Insight on partitioning a LAMP Server design issue

[dsr-mzpnVDyJpH4k7aNtvndDlA at public.gmane.org (Dan Ritter)]

On Sat, Oct 31, 2009 at 07:35:04AM -0400, Jerry Feldman wrote:
> I have no issues with your partitioning scheme, but a few questions. Why
> have /dev/sda RAID 1 and /dev/sdb RAID 5? I thought that a single RAID
> volume required 2 separate physical volumes volumes.
> Secondly, I would probably want to use LVM to give you greater
> flexibility so you can resize and move things around.

My assumption was that /dev/sda is a RAID 1 volume presented by
his hardware RAID controller, and was 2 disks ganged together,
and that /dev/sdb is a RAID5 volume, similarly presented,
probably 3-5 disks ganged together.

I generally think RAID 5 is a poor compromise. 

-dsr-


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