[CentOS] RAID5 or RAID50 for database?

>And stick with md-raid 10 (also known as software raid) because it is
>much more intelligently designed than any
>closed-source-embedded-raid-controller.

Pretty strong opinion that would be disputed by many don't you think?
I would venture to say that any large system involved in SLA's with 5 9's
etc would have very good equipment all using hardware based controllers.
Not to mention you just invalidated almost every SAN in production which
would be many :)

jlc