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Re: [K12OSN] OT: Off-site data replication



Lunch time hours are usually good for this sort of thing..and all off-line hours...and utilizing the BackupPC that Les plugs, is a lovely little application that just plain rocks for doing this sort of thing.

--Huck

Les Mikesell wrote:
On Wed, 2005-04-06 at 13:19, Mike Lichtenwalner wrote:


What are some alternatives in replicating data in a relatively-live manner? A SAN is an option, but is something that extensive required? Would doing an rsync every 15 minutes bring the box to its knees?


There is a lot of overhead in the directory-scan part of an rsync.  If
you can confine the frequent runs to smaller subdirectories at a time
it will not have much impact.  Since maildir type mailboxes can have
a huge number of files, you might go so far as to script a loop over
individual home directories to rsync one at a time.

And since I haven't mentioned it for at least a week, I'll point out
that backuppc (http://backuppc.sourceforge.net/) does a good job of
normal backups and can run from a remote location if you have the
bandwidth. I don't think I'd run it every 15 minutes, though.



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