I have a Buffalo Terastation H-HD1.0TG/R5 with comes with 4 x 250GB Western Digital drives. I have purchased 4 x Seagate ST3750640A Barracuda 750GB drives with the view to take the Terastation from 1TB up to 3TB.
When I installed the first drive its reported size is 558GB which is roughly a third less than expected.
The Buffalo website has a KB article which states that drives may state that they have more capacity that in reality:
"Computer memory is addressed in base 2, due to its design, so memory size is always a power of two. It is thus convenient to measure in binary units. Other computer measurements, like storage hardware size, data transfer rates, clock speeds, operations per second, and so on do not have an inherent base, and are usually measured in decimal units. Consumers who are unaware of varying meanings of the abbreviations often feel short changed when they discover the difference, and claim that manufacturers of drives and data transfer devices are using the decimal measurements in an intentionally misleading way to inflate their numbers, though these measurements are the norm in all fields other than computer memory and storage.
For instance, if a hard drive is said by a vendor to store 140 GB of data, the disk can store 140,109 bytes. Generally, operating systems allocate and report disk and files sizes in binary units, and present them using abbreviations (e.g GB, MB, KB) also used by the decimal system, so this drive would be reported as "130 GB" (actually 130.38 Gig). "
I seen on other posts that Seatools may help. So if I insert the drive into a PC and run Seatools to set the size - will this work?
I feel a short changed as I have purchased 4 of these 750gb drive and looks like I would only be able to use a 3rd of their capacity. I might as well have got 4 x 500gb drive.