From mboxrd@z Thu Jan 1 00:00:00 1970 From: Christian Iversen Subject: Re: Is it possible to support a sector size 8192 Date: Fri, 22 Jul 2005 21:21:16 +0200 Message-ID: <200507222121.16685.chrivers@iversen-net.dk> References: Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Return-path: Received: from port741.ds1-noe.adsl.cybercity.dk ([212.242.204.118]:59708 "EHLO boreas.iversen-net.dk") by vger.kernel.org with ESMTP id S262143AbVGVTVX (ORCPT ); Fri, 22 Jul 2005 15:21:23 -0400 Received: from localhost (localhost [127.0.0.1]) by boreas.iversen-net.dk (Postfix) with ESMTP id 24ED42B9504 for ; Fri, 22 Jul 2005 21:21:22 +0200 (CEST) Received: from boreas.iversen-net.dk ([127.0.0.1]) by localhost (boreas.iversen-net.dk [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 14871-01 for ; Fri, 22 Jul 2005 21:21:17 +0200 (CEST) Received: from zephyr.iversen-net.dk (zephyr.iversen-net.dk [10.0.0.2]) by boreas.iversen-net.dk (Postfix) with ESMTP for ; Fri, 22 Jul 2005 21:21:17 +0200 (CEST) In-Reply-To: Content-Disposition: inline Sender: linux-scsi-owner@vger.kernel.org List-Id: linux-scsi@vger.kernel.org To: linux-scsi On Friday 22 July 2005 20:18, Steve McIntyre wrote: > Johann wrote: > >Hi everybody, > > > >i'm trying to access UDO/WORM mediums (which have a sector size of > >8192) via a Plasmon UDO drive, but all I get is "unsupported sector > >size 8192" when I try to access it via /dev/sdX. drivers/scsi/sd.c > >suggests that the maximum sector size currently supported by Linux is > >4096. > > > >How difficult will it get to support 8192? Maybe we can pay somebody > >for doing it? (Kernel 2.4.21, RHEL 3.1). > > We (at Plasmon) investigated adding support in the kernel, but gave up > quickly as it looked like it would need a huge amount of work in > multiple areas. Instead, we've started shipping a userland filesystem > driver for UDO based on FUSE. If you'd be interested in that, let me > know... Wouldn't it be possible to translate the sector size 2:1? For me, it doesn't seem that hard to do. But then again, I usually program other things than the kernel :) -- Regards, Christian Iversen