From: Thunder from the hill <thunder@ngforever.de>
To: linux-kernel@vger.kernel.org, Martin Eriksson <nitrax@giron.wox.org>
Subject: Re: HPT370 RAID-1 or Software RAID-1, what's "best"?
Date: Fri, 15 Mar 2002 07:52:43 -0700 [thread overview]
Message-ID: <3C920ABB.6E17E324@ngforever.de> (raw)
Hi,
Luigi Genoni wrote:
> HPT370 IDE Raid is not really an hardware raid.
> It is a software Raid, since Linux does not use tha raid implementation
> that comes with the BIOS, but it uses softwareraid.
That doesn't prevent me from saying that real hardware raid might be
better. But is the thing you wish to say that there's no difference, or
what?
Alan Cox wrote:
> The raid rebuild time is identical for pretty much any set up. With the
> softraid its intentionally defaulting to a low fraction of I/O bandwidth
> so it doesnt disrupt normal operation.
I experienced it took at about twice the time for a rebuild. I don't
exactly remember the test results, and they aren't available to me until
Monday. If you're interested...
Maybe things have changed a lot since last year, when I did the tests.
> Also as far is his question goes - both are software raid
See above.
Thunder
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Extract this and see what will happen if you execute my
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next reply other threads:[~2002-03-15 14:53 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-03-15 14:52 Thunder from the hill [this message]
2002-03-15 15:29 ` HPT370 RAID-1 or Software RAID-1, what's "best"? Alan Cox
2002-03-15 16:52 ` Luigi Genoni
2002-03-15 17:43 ` Alan Cox
2002-03-15 18:07 ` Luigi Genoni
2002-03-16 1:12 ` Mike Fedyk
2002-03-18 19:56 ` Bill Davidsen
-- strict thread matches above, loose matches on Subject: below --
2002-03-14 18:33 Thunder from the hill
2002-03-14 18:53 ` Alan Cox
2002-03-15 9:31 ` Luigi Genoni
2002-03-15 12:59 ` Martin Eriksson
2002-03-15 14:00 ` Ulrich Wiederhold
2002-03-13 21:20 Martin Eriksson
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