>-----Original Message----- >From: centos-bounces@xxxxxxxxxx [mailto:centos-bounces@xxxxxxxxxx] On Behalf >Of Les Mikesell >Sent: Wednesday, January 13, 2010 5:17 PM >To: centos@xxxxxxxxxx >Subject: Re: 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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