[PlanetCCRMA] RAID questions...kernel patch?

Steve Harris S.W.Harris@ecs.soton.ac.uk
Fri May 20 02:26:01 2005

On Tue, May 17, 2005 at 03:50:01 -0700, Fernando Pablo Lopez-Lezcano wrote:
> On Tue, 2005-05-17 at 13:26, Aaron Trumm wrote:
> > Hey there - have a question...
> > 
> > With the current planet kernel/FC3, is SATA hardware raid supported?
> > 
> > my task is to rebuild a media server to make it perform better and be solid,
> > and I'm thinking of trying an FC3/planet kernel setup.  But the key part i'm
> > struggling with understanding is whether I can set up the RAID mirror
> > properly...
> > 
> > The mobo is an ASUS p4p800se and it has two drives, which of course, we want
> > to act like one, be mirrored, for safety, all that good stuff...  our
> > current version of the server uses gentoo and can't take advantage of the
> > ASUS hardware raid, but we're thinking we might be better off using the
> > hardware raid than a software raid...
> > 
> > I've read a couple places that I may need to patch the kernel - which is why
> > I ask here, because the other goal is to improve its performance, and I
> > don't think the current server even has any realtime patches, it's just a
> > straight 2.4 kernel.  so I was thinking about just doing a mostly planet
> > style install...
> > 
> > anybody have any clues?  *turns eyes at fernando...*  *grin*
> *fernando tries (unsuccessfully) to walk away from the virtual room*
> The kernel does not have anything extra (in terms of outside patches)
> and I don't know which hardware raid devices it may support. Most of the
> mobo level raid devices are just software raid, they need a special
> driver on windows (which, surprise, does the raid thing :-) But again, I
> don't know which ones may be exceptions to that rule. 

The expensive ones :) there not likly to be in onboard chipsets. 3ware
cards are genuine hardware RAID, and most of them are supported.

Linux's software RAID is very good, and I'd use that.

- Steve