On Tue, Apr 30, 2002 at 09:09:46PM +0100, Duncan John Fyfe wrote:
> On 2002.04.30 14:22 Robert Davies wrote:
> >On Monday 29 April 2002 19:44, you wrote:
> >> On Mon, Apr 29, 2002 at 11:34:48AM +0100, Robert Davies wrote:
> >> > On Saturday 27 April 2002 11:20, you wrote:
> >
> >> Simon suggested Hardware Raid but that I guess would also cause
> >problems
> >> if the OS can't drive the card. So I guess that limits to basic IDE
> >with
> >> either a spare redundant drive and daily backups or tape?
> >
> >The IDE RAID cards are really software RAID, making use of a software
> >RAID at
> >the driver level, which is why these features aren't directly supported.
> >
> >Makes more sense to use normal Linux software RAID, than rely on these
> >proprietary features.
>
> The 2.4.x kernel has two options for the HPT370 RAID chip(set) as found on
> some motherboards .
> The first recognizes it (always a good start) and lets you use it as
> another pair of IDE channels. The second allows you to use the software
> RAID features.
>
> I use the first of these to get 4 master IDE channels (so HDD,HDD,DVD,CDRW
> each on its own channel)
> How good/stable the software raid option is I don't know.
I've played with the software RAID withing the kernel for some time and
it is generally pretty stable. However, the point is that if I'm not
using linux then obviously the RAID won't be working, which favours a
true transparent hardware RAID system, which clearly isn't anything that
requires support within the kernel.
Matthew
--Matthew Sackman Nottingham England
BOFH Excuse Board: Smell from unhygenic janitorial staff wrecked the tape heads -------------------------------------------------------------------- http://www.lug.org.uk http://www.linuxportal.co.uk http://www.linuxjob.co.uk http://www.linuxshop.co.uk --------------------------------------------------------------------
This archive was generated by hypermail 2.1.3 : Tue 30 Apr 2002 - 23:09:19 BST