group-name
Specify a valid copy group name. The target physical volumes are the secondary volumes of the copy
group specified.
-detach
Conceals the physical volumes of the storage system from the server, and instructs the OS of the server
to perform a disk rescan.
-attach
Reveals (publishes) physical volumes of the storage system that are concealed from the server, and
instructs the OS of the server to perform a disk rescan.
-noscan
Specify this to stop the OS from being instructed to perform a disk rescan, after a volume is concealed
or revealed. Note that if even one volume is concealed or revealed, an OS disk rescan instruction
(-rescan) is necessary. Because an inconsistency might develop between the OS and the actual
disk configuration if no disk rescan instruction is performed, operation is not guaranteed if operations
other than drmdevctl -detach or drmdevctl -attach are executed.
This option must be specified when either the -detach or -attach option is specified.
-rescan
Instructs the OS to perform a disk rescan. A disk rescan is required after a volume is concealed or
revealed. The time required to process a disk rescan depends on the hardware configuration, and
particularly on the number of connected disks.
This option cannot be specified with other options.
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