From: "Jakob Østergaard" <jakob@unthought.net>
To: Jeff Nguyen <jeff@aslab.com>
Cc: linux-kernel@vger.kernel.org
Subject: Re: IDE hotplug support?
Date: Fri, 3 May 2002 01:09:18 +0200 [thread overview]
Message-ID: <20020503010918.A31556@unthought.net> (raw)
In-Reply-To: <20020502215833.V31556@unthought.net> <E173N9y-0004k1-00@the-village.bc.nu> <20020502231359.W31556@unthought.net> <09fa01c1f227$c8357f00$6502a8c0@jeff>
On Thu, May 02, 2002 at 03:22:00PM -0700, Jeff Nguyen wrote:
> You can get a sustained read speed of 80MB/s on the Adaptec 2000S
> Zero Channel RAID with 7 drives (RAID-5). But the sustained write
> speed is only around 32MB/s.
>
> On the other hand, the 3Ware Escalade 7850 can sustain a read speed
> of 130MB/s with 8 drives (RAID-5). The write speed is 30MB/s.
So for both cards, the solution with simple IDE controllers, all on
one PCI bus, would be faster not only on RAID-5, but also RAID-1+0.
Or am I missing something ?
(I know, the IDE cabling is going to be *hell* for 15 drives if you
want to stay within spec, and I would go SCSI or FC before that myself)
--
................................................................
: jakob@unthought.net : And I see the elder races, :
:.........................: putrid forms of man :
: Jakob Østergaard : See him rise and claim the earth, :
: OZ9ABN : his downfall is at hand. :
:.........................:............{Konkhra}...............:
next prev parent reply other threads:[~2002-05-02 23:09 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-04-30 15:48 IDE hotplug support? Roy Sigurd Karlsbakk
2002-04-26 15:29 ` Pavel Machek
2002-05-02 18:19 ` Martin Dalecki
2002-05-02 19:58 ` Jakob Østergaard
2002-05-02 20:09 ` Samuel Flory
2002-05-03 0:31 ` Roy Sigurd Karlsbakk
2002-05-03 3:14 ` jw schultz
2002-05-02 20:26 ` Alan Cox
2002-05-02 21:13 ` Jakob Østergaard
2002-05-02 20:18 ` Martin Dalecki
2002-05-02 22:22 ` Jeff Nguyen
2002-05-02 23:09 ` Jakob Østergaard [this message]
2002-05-03 0:16 ` Alan Cox
2002-05-03 0:35 ` Roy Sigurd Karlsbakk
2002-05-03 17:10 ` Roy Sigurd Karlsbakk
2002-05-03 0:25 ` Roy Sigurd Karlsbakk
2002-05-03 0:51 ` Alan Cox
2002-05-03 0:37 ` Roy Sigurd Karlsbakk
2002-04-30 16:22 ` Zwane Mwaikambo
2002-04-30 18:46 ` Ragnar Hojland Espinosa
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