From mboxrd@z Thu Jan 1 00:00:00 1970 From: Paul Ionescu Subject: Re: cold plug support Date: Sat, 14 Jan 2006 12:13:55 +0200 Message-ID: References: <43AAA75A.8080303@conterra.de> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: QUOTED-PRINTABLE Return-path: Received: from main.gmane.org ([80.91.229.2]:29407 "EHLO ciao.gmane.org") by vger.kernel.org with ESMTP id S1751676AbWANKQF (ORCPT ); Sat, 14 Jan 2006 05:16:05 -0500 Received: from list by ciao.gmane.org with local (Exim 4.43) id 1ExiRu-00023t-6r for linux-ide@vger.kernel.org; Sat, 14 Jan 2006 11:15:54 +0100 Received: from ibmrom-dt.b.astral.ro ([195.7.6.182]) by main.gmane.org with esmtp (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Sat, 14 Jan 2006 11:15:54 +0100 Received: from i_p_a_u_l by ibmrom-dt.b.astral.ro with local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Sat, 14 Jan 2006 11:15:54 +0100 Sender: linux-ide-owner@vger.kernel.org List-Id: linux-ide@vger.kernel.org To: linux-ide@vger.kernel.org On Thu, 22 Dec 2005 14:17:14 +0100, Dieter St=FCken wrote: > I followed the recent discussion about ACPI and hotplug and understan= d > some of the complications with ACPI if the event is triggered by the > device itself, if it is disrupted unexpectedly. >=20 > What I need, however, would be the possibility, just to replace a dis= ks > without reboot. I will umount it first and then suspend/shutdown it > somehow, so it should disappear from /sys/block. Thus I can safely un= plug > it and attach a new disk. If my hardware is unable to recognize the n= ew > disk instantaneously this is not a problem. I may easily activate som= e > scanning process to find and activate the new disk. To accomplish thi= s, > IMHO there is no need to solve all the hotplug problems first. >=20 > This would be a BIG enhancement for me (and may be others) to keep my= disk > servers up and running. May be some of these steps are already > implemented, but then I'm missing some HOWTO. Else I like to hear if = his > kind of cold-plug is aimed some day, or if nobody really needs this > besides be :-) >=20 > Dieter. Hello Dieter, You are not alone, Me and some of my friends also will benefit from some sort of cold-plug= if possible. If you found something, please let us know. Thanks, Paul