On 07/05/2013 07:19 AM, Tudor Holton wrote: > $ sudo fdisk -l > Disk /dev/sdc: 2000.4 GB, 2000397852160 bytes > 255 heads, 63 sectors/track, 243201 cylinders, total 3907027055 sectors > > $ sudo smartctl -a /dev/sdc > Model Family: Seagate Barracuda (SATA 3Gb/s, 4K Sectors) > Device Model: ST2000DM001-1CH164 > Firmware Version: CC43 > User Capacity: 2,000,397,852,160 bytes [2.00 TB] According to the product manual this disk has guaranteed sectors count of 3,907,029,168 (one sector counts as 512 bytes). 3,907,029,168 * 512 = 2,000,398,934,016 bytes As Mikael wrote is probably your controller. -- Kai Stian Olstad -- To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html