tar/ssh/dd large file

From: Ben Kim (bkim@coe.tamu.edu)
Date: Tue Sep 06 2005 - 16:47:38 EDT


I have a network backup script running over ssh like this:

/usr/local/bin/tar cvfz - mydir | /usr/local/bin/ssh user@remote_server dd
of=/backup/backup.tgz

Somehow, the mydir became large (used to be 6gb now 36gb). After that, I
found that the backup stopped at around 8gb.

I wonder where this limit comes from. I'm using gnu tar and I'm sure it
handles files over 2 gb. I'm not sure about dd. I know ssh can also be a
cause since there's login grace time of 2 hours and I guess 36gb could
have taken more than 2 hours.

I have to determine whether I can continue to use this script or not. I'd
appreciate any advice.

Regards,

Ben Kim
http://benix.tamu.edu
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