[K12OSN] OT: Off-site data replication

Mike Lichtenwalner mll at mtwp.net
Thu Apr 7 20:17:15 UTC 2005


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.

Thanks to those of you who suggested rsync - I'll give it a try. I think 
I will NFS mount the volumes I want to rsync from another box, and then 
run the rsync between the NFS mounted volume and a local volume. I'm 
hoping that will cut the load on the original server.

Thanks, again!
Mike




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