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volmirror(8) System Manager's Manual volmirror(8) NAME volmirror - Mirror volumes on a disk or control default mirroring SYNOPSIS /usr/sbin/volmirror [-g diskgroup] [-d yes|no] medianame [ new_medi- aname ... ] /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 DESCRIPTION The volmirror command provides a mechanism to mirror all the contents of a specified disk, to mirror all currently un-mirrored 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. volmirror is generally called from the voldiskadm menus. It is not an interactive command and once called, will continue until completion of the operation or until a failure is detected. Due to the nature of generating mirror copies of volumes, this command may take a consider- able 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 mir- roring volumes from a specified disk, only simple single-subdisk vol- umes are mirrored. 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 the 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. volmirror supports the following options: Limit operation of the com- mand 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 com- mand, then rootdg is presumed. Change the default for subsequent vol- ume creation, depending on the option argument. If the option argument is yes, then all subsequent volumes created using the volassist command will automatically be created as mirrored volumes. If the option argu- ment supplied is no, then mirroring will be turned off by default. Mirror all existing volumes for the specified disk group. EXAMPLES The following are examples of the use of the volmirror command: /usr/sbin/volmirror -d yes disk01 This invocation will cause the disk named disk01 to have its contents mirrored to any available space on any available disk. Subsequent calls to volassist will cause created volumes to be mirrored by de- fault. /usr/sbin/volmirror -D This command will display the current status of default mirroring. It will output the string yes, if mirroring is currently enabled or no if not. /usr/sbin/volmirror disk02 disk03 This will cause any volumes on disk02 to be mirrored to disk03. FILES The defaults file for volassist parameters RELATED INFORMATION volintro(8), volassist(8). delim off volmirror(8)