NAME

rmtab − local file system mount statistics

DESCRIPTION

The /etc/rmtab file contains a record of all clients that mounted remote file systems from this machine.  Whenever a remote mount is done, an entry is made in the rmtab file of the machine serving that file system.  The umount removes the entry  of a remotely mounted file system. The umount −a command broadcasts to all servers that they should remove all entries from rmtab created by the sender of the broadcast message.  By placing a umount −a command in /etc/brc, rmtab tables are purged of entries made by a crashed host, which upon rebooting did not remount the same file systems it had previously.  The table is a series of lines of the following form. 

 hostname:directory

This table only preserves information between crashes and is read only by mountd(1M) when it starts.  The mountd keeps an in-core table to handle requests from programs like showmount(1M) and shutdown(1M).

WARNINGS

Although the rmtab table is close to the truth, it is not always 100 percent accurate. 

AUTHOR

Sun Microsystems, Inc. 

FILES

/etc/rmtab

SEE ALSO

mount(1M), mountd(1M), showmount(1M), shutdown(1M), umount(1M). 

Hewlett-Packard Company  —  May 11, 2021