Re: [PATCH] ALUA support for scsi_debug

Douglas Gilbert
2006-10-18T17:09:41Z

Hannes Reinecke wrote:
> Hi all,
>
> I've hacked up scsi_debug to support REPORT TARGET PORT GROUPS.
> In combination with vpd_use_hostno=0 it'll now support multipathing
> nicely.
> Doug, there is reference to port_a and port_b in the VPD page support.
> However, port_b appearently is just a fake entry with no (virtual)
> device backing.

Hannes,
Yes, I was mimicking a SAS drive with the secondary port
unconnected.

> We could eg use the 'channel' value to refer the relative port number,
> so that host & channel act as a fan-out for multipathing.

I'll have a look, perhaps it could be wired when
vpd_use_hostno=0 .

> James, please apply.

Umm, I would like to find out why that patch oopses
my machine when I load the scsi_debug module.

lk 2.6.19-rc2 has regressed in a few areas, for example
after an oops, inane messages from atkbd repeat ad
nauseum, making the oops hard to analyse. And my SMC2835W
(prism54 driver) no longer works.

Doug Gilbert