[H-GEN] DVD Backup & burning software under Linux
Adrian Sutton
adrian at intencha.com
Fri Jun 11 02:27:57 EDT 2004
> It should be
> trivial to grab an MD5sum of the tar file (or whatever's on the disc)
> before and after the burn to verify the contents of the disc.
While doing an MD5sum to check each and every backup is definitely a
good idea - do NOT depend on that as the only test of your backups.
Even if the files are copied 100% accurately from hard drive to backup
you still must test that you can put them back successfully, including
testing that you can restore *all* the necessary files not just the
ones you thought were necessary.
The only way to be confident in your backups is to perform regular
emergency recovery drills. Assume that your office has just burnt down
and everything was destroyed - now see how much you can set up again.
The other catch is that if only part of your infrastructure is
destroyed you need to be able to preserve things like user ids and a
bunch of other things that client computers and other servers have a
copy of and expect to be the same. This is particularly troublesome on
Windows domains but there are a number of things in the UNIX world that
would suffer similar issues (NFS springs to mind).
Plan for the worst - probability dictates it will happen eventually.
Regards,
Adrian Sutton.
----------------------------------------------
Intencha "tomorrow's technology today"
Ph: 38478913 0422236329
Suite 8/29 Oatland Crescent
Holland Park West 4121
Australia QLD
www.intencha.com
More information about the General
mailing list