From mboxrd@z Thu Jan 1 00:00:00 1970 From: James Bottomley Subject: Re: lots and lots of disks again Date: 17 Feb 2004 12:57:37 -0500 Sender: linux-scsi-owner@vger.kernel.org Message-ID: <1077040659.2186.31.camel@mulgrave> References: <20040211225348.GM21151@parcelfarce.linux.theplanet.co.uk> <20040212150035.GN1780@tpkurt.garloff.de> <20040212155721.GS21151@parcelfarce.linux.theplanet.co.uk> <20040212161800.GU1780@tpkurt.garloff.de> <1076604183.2576.89.camel@mulgrave> <20040216124047.GG4011@tpkurt.garloff.de> <20040216225704.GA3420@pclin040.win.tue.nl> <1076979373.1758.688.camel@mulgrave> <20040217144959.GA4282@pclin040.win.tue.nl> <1077031099.1757.24.camel@mulgrave> <20040217155024.GB4282@pclin040.win.tue.nl> Mime-Version: 1.0 Content-Type: text/plain Content-Transfer-Encoding: 7bit Return-path: Received: from stat1.steeleye.com ([65.114.3.130]:35220 "EHLO hancock.sc.steeleye.com") by vger.kernel.org with ESMTP id S266416AbUBQR6A (ORCPT ); Tue, 17 Feb 2004 12:58:00 -0500 In-Reply-To: <20040217155024.GB4282@pclin040.win.tue.nl> List-Id: linux-scsi@vger.kernel.org To: Andries Brouwer Cc: Kurt Garloff , viro@parcelfarce.linux.theplanet.co.uk, Andrew Morton , hch@infradead.org, SCSI Mailing List , pbadari@us.ibm.com, willy@debian.org On Tue, 2004-02-17 at 10:50, Andries Brouwer wrote: > On Tue, Feb 17, 2004 at 10:18:07AM -0500, James Bottomley wrote: > > The correct way to solve this is an all or nothing migration gated by a > > boot time flag. > > Yes, I was also thinking of boot time flags, but not all-or-nothing. > Almost nobody actually needs these five thousand disks, and programs > like LILO know about major 8, so I can even imagine that someone with > lots of disks would like the boot disk to remain sda (8,0) even when > all the others become (1049,*)-(1073,*). > > Then what is the boot parameter? I don't know. Anything. > Say, scsi-legacy=sda,sdb,sde. But this is complexity for no gain. The proposal is very simple: You want large numbers or discs or large numbers of partitions, you get fixed tools and use a flat space on the new major number. You want legacy, you don't do anything for 2.6; for 2.7 you'll need to specify a boot flag. James