Re: [PATCH][SCS] sd: Read Capacity if (16) fails

Martin K. Petersen
2008-08-06T16:53:22Z

>>>>> "James" == James Bottomley <James.Bottomley@HansenPartnership.com> writes:

James> On Wed, 2008-08-06 at 16:34 +0100, Hugh Dickins wrote:
>> PQual=0 Device_type=0 RMB=1 version=0x00 [no conformance claimed]

James> We could try using this as the trigger. I assume all DIF
James> supporting devices must also claim conformance to SPC3/SBC2 or
James> higher?

You'd think, wouldn't you?

Originally I only checked for PROTECT if version was SBC2 or better.
But as it turns out I have drives that only report SBC and yet they do
DIF. This old version is apparently reported to prevent problems in
other operating systems.

*sigh*

--
Martin K. Petersen Oracle Linux Engineering