Messages in this thread | | | Date | Thu, 01 Apr 2004 13:24:11 -0500 | From | Jeff Garzik <> | Subject | Re: [PATCH] Bogus LBA48 drives |
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Geert Uytterhoeven wrote: > On Wed, 31 Mar 2004, Jeff Garzik wrote: > >>Andries Brouwer wrote: >> >>>Hmm. I read in my copy of ATA7: >>> >>> 6.16.55 Words (103:100): Maximum user LBA for 48-bit Address feature set >>> Words (103:100) contain a value that is one greater than the maximum LBA >>> in user accessable space when the 48-bit Addressing feature set is supported. >>> The maximum value that shall be placed in this field is 0000FFFFFFFFFFFFh. >>> Support of these words is mandatory if the 48-bit Address feature set is supported. >>> >>>Do you read differently? >> >>The errata is, one needs to check that field for zero, and use the other >>one if so... > > > Which is not sufficient for `my' drives, since I get disk errors if I just use > the other capacity field and don't disable LBA48 completely. > > I'll check the ATA specs myself, if I find some time...
If it's reporting the "48-bit feature set supported" but doesn't really support it, I'd vote for broken drive :) Maybe check for a firmware update on the manufacturer's web site?
Jeff
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