is hardware RAID recovery largely superior to software raid?
i.e. a recovery from a bad disk in a raid1 configuration means an
automatic switch to the good disk and the removal of the bad disk from the
array, until a new disk is re-inserted, and at that time, hardware raid
taking steps to re-mirror the drives accordingly?
-Tony
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Anthony J. Biacco Network Administrator/Engineer
[EMAIL PROTECTED] Intergrafix Internet Services
"Dream as if you'll live forever, live as if you'll die today"
http://cygnus.ncohafmuta.com http://www.intergrafix.net
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On Mon, 25 Oct 1999, Brian D. Haymore wrote:
> Matthew Clark wrote:
> >
> > Is there much info available on setting up Hardware RAID? Most info seems
> > to be on Software (obvious reasons).. However - as you probably noticed, I'm
> > having problems with my Hardware RAID and need to sort it ASAP..
> >
> > I was thinking about moving to kernel 2.2.13 but the parts of the kernel
> > that may have an effect on MegaRAID Hardware performance (i.e. pci.*,
> > megaraid.*, sym3c98xx.* etc) havn't been updated...
> >
> > Regards,
> >
> > Matthew Clark.
> > --
> > NetDespatch Ltd - The Internet Call Centre.
> > http://www.netdespatch.com
>
>
> I initailly purchased an AMI MegaRAID four or so months ago and saw
> horible performance. I tried a DPT at that time as well before
> setteling on a Mylex eXtremeRAID card. The AMI and DPT seem to both be
> hindered by what I can only speculate as to slow of a sub processor,
> their i960s. The Mylex uses a 233Mhz StrongARM processor. I see
> numbers that are more in harmony with software raid with this card where
> with the other two I saw performance that was more like a slow 5400 rpm
> ide drive with little cache. As far as my tests showed, if you need
> performance, software is the way to go. If you need the reliability of
> hardware raid, then the Mylex card was the way to go.
>
>
> I have numbers for all my tests that I could dig up if wanted.
> --
> Brian D. Haymore
> University of Utah
> Center for High Performance Computing
> 155 South 1452 East RM 405
> Salt Lake City, Ut 84112-0190
>
> Email: [EMAIL PROTECTED] - Phone: (801) 585-1755 - Fax: (801) 585-5366
>
