>>>>> "Alexander" == Alexander Clausen <alex@xxxxxxxxx> writes: Alexander> Hi, i just bought some WD20EARS harddisk. They are supposed Alexander> to have 4k physical sector size, right? My system seems to Alexander> think they are not: Alexander> alex@hal:/sys/block/sdb/queue$ cat logical_block_size Alexander> physical_block_size 512 512 Alexander> so, who is right? For unknown reasons these drive report themselves as 512-byte drives despite using 4096-byte sectors internally. There really isn't much we can do about devices that don't tell us the truth. However, recent fdisk/parted will align on a 1MB boundary by default which happens do the trick in this particular case (because the WDC drive is naturally aligned). Alexander> 1 Primary 0 3907024064 63 3907024065 Linux (83) None Alexander> alex@hal:~$ Alexander> is that okay for 4k sector size? No, you should shift the start sector using the fdisk's advanced menu. -- Martin K. Petersen Oracle Linux Engineering -- To unsubscribe from this list: send the line "unsubscribe linux-ide" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
