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Re: how cant I rebuild the superblock

To: linux-xfs@xxxxxxxxxxx
Subject: Re: how cant I rebuild the superblock
From: Sven Gehr <sven@xxxxxxxxxxxxx>
Date: Wed, 30 Mar 2005 21:24:38 +0200 (CEST)
In-reply-to: <20050330190520.GB12758@xxxxxxxxxxxxxxxxxxxxx>
Organization: dreampixel
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Am Mi 30.03.2005 21:05 schrieb Chris Wedgwood <cw@xxxxxxxx>:
> On Wed, Mar 30, 2005 at 09:01:08PM +0200, Sven Gehr wrote:

 

> the kernel raid subsystem can (and usually does by default) mark each
> disk in a raid group do you don't have to worry about the order.  i
> think they call it persusten superblocks or something.

> if you have those the order of the disks is decided by the kernel upon
> reading these not from /etc/mdtab or whatever the file used is

> it should also be possible to poke about at the end of the disk(s) and
> read this data i assume

Before I shutdown the system I was delete the RAID-superblock with
'mdadm --zero-superblock /dev/sdX2' for alle devices. The system go down
an I change the SCSI-ID. After reboot suse generate the RAID new with
sda2=raid-device 0 sdb2=raid-device 1 sdc2=raid-device 2

I test all combinations.


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