>>>>> "Doug" == Douglas Gilbert <dougg@xxxxxxxxxx> writes: Doug> SAT is now a standard and an agenda item for SAT-2 is to wire Doug> ATA8-ACS's large sector size support to the additions to SBC-3 Doug> mentioned above. Doug> I'm not sure how this stuff plays with end to end data Doug> protection :-) The proposal you forwarded talks about "transformed protection information" but doesn't go into details. Assuming the drive has 4KB physical blocks and receives 512 byte logical blocks, it's easy to verify the integrity of the 512 byte sector and then do R-M-W on the physical. Similarly, on the way out logical guard and ref tags could be generated after integrity of the physical has been verified. The only thing that really bites is that the app tag will be per physical block and not per logical (unless the drive leaves enough space to store 8 tags per 4KB sector). -- Martin K. Petersen Oracle Linux Engineering - To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
