On Mon, Sep 14, 2009 at 11:42:42AM -0700, James Ward wrote: > I'm setting up a new BackupPC server as my current one has gotten > full. This system has 2G RAM, quad Intel(R) Xeon(TM) CPU 3.20GHz and > a 3ware 6.5T array. I believe the array is currently RAID5 with no > hot spare. From what I'm reading, RAID5 is a no-no as is ext3? > > What is the best way to set up the RAID array for BackupPC?
The array for BackupPC should be tuned for access time, mostly. Therfore: As much disk heads as possible, disks as fast as possible. If you want to use few big disks, go for RAID-10 since it does not suffer the write-performance-impact of RAID-5. If you aim for more disks (like 10), you might want to use RAID-5 or -6. I've got a RAID-5 with only 3 disks and I'm regretting it a lot (just didn't find the time to buy that 4th disk and migrate to RAID-10 - I'll report if I did the move and what the results were). Also, ext3 doesn't seem to be a good choice. XFS and ZFS are recommended. (But ZFS is Solaris-only and needs lots of memory and CPU power itself.) Oh, BTW, consider upgrading RAM. It's very, very cheap these days and helps a lot for having the OS cache metadata (directories etc.). HTH, Tino. -- "What we nourish flourishes." - "Was wir nähren erblüht." www.lichtkreis-chemnitz.de www.craniosacralzentrum.de ------------------------------------------------------------------------------ Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day trial. Simplify your report design, integration and deployment - and focus on what you do best, core application coding. Discover what's new with Crystal Reports now. http://p.sf.net/sfu/bobj-july _______________________________________________ BackupPC-users mailing list BackupPC-users@lists.sourceforge.net List: https://lists.sourceforge.net/lists/listinfo/backuppc-users Wiki: http://backuppc.wiki.sourceforge.net Project: http://backuppc.sourceforge.net/
