From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932404AbYEBRPy (ORCPT ); Fri, 2 May 2008 13:15:54 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752485AbYEBRPq (ORCPT ); Fri, 2 May 2008 13:15:46 -0400 Received: from threatwall.zlynx.org ([199.45.143.218]:34083 "EHLO zlynx.org" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1752521AbYEBRPp (ORCPT ); Fri, 2 May 2008 13:15:45 -0400 Subject: Re: [PATCH #repost] SCSI: megaraid, fix suspend/resume sections From: Zan Lynx To: Andrew Morton Cc: James Bottomley , jirislaby@gmail.com, megaraidlinux@lsi.com, linux-scsi@vger.kernel.org, linux-kernel@vger.kernel.org In-Reply-To: <20080501153048.2a8d356f.akpm@linux-foundation.org> References: <1209657362-20300-1-git-send-email-jirislaby@gmail.com> <20080501142305.77433e50.akpm@linux-foundation.org> <481A3781.8080100@gmail.com> <1209679559.14864.33.camel@localhost.localdomain> <20080501153048.2a8d356f.akpm@linux-foundation.org> Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="=-/8A+6Yta2xd3JkPmWYma" Date: Fri, 02 May 2008 11:15:33 -0600 Message-Id: <1209748533.239501.10.camel@localhost> Mime-Version: 1.0 X-Mailer: Evolution 2.22.1 X-Envelope-From: zlynx@acm.org X-Spam-Id: 20080502/1Jryr8-0006Xs-8w-linux-kernel@vger.kernel.org:zlynx@acm.org:199.45.143.218 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org --=-/8A+6Yta2xd3JkPmWYma Content-Type: text/plain Content-Transfer-Encoding: quoted-printable On Thu, 2008-05-01 at 15:30 -0700, Andrew Morton wrote: [cut]=20 > > CONFIG_HOTPLUG is only settable to 'n' if you're CONFIG_EMBEDDED which > > has a zero set intersection with the users of megaraid, so in practical > > terms, there's no actual box it could kill. >=20 > who suspends and resumes servers? I read an article not long ago about a guy running an AMD renderfarm. He was working on power management techniques, including suspending systems that weren't in use. It made a huge difference in power costs, apparently. I believe suspend is also used in some virtual server farms where physical systems are resumed and virtuals are migrated to satisfy higher CPU demands. I could also see using it combined with a load balancer or proxy to bring up backup web or database servers. Compared to using networked/USB power bars or management controllers to bring systems up and down, suspend/resume provides a faster response. --=20 Zan Lynx --=-/8A+6Yta2xd3JkPmWYma Content-Type: application/pgp-signature; name=signature.asc Content-Description: This is a digitally signed message part -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.9 (GNU/Linux) iEYEABECAAYFAkgbTDUACgkQolqWs/Y4NLwaEACfWnrTZ3AybWOj/gfBkSje0+uJ ah4AoKKomNwEs/DB7TOcDFenIccDTcd2 =Q2ui -----END PGP SIGNATURE----- --=-/8A+6Yta2xd3JkPmWYma--