Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932377AbWE3S1G (ORCPT ); Tue, 30 May 2006 14:27:06 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S932375AbWE3S1F (ORCPT ); Tue, 30 May 2006 14:27:05 -0400 Received: from smtp.osdl.org ([65.172.181.4]:28631 "EHLO smtp.osdl.org") by vger.kernel.org with ESMTP id S932373AbWE3S1E (ORCPT ); Tue, 30 May 2006 14:27:04 -0400 Date: Tue, 30 May 2006 11:26:55 -0700 (PDT) From: Linus Torvalds To: Mark Lord cc: Benjamin Herrenschmidt , Jeff Garzik , Andrew Morton , linux-ide@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [git patch] libata resume fix In-Reply-To: <447C4718.6090802@rtr.ca> Message-ID: References: <20060528203419.GA15087@havoc.gtf.org> <1148938482.5959.27.camel@localhost.localdomain> <447C4718.6090802@rtr.ca> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1533 Lines: 37 On Tue, 30 May 2006, Mark Lord wrote: > > Not in a suspend/resume capable notebook, though. > > I don't know of *any* notebook drives that take longer > than perhaps five seconds to spin-up and accept commands. > Such a slow drive wouldn't really be tolerated by end-users, > which is why they don't exist. Indeed. In fact, I'd be surprised to see it in a desktop too. At least at one point, in order to get a M$ hw qualification (whatever it's called - but every single hw manufacturer wants it, because some vendors won't use your hardware if you don't have it), a laptop needed to boot up in less than 30 seconds or something. And that wasn't the disk spin-up time. That was the time until the Windows desktop was visible. Desktops could do a bit longer, and I think servers didn't have any time limits, but the point is that selling a disk that takes a long time to start working is actually not that easy. The market that has accepted slow bootup times is historically the server market (don't ask me why - you'd think that with five-nines uptime guarantees you'd want fast bootup), and so you'll find large SCSI disks in particular with long spin-up times. In the laptop and desktop space I'd be very surprised to see anythign longer than a few seconds. Linus - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/