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From: linux@horizon.com
To: linux-raid@vger.kernel.org
Subject: Re: Linux: Why software RAID?
Date: 25 Aug 2006 23:50:34 -0400	[thread overview]
Message-ID: <20060826035034.13307.qmail@science.horizon.com> (raw)

> Hardware RAID can be (!= is) more tolerant of serious drive failures
> where a single drive locks up the bus. A high-end hardware RAID card 
> may be designed with independent controllers so a single drive failure
> cannot take other spindles down with it. The same can be accomplished 
> with sw RAID of course if the builder is careful to use multiple PCI 
> cards, etc. Sw RAID over your motherboard's onboard controllers leaves
> you vulnerable.

Which is exactly why I *like* SW RAID - I can, and do, have the mirrors
span controllers so a whole controller can fail without taking down
the system.

With HW RAID cards, if your controller dies, you're SOL.

             reply	other threads:[~2006-08-26  3:50 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2006-08-26  3:50 linux [this message]
2006-08-26 12:18 ` Linux: Why software RAID? Raz Ben-Jehuda(caro)
  -- strict thread matches above, loose matches on Subject: below --
2006-08-24  3:34 Jeff Garzik
2006-08-24  4:22 ` Richard Scobie
2006-08-24  8:19   ` Jeff Garzik
2006-08-24 20:08     ` Richard Scobie
2006-08-24  5:20 ` Chris Friesen
2006-08-24  5:25   ` H. Peter Anvin
2006-08-26 20:55     ` Dan Williams
2006-08-24  5:43   ` Mattias Wadenstein
2006-08-24 13:07 ` Adam Kropelin
2006-08-24 13:20   ` Alan Cox
2006-08-24 13:36     ` Adam Kropelin
2006-08-24 13:42       ` Gordon Henderson
2006-09-04 17:29         ` Bill Davidsen
2006-08-24 14:55       ` Mark Lord
     [not found]     ` <44EDB843.2020608@perkel.com>
2006-08-24 15:21       ` Alan Cox
2006-09-04 17:31         ` Bill Davidsen
2006-09-04 17:31           ` Joel Jaeggli

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