Followup: Lack of support for soft RAID

[Tim Schmidt]

On 9/5/06, Scott White <scott.w.white at gmail.com> wrote:
>
> I tried that from the alternate CD and no options LVM or Software RAID and
> neither of them saw it.  I'm not saying DMRaid has to be the solutions, I
> just think Ubuntu should at least work with most onboard RAID chipsets out
> of the box.
>
> Thanks,
> Scott

See: http://linux-ata.org/faq-sata-raid.html and
http://linux.yyz.us/why-software-raid.html

Software raid (using LVM or md) is the best option for most people
most of the time.  People who need hardware raid are the most likely
to know how to set it up themselves, fake raid (like the ICH5
provides) is the worst of both worlds...  your CPU is still left doing
all the work, while the data is stored on-disk in an incompatible
format (as clearly evidenced by your tests).  Stick to md and you'll
get the same performance, and much wider support by distributions.

There _is_ exactly one argument in favor of having dmraid on the live
CD, which is to be able to copy off data from a previous install (such
as a Windows XP install using the fake-raid features).  However, given
the benefits of using md over fake-raid, I don't think it's worth
including in the actual install.

--tim