[plug] Hardware RAID & RH6.x

Earnshaw, Mike earnshawm at wa.switch.aust.com
Mon Apr 17 13:28:48 WST 2000


Never having used software raid on a *nix before, is it really as good as
hardware? I know on the other platform we use here, s/w raid runs like a
dogs breakfast. I would really like to put *big* SCSI drives in (at least
18Gb, I suppose that's not big today tho') to cope with expansion. I am
trying to move away from IDE.

Would you still recommend s/w implementation even with SCSI?


> -----Original Message-----
> From: Matt Kemner [mailto:zombie at wasp.net.au]
> Sent: Monday, April 17, 2000 1:22 PM
> To: PLUG (E-mail)
> Subject: Re: [plug] Hardware RAID & RH6.x
> On Mon, 17 Apr 2000, Earnshaw, Mike wrote:
> > for recommendations or advice on which cards to use. 
> Currently checked out
> > DPT (RH 5.2 support) and Adaptec (no mention of Linux support).
> Don't buy a card, use the kernel support and do software raid.
> You should get comparable performance, so long as you have 
> only 1 drive
> per IDE channel.
> (ie have them as Primary Master (hda) and Secondary Master 
> (hdc) and don't
>  have any slaves)
> > This box will become our major fileshare and I would like 
> to Raid5 with
> > 18.2Gb drives. Any comments welcome.
> See the HOWTO at:
> http://www.linux.org.au/LDP/HOWTO/Software-RAID-HOWTO.html
>  - Matt

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