SIL device names keep changing

Heinz Mauelshagen mauelshagen at
Thu Apr 21 10:32:06 UTC 2005

On Sun, Apr 17, 2005 at 07:59:03PM +0200, Erik Agsjö wrote:
> I'm successfully running a SIL 3112 dmraid mirrored configuration since
> months, but I have just recently started using the mirror from Windows.
> I started out using a home-brewed initrd setup on linuxfromscratch and
> then switched to gentoo using gerte's excellent livecd and init scripts.
> Now, each time I boot linux after having run a Windows (XP) session, the
> device names have changed! I can manage to get everything up and running
> by using the provided shell and figuring out the new boot device name,
> then fixing fstab and grub.conf afterwards.
> I have found out that the sil incarnation_no seems to increase by two
> everytime I run Windows. What is the incarnation_no used for, and why is
> it used to create the device name?


because most of the ATARAID formats don't keep  names for the RAID
sets/devices, I need to make up a name from other members of the
metadata and I chose the timestamp and incarnation # to derive the name from
for the sil metadata format handler, not knowing that the closed source
Windows driver changes that # every time.

Looks like removing the incarnation # form the name generation makes sense...
Any comments on this ?

> /Erik
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Heinz    -- The LVM Guy --


Heinz Mauelshagen                                 Red Hat GmbH
Consulting Development Engineer                   Am Sonnenhang 11
                                                  56242 Marienrachdorf
Mauelshagen at                            +49 2626 141200
                                                       FAX 924446

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