optimesing NFS Server for e.g. remote Backup

[Götz Reinicke]

Hi,

I have some RHEL4 servers and want to set up a central backup system 
with a "big" harddisk. I found a very nice shell-script, doing 
incremental backups using tar.

So I thougt, I'll mount the Backupserver-shares by NFS on the 
"client"-servers and run the backupscript by cron so the servers write 
there backupdata to the nfs shares.

My problem:
The tests I made where almost fine, but from time to time I do get errors:

/bin/tar: /export/backup02/shares-Wed.tar: Cannot open: Input/output error
/bin/tar: Error is not recoverable: exiting now

Any ideas what coul be wrong? The Backups are about 10 GB +- up to 100 
GB in the future.

The second Question: Which NFS/mount/export optimisation settings are 
recomendet? (e.g. NFS Version, buffers...)

Thanks a lot for any hints and tips!

Regards

Götz Reinicke
-- 
Götz Reinicke
IT Koordinator - IT OfficeNet

Tel. +49 (0) 7141 - 969 420
Fax  +49 (0) 7141 - 969 55 420
goetz.reinicke at filmakademie.de

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