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Full Discussion: Backup system to NFS Appliance device
Top Forums UNIX for Dummies Questions & Answers Backup system to NFS Appliance device Post 39872 by Perderabo on Tuesday 2nd of September 2003 06:07:35 PM
Old 09-02-2003
Maybe your backup script never worked.

When the shell encounters "> $TAPEDRIVE" It will open /mavesbu/backup and connect that file to stdout. If the file did not exist, it will be created. At this point, the output is destined to go to /mavesbu/backup.

Then the shell moves along to ">> $MAILMSG". Here it will open $MAILMSG in append mode and connect stdout to that. Now the output will go to whatever file is in MAILMSG. You have overridden the effect of your earlier "> $TAPEDRIVE". (Except that if the file was created, it will continue to exist.)

Next the shell encounters 2>&1 and so stderr will now go to where ever stdout is pointing.

At this point, the shell will run the pipeline. By the time that the cpio program is invoked, it has no file descriptors pointing to /mavesbu/backup.

The command was ok until ">> $MAILMSG" which is what is screwed you up. Are you sure that the original script had that?

Go to a completely empty directory. Try this command:
date > one >> two

What do you get in one? And in two? That syntax is wrong.
 

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LEARN ABOUT REDHAT

nfsd

rpc.nfsd(8)						      System Manager's Manual						       rpc.nfsd(8)

NAME

       rpc.nfsd - NFS server process

SYNOPSIS

       /usr/sbin/rpc.nfsd [-p port] nproc

DESCRIPTION

       The  rpc.nfsd program implements the user level part of the NFS service. The main functionality is handled by the nfsd.o kernel module; the
       user space program merely starts the specified number of kernel threads.

       The rpc.mountd server provides an ancially service needed to satisfy mount requests by NFS clients.

OPTIONS

       -p port
	      specify a diferent port to listen on for NFS requests. By default, rpc.nfsd will listen on port 2049.

       nproc  specify the number of NFS server threads. By default, just one thread is started. However, for optimum performance  several  threads
	      should be used. The actual figure depends on the number of and the work load created by the NFS clients, but a useful starting point
	      is 8 threads. Effects of modifying that number can be checked using the nfsstat(8) program.

SEE ALSO

       rpc.mountd(8), exportfs(8), rpc.rquotad(8), nfsstat(8).

AUTHOR

       Olaf Kirch, Bill Hawes, H. J. Lu, G. Allan Morris III, and a host of others.

								    31 May 1999 						       rpc.nfsd(8)
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