On Fri, Apr 27, 2007 at 04:56:40PM -0400, Ruslan Sivak wrote: > I am now trying to set up raid10 manually by using mdadm, but it gives > me an error, and when looking at dmesg, it says "md: personality for > level 10 is not loaded!". As it happens, I have just assembled four disks into a raid-10 array. Assembly is trivial; however there was a non-obvious step required to make it start the raid-10 array at boot time. My notes are here: http://wiki.xdroop.com/space/Linux/Software+Raid+compound+devices Incidentally, I'm trying to use this as the back end of a nfs file server; does anyone have any advice for improving performance (lots of small files, lots of reads and writes and deletes, some large files) other than "run bonnie++ and iozone, fiddle, and repeat"? (Dell PowerEdge 2800, 2x36 + 4x300, CentOS 4.4 x86_64) -- /\oo/\ / /()\ \ David Mackintosh | dave at xdroop.com | http://www.xdroop.com -------------- next part -------------- A non-text attachment was scrubbed... Name: not available Type: application/pgp-signature Size: 189 bytes Desc: not available URL: <http://lists.centos.org/pipermail/centos/attachments/20070427/a60f72de/attachment-0005.sig>