I've configured software RAID1 for disk redundancy on a couple of server
using the
e-smith distro of redhat - you simply select it as an option at install
time (post 4.1) But you
may not wish to use e-smith, which is highly customised for
fileserving/internet gateway use.
I haven't tried hardware RAID but unless you are doing massive file
copying you probably won't notice things slowing down much under the
software implementation. E-smith say
their is a 5% cpu overhead due to software RAID1 at most.
I have heard of a number of RAID cards working out of the box - basically
check the RedHat HAL(hardware.redhat.com) to confirm compatibility (or the
chosen hal register of your distribution).
-=-=-==-=-=--=-=-=-=-=-=-=-=-=-=-=-=
Graeme Robinson - Graenet consulting
www.graenet.com - internet solutions
-=-=-=-=-=-=-=-=-=-=-==---=-=--=-=-=
On Thu, 5 Jul 2001 [EMAIL PROTECTED] wrote:
> I can recommend SW raid in a production env. We have two
> samba servers that have been running software raid for over a year
> with no problems at all.
>
> One is running raid 0 for speed/size reasons and the other is
> running 5 for reliability. Unfortunately this period includes no actual
> disk trouble (other than simulated) so in a real failure your mileage
> may vary.
>
> As for speed I suspect SW raid is faster than HW raid for a given
> price point. I'd expect x86 MIPS to be much much cheaper than
> dedicated controller MIPS. Instead of buying a HW RAID soln go
> with SW and throw the saved money into /CPU/memory/disk
> improvements and be happy.
>
> Cheers
> Rod
>
>
>
>
>
>
> From: John Clarke <[EMAIL PROTECTED]>
> To: [EMAIL PROTECTED]
> Subject: Re: [SLUG] RAID advice wanted
> Date sent: Thu, 5 Jul 2001 11:17:54 +1000
>
> > Thanks John, Ian and Marty for your replies.
> >
> > I'm after the redundancy so that the server stays up if a drive fails.
> > I don't need superfast performance. The lower performance of software
> > RAID is acceptable.
> >
> > What I do need though is for the system to keep running if a drive
> > fails, and for it to be easy to replace the dead drive. If the server
> > has to be taken down for a couple of minutes to install a replacement
> > drive, that's OK.
> >
> > However, if I did go for hardware RAID, does anyone have
> > recommendations for a controller that's supported by Linux?
> >
> >
> > Cheers,
> >
> > John
> > --
> > whois [EMAIL PROTECTED]
> >
> > --
> > SLUG - Sydney Linux User Group Mailing List - http://slug.org.au/ More
> > Info: http://lists.slug.org.au/listinfo/slug
> >
>
>
> ----------------------------------------------
> Rod Tunks
> Hardware R&D Manager
> TPG Network, Canberra
> [EMAIL PROTECTED] (02)62851711
>
> "bad or missing Coffee.sys - operator halted"
> ICQ: 4514607
>
> --
> SLUG - Sydney Linux User Group Mailing List - http://slug.org.au/
> More Info: http://lists.slug.org.au/listinfo/slug
>
>
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