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From: mru@users.sourceforge.net (Måns Rullgård)
To: Andre Tomt <andre@tomt.net>
Cc: linux-kernel@vger.kernel.org
Subject: Re: Software RAID5 with 2.6.0-test
Date: Thu, 09 Oct 2003 11:28:49 +0200	[thread overview]
Message-ID: <yw1xoewqep4e.fsf@users.sourceforge.net> (raw)
In-Reply-To: <1065690658.10389.19.camel@slurv> (Andre Tomt's message of "Thu, 09 Oct 2003 11:10:59 +0200")

Andre Tomt <andre@tomt.net> writes:

>> > Was this a 4 port or 2 port HPT controller? Keep in mind, two disks on
>> > the same IDE channel severely degrades performance, *especially* with
>> > RAID.
>> 
>> It's a four port SATA controller.  I'd never even think about placing
>> two disks on the same cable.
>
> You can't either, considering it is SATA :-)
>
> However, I wouln't count on superior performance from software based
> RAID 5 (ata/fakeraid or otherwise), that is whats real raid controllers
> are for.

I've seen reports of people obtaining nearly 100 MB/s from software
RAID5.

> Out of couriosity, how well is it performing in lets say.. a RAID10 or
> RAID1 setup?

I didn't try.  I might, of course.

-- 
Måns Rullgård
mru@users.sf.net

  reply	other threads:[~2003-10-09  9:29 UTC|newest]

Thread overview: 22+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2003-10-08 22:43 Software RAID5 with 2.6.0-test Måns Rullgård
2003-10-08 23:24 ` Torrey Hoffman
2003-10-08 23:44   ` Måns Rullgård
2003-10-09  0:51     ` Andre Tomt
2003-10-09  8:55       ` Måns Rullgård
2003-10-09  9:10         ` Andre Tomt
2003-10-09  9:28           ` Måns Rullgård [this message]
2003-10-17 17:07           ` Bill Davidsen
2003-10-17 17:44             ` Måns Rullgård
2003-10-17 18:39               ` Samuel Flory
2003-10-17 19:18                 ` Måns Rullgård
2003-10-17 19:37                   ` Jakob Oestergaard
2003-10-17 19:52                     ` Måns Rullgård
2003-10-18 22:55                   ` jw schultz
2003-10-17 19:24               ` Jakob Oestergaard
2003-10-19  9:25                 ` Pavel Machek
2003-10-21 21:44                 ` bill davidsen
2003-10-21 21:36               ` bill davidsen
2003-10-22 15:17                 ` Chuck Campbell
2003-10-18 11:50 Dr. David Alan Gilbert
2003-10-21 21:51 ` bill davidsen
2003-10-22  2:37   ` jw schultz

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