[CentOS] Backup server

Sorin Srbu sorin.srbu at orgfarm.uu.se
Thu Jan 14 08:49:50 UTC 2010


>-----Original Message-----
>From: centos-bounces at centos.org [mailto:centos-bounces at centos.org] On Behalf
>Of Les Mikesell
>Sent: Wednesday, January 13, 2010 5:17 PM
>To: centos at centos.org
>Subject: Re: [CentOS] Backup server
>
>> I've never had any problems with software raid5 in linux before, but you 
>> never
>> know...
>
>There's a big write performance hit from raid5 (software or not).  It
>may not be enough to be a showstopper but I wouldn't recommend it.  Can
>you reconfigure to a 0+1 or some other type that has better performance
>without losing too much space?   The archive does have to be on a single
>filesystem, though, and if you use the epel RPM it makes things easier
>if you mount the volume at /var/lib/BackupPC before the install.
>See 'how to change archive directory' from:
>http://sourceforge.net/apps/mediawiki/backuppc/index.php?title=Tips_and_Tricks
>to do it after the install.

I know, but in linux it's still a lot better than Windows, which I today 
regret I ever introduced it in... Don't get me wrong, reliability is fine, but 
the recheck on every restart is kinda' bothersome and takes like forever

Today I have five 500GB-disks raided on linux machine. Remove one for parity 
and I have 2TB of real space available. Doing a 0+1, ie 1TB, would indeed be 
better as performance goes, but 1TB of space, well, it just isn't enough 
unfortunately.

As it is now, the 2TB shebang is mounted as /backup. Does that count as a 
single filesystem?
-- 
/Sorin

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