fdmns man page on DigitalUNIX

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fdmns(4)							      fdmns(4)

       fdmns - contains file domain names and devices

       The  fdmns  directory  ensures access to file domains by providing sym‐
       bolic links to every volume in the file domain.	The mkfdmn, rmvol, and
       addvol  utilities  automatically manage the fdmns directory.  Each file
       domain is described by its own subdirectory within the fdmns directory.

       Back up the fdmns directory structure regularly using the vdump utility
       or  any	other backup utility (dump, tar, cpio). If the contents of the
       fdmns directory are deleted or corrupted, restore  the  directory  from
       your  most  recent backup tape.	You must also restore the fdmns direc‐
       tory after installing a new version of the operating system.

       Always keep a hardcopy record of each file domain  and  its  associated
       volumes in case a backup copy of the fdmns directory is unavailable. If
       you have a record, you can reconstruct the fdmns	 directory  structure.
       The following is a sample fdmns directory:

       total  2	 drwxr-x---	2  root	   system    512 Nov 24 18:35 scratch/
       drwxr-xr-x     2 root  system	512 Nov 24 18:35 usr/

	./scratch: total 0 lrwxr-x---	  1 root    system    10 Oct 23	 15:13
       dsk10c@	->  /dev/disk/dsk10c lrwxr-x---	    1 root    system	10 Oct
       24 11:33	 dsk11c@  ->  /dev/disk/dsk11c	lrwxr-x---     1  root	  sys‐
       tem     9 Oct 13 18:29 dsk8c@ -> /dev/disk/dsk8c

	./usr:	total  0  lrwxr-x---	 1  root    system	9 Oct 24 10:52
       dsk2g@ -> /dev/disk/dsk2c lrwxr-x---	1 root	  system     9 Nov  24
       10:35 dsk9c@ -> /dev/disk/dsk9c

       Do  not	remove or modify the contents of this directory.  If the fdmns
       file becomes corrupted, you can no longer access (or mount) any fileset
       in the file domains.

       advfs(4), vdump(8), mkfdmn(8), vrestore(8), showfdmn(8)


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