volmirror(8)volmirror(8)NAMEvolmirror - Mirrors volumes on a disk or control default mirroring
/usr/sbin/volmirror [-g diskgroup] [-d yes|no] medianame [new_medi‐
/usr/sbin/volmirror [-g diskgroup] [-d yes|no] -a [new_medianame...]
/usr/sbin/volmirror [-g diskgroup] [-d yes|no]
/usr/sbin/volmirror [-g diskgroup] -D
The volmirror command supports the following options: Limits operation
of the command to the given disk group, as specified by disk group ID
or disk group name. The medianame operands will be evaluated relative
to the given disk group. If no disk group is supplied to the volmirror
command, rootdg is presumed. Changes the default for subsequent volume
creation, depending on the option argument. If the option argument is
yes, all subsequent volumes created using the volassist command will
automatically be created as mirrored volumes. If the option argument
supplied is no, mirroring will be turned off for future volumes by
default. Displays current default status for mirroring. Mirrors all
existing volumes for the specified disk group.
The volmirror command provides a mechanism to mirror all the contents
of a specified disk, to mirror all currently unmirrored volumes in the
specified disk group, or to change or display the current defaults for
mirroring. All volumes that have only a single plex (mirror copy), will
be mirrored by adding an additional plex.
Volumes containing subdisks that reside on more than one disk will not
be mirrored by volmirror.
The volmirror command is generally called from the voldiskadm menus. It
is not an interactive command and once called, will continue until com‐
pletion of the operation or until a failure is detected.
Due to the nature of generating mirror copies of volumes, this command
may take a considerable time to complete.
In the first listed form of the command, the disk media name is sup‐
plied on the command line to volmirror. That name is taken to be the
only disk from which volumes should be mirrored. In the case of mirror‐
ing volumes from a specified disk, only simple single-subdisk volumes
In the first and second listed forms of the command, the new_medianame
... parameter identifies a new disk media name (or set of names). The
mirroring operation being performed will use these names as targets on
which to allocate the mirrors. An error will result if the same disk is
specified for both the source and target disk and if no other viable
targets are supplied.
The following are examples of the use of the volmirror command. The
following command mirrors the contents of the disk named disk01 to any
available space on any available disk. Subsequent calls to volassist
will cause created volumes to be mirrored by default. volmirror-d yes
disk01 The following command displays the current status of default
mirroring. It prints the string yes if mirroring is currently enabled
or no, if not. volmirror-D The following command mirrors any volumes
on disk02 onto disk03. volmirror disk02 disk03
The defaults file for volassist parameters.
SEE ALSOvolintro(8), volassist(8), volrootmir(8)volmirror(8)