From: mru@users.sourceforge.net (Måns Rullgård)
To: linux-kernel@vger.kernel.org
Subject: Re: Software RAID5 with 2.6.0-test
Date: Fri, 17 Oct 2003 19:44:31 +0200 [thread overview]
Message-ID: <yw1xu167kbcw.fsf@users.sourceforge.net> (raw)
In-Reply-To: Pine.LNX.3.96.1031017125544.24004C-100000@gatekeeper.tmr.com
Bill Davidsen <davidsen@tmr.com> writes:
>> 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.
>
> While an overloaded system may benefit from offloaded the CPU
> requirements of RAID, unless you go to a very expensive external unit
> the kernel RAID will usually outperform the inexpensive RAID embedded on
> a controller. The kernel simply knows more about the data needs and can
> can do things a controller can't.
What about the RAID controllers in the $400 category? Surely, they
must be doing something better than the $50 fakeraid controllers.
--
Måns Rullgård
mru@users.sf.net
next prev parent reply other threads:[~2003-10-17 17:44 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
2003-10-17 17:07 ` Bill Davidsen
2003-10-17 17:44 ` Måns Rullgård [this message]
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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