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Re: [Qemu-devel] [PATCH 0/2] scsi: enclosure support
From: |
Paolo Bonzini |
Subject: |
Re: [Qemu-devel] [PATCH 0/2] scsi: enclosure support |
Date: |
Fri, 4 Aug 2017 02:10:11 -0400 (EDT) |
> On 08/03/2017 05:10 PM, Paolo Bonzini wrote:
> > On 03/08/2017 15:26, Hannes Reinecke wrote:
> >> Hi all,
> >>
> >> due to a customer issue I've added simple subenclosure support
> >> to the SCSI emulation. The patch simply converts the current invisible
> >> LUN0 into an enclosure device; existing setups using LUN0 as disks or
> >> CD-ROMs will not be affected.
> >
> > What is the issue exactly? That is, for what is it necessary to have a
> > dummy enclosure?
> >
> Well, stock linux displays some very interesting error messages for
> these types of enclosures. Which was the prime mover for doing this.
--verbose?
> > I agree with Dan that this need machine type compatibility gunk. For
> > example, could the new device affect /dev/sgN numbering?
>
> Yes, indeed it would.
>
> What about a new option to the scsi driver?
If you do that, you've done 99% of the work to do compatibility so I
won't complain and do the 1% myself. :)
Paolo