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SubjectRe: READ CAPACITY (16) failing
On Fri, Apr 10, 2009 at 03:28:38PM -0700, James Bottomley wrote:
> >
> > Why would I never the see the command in the driver?
>
> Because your devices are reporting compliance to a standard before RC16
> was implemented (we have a check in sd_try_rc16_first() to see if you
> comply to higher than SBC-2). Then, after you've failed this, if you
> don't return the conventional 0xffffffff to RC10, we never retry with
> RC16.

Thanks, James, that looks like the culprit. The LUN actually reports that it
is a SCSI_SPC_3 device but the controller reports SCSI_UNKNOWN. I'll work
with the firmware guys to fix that.
Oddly enough, others here don't report seeing the same RC16 failure. Gets
better and better.

Thanks,
mikem


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