From: Kent Borg <kentborg@borg.org>
To: "Jeff V. Merkey" <jmerkey@vger.timpanogas.org>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>,
nick@snowman.net, Baldur Norddahl <bbn-linux-kernel@clansoft.dk>,
Mike Dresser <mdresser_l@windsormachine.com>,
linux-kernel@vger.kernel.org
Subject: Re: IDE/raid performance
Date: Wed, 17 Apr 2002 13:47:16 -0400 [thread overview]
Message-ID: <20020417134716.D10041@borg.org> (raw)
In-Reply-To: <Pine.LNX.4.21.0204171108480.3300-100000@ns> <E16xrfQ-0002VF-00@the-village.bc.nu> <20020417102722.B26720@vger.timpanogas.org>
On Wed, Apr 17, 2002 at 10:27:22AM -0700, Jeff V. Merkey wrote:
> From my analysis with 3Ware at 32 drive configurations, you really
> need to power the drives from a separate power supply is you have
> more than 16 devices. They really suck the power during initial
> spinup.
It seems an obvious help would be to have the option of spinning up
the drives one at a time at 2-3 second intervals. I know a fast drive
doesn't get up to speed in 3 seconds, but the nastiest draw is going
to be over by then.
A machine with 32 drives is pretty serious stuff and probably isn't
booting in a few seconds anyway--another 60-some seconds might be a
desirable option.
Does this exist anywhere? Would it have to be a BIOS feature?
-kb
next prev parent reply other threads:[~2002-04-17 17:47 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-04-17 12:58 IDE/raid performance Baldur Norddahl
2002-04-17 13:43 ` Mike Dresser
2002-04-17 14:00 ` Baldur Norddahl
2002-04-17 15:15 ` nick
2002-04-17 15:48 ` Alan Cox
2002-04-17 17:27 ` Jeff V. Merkey
2002-04-17 17:47 ` Kent Borg [this message]
2002-04-17 17:48 ` nick
2002-04-17 23:26 ` Mike Fedyk
2002-04-18 6:47 ` Andre Hedrick
2002-04-18 7:41 ` Helge Hafting
2002-04-18 21:22 ` Mike Fedyk
2002-04-17 17:36 ` Baldur Norddahl
2002-04-17 17:41 ` Mike Dresser
2002-04-17 17:46 ` nick
2002-04-17 22:35 ` dean gaudet
2002-04-17 23:52 ` Alan Cox
2002-04-17 20:36 ` Kurt Garloff
2002-04-21 19:01 ` Pavel Machek
2002-04-18 15:51 ` Bill Davidsen
2002-04-18 18:33 ` Mike Galbraith
2002-04-17 15:09 ` Bill Davidsen
2002-04-17 18:38 ` Andre Hedrick
2002-04-17 22:44 ` Lincoln Dale
2002-04-18 0:38 ` Mike Fedyk
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