>>>>> "Pasi" == Pasi Kärkkäinen <pasik@xxxxxx> writes: Pasi> So physically the disk is using 520 bytes/sector (and needs to Pasi> support that), but logically the HBA presents 512 bytes/sector + Pasi> PI.. is that correct? Yep. The beauty of PI is that we can store the extra stuff without having to deal with weird block sizes. Pasi> I guess what I'm asking is: Can I use sg_format to enable Pasi> checksums/protection on any disk that physically supports 520 Pasi> bytes/sector, or does the disk need to have special T10 data Pasi> protection support aswell? The disk needs to support T10 PI (PROTECT=1 in the Standard Inquiry VPD page). We don't support driving the HBA in PI mode with a non-PI target. -- 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
