>>>>> "Ted" == Theodore Ts'o <tytso@xxxxxxx> writes: Ted, Ted> sg_readcap doesn't report the physical sector size, just the Ted> logical block size: Ted> # sg_readcap /dev/sdd Ted> Read Capacity results: Ted> Last logical block address=4000797359 (0xee7752af), Number of Ted> blocks=4000797360 Logical block length=512 bytes Ted> Hence: Ted> Device size: 2048408248320 bytes, 1953514.3 MiB, 2048.41 GB You need to run sg_readcap with the -l option to get to the physical block size exponent. Please let us know if that makes a difference. -- 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