[GLLUG] Re: Booting / as a RAID device in Ubuntu

[Dennis Kelly]

Well, my option would have been the typical crappy onboard raid... I
don't hold the user-workstation-level on-board raid chipsets in the
highest of regard... also, when it comes to solving problems like mine
below, I have tons of options because I have source code, communities,
and other resources.  I'm also using RAID 1 for everything (2 x 250 GB
disks for OS, 2 x 750 GB for data) so my setup is very clean and
simple this way.

Unless it's some heavy duty, expensive, server-class RAID controller,
I don't see much advantage to hardware raid, including performance and
RAID5 even.  This is just my opinion though.  Also, over the years,
I've seen even entry level server RAID controllers have firmware
issues that result in serious data integrity and stability problems.
So I usually don't even look at hardware RAID unless I'm talking
Terabytes and enterprise numbers of users, i/o, and/or uptime.

dpk


On Dec 7, 2007 11:51 AM, Michael George <george at idealso.com> wrote:
> On Fri, December 7, 2007 1:30 pm, Dennis Kelly wrote:
> > Ended up fixing it myself with a lot more debugging.  Found I had to
> > update mdadm.conf manually.  The update-initramfs process scans
> > mdadm.conf for arrays and automagically adds the devices to the init
> > filesystem.  All my volumes are raid1 now, booyah!
>
> Why did you choose software RAID over hardware RAID?  Cost?  Configurability?
>
> -Michael George
>