Subject: Re: sharing disks on the same bus with multiple hosts
To: Erik E. Fair <fair@NetBSD.org>
From: Manuel Bouyer <bouyer@antioche.lip6.fr>
List: tech-kern
Date: 04/10/2004 20:55:12
On Fri, Apr 09, 2004 at 07:16:34PM -0700, Erik E. Fair wrote:
> I think a change of HBA SCSI ID would have to be a compile-time
> constant, to avoid the host coming on the bus at the same ID as
> some other host at HBA initialization time.
> 
> If we can guarantee that NetBSD's HBA SCSI drivers won't touch
> their attached bus until some part of the system has had the chance
> to change the host ID, then it would be OK to do it later. However,
> we probe the busses at boot time...

For some driver at last, it will use the ID setup by the host's firmware.
I agree this won't work in all situations.

-- 
Manuel Bouyer <bouyer@antioche.eu.org>
     NetBSD: 26 ans d'experience feront toujours la difference
--