/dev/rmt0 pointed to from an NFS of another server ? Post: 302336195

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Operating Systems AIX /dev/rmt0 pointed to from an NFS of another server ? Post 302336195 by Browser_ice on Tuesday 21st of July 2009 12:51:59 PM

07-21-2009

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/dev/rmt0 pointed to from an NFS of another server ?

I only about the principle of filesystems from the very basics on Linux and Windows. But I want to know if it is possible on an AIX 4.2 to create one NFS on a server which is pointing to a tape drive (/dev/rmt0) of another server ?

This is because we several backups to do on a 5 servers that need to be done at the same time but we are limited in the amount of tape drivers (one per server). So if there was a way to write directly to the tape drives of other servers, it would cut down on how long it takes to do them all.

So I was wondering if it is possible to use a tape drive as an NFS from another server.
- we are limited in the amount of free space
- the only compress tool we have is 'compress'
- we have only one processor (CPU) per server

p.s.: I am currently looking on how to compress pipe to the tape driver directly but need to look at other alternatives in case it does not work

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rpcdebug

rpcdebug(8)						      System Manager's Manual						       rpcdebug(8)

NAME

       rpcdebug - set and clear NFS and RPC kernel debug flags

SYNOPSIS

       rpcdebug -vh
       rpcdebug -m module
       rpcdebug -m module -s flags...
       rpcdebug -m module -c flags...

DESCRIPTION

       The  rpcdebug  command  allows an administrator to set and clear the Linux kernel's NFS client and server debug flags.  Setting these flags
       causes the kernel to emit messages to the system log in response to NFS activity; this is typically useful when debugging NFS problems.

       The first form in the synopsis can be used to list all available debug flags.  The second form shows the currently set debug flags for  the
       given module.  The third form sets one or more flags, and the fourth form clears one or more flags.

       The value all may be used to set or clear all the flags for the given module.

OPTIONS

       -c     Clear the given debug flags.

       -h     Print a help message and exit.  When combined with the -v option, also prints the available debug flags.

       -m module
	      Specify which module's flags to set or clear.  Available modules are:

	      nfsd   The NFS server.

	      nfs    The NFS client.

	      nlm    The Network Lock Manager, in either an NFS client or server.

	      rpc    The Remote Procedure Call module, in either an NFS client or server.

       -s     Set the given debug flags.

       -v     Increase the verbosity of rpcdebug's output.

FILES

       /proc/sys/sunrpc/{rpc,nfs,nfsd,nlm}_debug
	      procfs-based interface to kernel debug flags.

SEE ALSO

       rpc.nfsd(8), nfs(5), syslogd(8).

BUGS

       Bugs can be found or reported at http://nfs.sf.net/.

AUTHOR

       Program by Olaf Kirch <okir@suse.de> and <frederic.jolly@bull.ext.net>.	Manpage by Greg Banks <gnb@melbourne.sgi.com>.

								    5 Jul 2006							       rpcdebug(8)