2761,3 GB instead of 3TB

[mindaugas]

HI,
I got 4  Hitachi Ultrastar 7K4000 HDD 3TB  disks,
but it's shown by buffalo teraStation(TS4400D), that every disk has only 2761,3 GB (each) without RAID.



Is this hitachi disk or buffalo teraStation issue ?

Terabyte (TB) 1TB = 1024 GB, so I missing about 250*4 ~1TB in the system.

Thanks for help,
Min.

[Eastmarch]

http://en.wikipedia.org/wiki/Binary_prefix#Inconsistent_use_of_units

All drive manufacturers sell drives in SI decimal capacities, whereas most computer OSes report in Binary capacities.

One Decimal Terabyte = 1 Trillion Bytes
One Binary Terabyte (Tebibyte, though this is not a universal nomenclature yet) = 1,099,511,627,776 bytes.

This is a normal situation.