On Wed, May 17, 2006 at 03:19:42PM -0700, k a wrote: > i want to boot redhat linux through the ide drive and put > the 6 sata disks on the same raid 5 array. is it possible > or do i have to build two raid 5 arrays. and lets say the > hardisk ide that i am using to boot up dies, would it be > possible to recover the array or should i do software raid > 1 with the ide drive so use two ide drive incase one dies. If you use the hardware RAID controller, you can put all the drives in one raid-5, and still be able to boot if one disk fails. The 'boot disk' would be the array, so no one disk in the array would be responsible for booting.
If you go with software raid-5, things are a little harder due to the need for linux to load the raid driver before it has access to the disks, which as you can imagine is a bit tricky. You'd probably make a partition on two disks that is mirrored, and add the rest to a RAID-5 array. > is it possible to do software raid 5 when the controller > does not support it. Absolutely, but its slower. -Jason Martin -- What goes around usually gets dizzy and falls over. This message is PGP/MIME signed.
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