Restore it on a windows machine and see if it is good.  Backups and restores 
work different on *nix than they do for windows.  Try ftp'ing the file to the 
linux machine, make sure you do it in binary mode then try to untar it.  I 
would bet the file is correct if you restore to a windows machine, and will 
untar if the file is ftp'd to a linux machine.  If you need the file backed up 
on tape for archival or dr purposes ftp it to the linux machine and back it up 
and then the restore to linux will be good.


-----Original Message-----
From: veritas-bu-bounces AT mailman.eng.auburn DOT edu 
[mailto:veritas-bu-bounces AT mailman.eng.auburn DOT edu] On Behalf Of Jorge 
Fábregas
Sent: Friday, September 11, 2009 10:11 AM
To: VERITAS-BU AT mailman.eng.auburn DOT edu
Subject: [Veritas-bu] Data Corruption (How to Troubleshoot)

Hello guys,

I have this 20GB TAR file (created with 7zip) on a Windows machine. I perform 
a backup of this TAR file and everything goes ok.  When I restored the file 
on a Linux host I first noticed the file size was off by a few bytes and I'm 
unable to extract it. I then verified with md5sum and I get a different hash 
from that of the original file (on Windows I use the md5sum.exe from 
etree.org).

I really don't know if it's something going on while doing the backup or while 
doing the restore :(       How would you troubleshoot this since there's no 
backup verification process on NBU?

Thanks,
Jorge
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_______________________________________________
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