On Mon, 20 Jun 2011, Dave Burgess wrote:
I'm trying something a little complicated.I've built a 2Gig raid0 array to boot from. I'm using all four disks as raid elements (two live, two as spares). [...]After that, I set the rest of the disks up in a raid5 config.
You could also consider having a separate 2GB boot partition on each disk, without glueing them together into a RAID0. In normal use, you'd keep them all identical, using rsync or dump|load or something, but you would also have the ability to test upgrades by installing on only one of the multiple boot partitions. (I do this with a two-disk system, with a small boot partition on each disk, and a large RAID0 over "the rest" of both disks.)
--apb (Alan Barrett)