Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Sun, 10 Mar 2002 11:20:16 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Sun, 10 Mar 2002 11:20:06 -0500 Received: from 99dyn73.com21.casema.net ([62.234.30.73]:53418 "EHLO abraracourcix.bitwizard.nl") by vger.kernel.org with ESMTP id ; Sun, 10 Mar 2002 11:19:51 -0500 Message-Id: <200203101619.RAA16806@cave.bitwizard.nl> Subject: Re: RAID magics gone... In-Reply-To: <200203100914.KAA14394@cave.bitwizard.nl> from Rogier Wolff at "Mar 10, 2002 10:14:30 am" To: Rogier Wolff Date: Sun, 10 Mar 2002 17:19:49 +0100 (MET) CC: linux-kernel@vger.kernel.org From: R.E.Wolff@BitWizard.nl (Rogier Wolff) X-notice1: This Email contains my Email address. This grants you the right X-notice2: to communicate with me using this address, related to the subject X-notice3: in this message. Unsollicitated mass-mailings are explictly X-notice4: forbidden here, and by Dutch law. X-Mailer: ELM [version 2.4ME+ PL60 (25)] MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Rogier Wolff wrote: > > Hi, > > I have a machine with 4 160G disks in a raid-0 configuration. Now > after upgrading the hardware, all of a sudden raidstart can't find the > raid-superblocks anymore. Invalid magic. > > I'm suspecting that it might be that the superblock was overwritten > with data or something like that. Does anybody know of a bug like > this? > > We're running kernel-2.4.16 with andre's IDE patches for the large > disks. > > I'll see if I can find the "magic" anywhere on the disk.... Couldn't find them . Moved the disks to the old machine, got my RAID back. But I still can't find the magic numbers for the rais-sb anywhere. Could it be that 48bit addressing doesn't work for PIO mode? Either KERNEL bug, drive bug or by spec? I found that the drives were horribly slow when I tried searching them. So I turned DMA on only after having failed to mount the raid, and started to "search" through the whole disk. Can someone seek to the 8k before end of a raid-partition, and dump the remaining part of the disk, so that I can be sure to know what it looks like? That should include the raid-sb, right? Roger. -- ** R.E.Wolff@BitWizard.nl ** http://www.BitWizard.nl/ ** +31-15-2137555 ** *-- BitWizard writes Linux device drivers for any device you may have! --* * There are old pilots, and there are bold pilots. * There are also old, bald pilots. - 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/