[Server-devel] XS server: raid 6 configuration with build 160, 161, 162 not ok

[Martin Langhoff]

On Tue, Apr 8, 2008 at 12:17 PM, Stefan Reitz
<stefan_w_reitz at hotmail.com> wrote:
> I am still clueless what might be causing the 'FATAL: module md not found'
> error.

Maybe the initrd doesn't have md.ko ?

> Fedora 7 dvd and live cd don't show that behaviour (they - or I - screw up
> later in the setup process ;-).

That hints at kernel config / initrd config I suspect.

> I think an automated partitioning scheme resembling something like this:
> 1 hdd - single drive install
> 2 hdds - raid 1
> 3 hdds - raid 5
> 4 hdds - raid 6
> 5 hdds - raid 6 + hot spare (or let the 5th hdd be a raid6 member - give the
> admin a choice)
> ...
> would be something to aim for.
> Raid6 with one bad hdd is no performance problem, with two bad hdds and no
> hot spare things get really slow.

The RH disk partitioner/configurator (unsure which one is in use in
these modern liveCDs) has some pre-defined behaviours. Anyone familiar
with its internals?

cheers,



m
-- 
 martin.langhoff at gmail.com
 martin at laptop.org -- School Server Architect
 - ask interesting questions
 - don't get distracted with shiny stuff - working code first
 - http://wiki.laptop.org/go/User:Martinlanghoff