-----Original Message----- From: centos-bounces@centos.org [mailto:centos-bounces@centos.org] On Behalf Of Les Mikesell Sent: Wednesday, January 13, 2010 5:17 PM To: centos@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_Tric... 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?