On 08/04/2017 08:10 AM, Paolo Bonzini wrote: > >> 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? > [ 12.958454] scsi 1:0:0:254: Wrong diagnostic page; asked for 2 got 0 [ 12.958456] scsi 1:0:0:254: Failed to get diagnostic page 0xffffffea [ 12.958457] scsi 1:0:0:254: Failed to bind enclosure -19 [ 12.959392] ses 1:0:0:254: Attached Enclosure device
>>> 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. :) > Okay, will be doing so. Cheers, Hannes -- Dr. Hannes Reinecke Teamlead Storage & Networking h...@suse.de +49 911 74053 688 SUSE LINUX GmbH, Maxfeldstr. 5, 90409 Nürnberg GF: F. Imendörffer, J. Smithard, J. Guild, D. Upmanyu, G. Norton HRB 21284 (AG Nürnberg)
