zfs and moving devices

[Gary Palmer]

On Mon, Apr 13, 2009 at 06:54:12AM +0300, Dimitar Vasilev wrote:
> 2009/4/13 Tobias C. Berner <tcberner at gmail.com>:
> > Hi
> >
> > I have a zfs pool
> >
> > ?? ?? ?? ??NAME ?? ?? ?? ??STATE ?? ?? READ WRITE CKSUM
> > ?? ?? ?? ??multimedia ??ONLINE ?? ?? ?? 0 ?? ?? 0 ?? ?? 0
> > ?? ?? ?? ?? ??ad8 ?? ?? ?? ONLINE ?? ?? ?? 0 ?? ?? 0 ?? ?? 0
> > ?? ?? ?? ?? ??ad10 ?? ?? ??ONLINE ?? ?? ?? 0 ?? ?? 0 ?? ?? 0
> > ?? ?? ?? ?? ??ad12 ?? ?? ??ONLINE ?? ?? ?? 0 ?? ?? 0 ?? ?? 0
> > ?? ?? ?? ?? ??ad14 ?? ?? ??ONLINE ?? ?? ?? 0 ?? ?? 0 ?? ?? 0
> >
> > Now, I need more sata-connecters. If I activate
> > an other onboard-controller, the device names
> > move:
> >
> > ?? ad8 ??-> ad14
> > ?? ad10 -> ad16
> > ?? ad12 -> ad18
> > ?? ad14 -> ad20
> >
> >
> > What is the proper way to handle this in zfs?
> >
> >
> > thanks, Tobias
> >
> > _______________________________________________
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> > http://lists.freebsd.org/mailman/listinfo/freebsd-fs
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> >
> 
> There was an option for ata_static_id's in $KERNCONF  - you need to
> enable this to keep the sata from shifting.Don't remember the exact
> magic instance - should be somewhere in LINT/hint/GENERIC.
> Should resemble something like ATA_STATIC_ID.

% grep STATIC /sys/i386/conf/GENERIC
options         ATA_STATIC_ID   # Static device numbering

Regards,

Gary