NAME

mrtab − static information about disk mirrors

DESCRIPTION

The file /etc/mrtab describes the configuration of disk mirrors on the local machine.  It is read by disk mirroring commands mirror and unmirror.  The file consists of a number of lines of the form:

mirror_name  unit0   unit1

For example:

/dev/mr0   /dev/zd1c   /dev/zd2c

The three fields are separated by white space; a pound-sign (“#”) starts a comment which continues to the end of the line. 

The mirror_name is a fully qualified pathname to a mirror device inode. 

The two unit fields (unit0 and unit1) are fully qualified pathnames to the two DCC disk partitions that contain the the mirror’s units.

The /etc/mrtab file is only read by programs and never written by programs; the system administrator must maintain it manually with a text editor. 

If a disk mirror contains a filesystem, the filesystem and mirror are typically specified in the file /etc/fstab . 

FILES

/etc/mrtab

SEE ALSO

mirror(8), mr(4), fstab(5)

DYNIX