Hitachi Global Storage Technologies, which was recently acquired by Western Digital, announced today it had begun to ship the Ultrastar 7K4000 – the first enterprise-class 4TB hard disk drive.
The Ultrastar 7K4000 line is shipping now in limited quantities: models are offered in 4TB, 3TB and 2TB capacities. The drives have a 6Gb/s Serial ATA interface, a 7,200rpm spin speed, and are based on up to five platters with a 446Gb/inch2 (691Mb/mm2) areal density.
Hitachi claims the drives will have a 171MB/s sustained transfer rate, 8ms seek time, and a 11.4W average read/write power consumption.
According to Hitachi, the new drives use Advanced Format sector storage technology which utilizes a 4KB physical sector that is more efficient than traditional 512 byte sector storage.
512 byte storage has been the storage sector format of choice since the first hard-disks were released in 1956.
The 7K4000 will be compatible with existing systems because 512 byte hardware emulation (512e), which involves packaging eight 512 byte sectors into one 4KB sector.
“With our new Advanced Format Ultrastar 7K4000 drives, we are providing enormous capacity earlier than otherwise possible for environments optimised for this technology,” said Hitachi Global Storage Technologies’ vice president of product marketing, Brendan Collins, in a statement.
The drives are being marketed for use in high intensity enterprise applications such as cloud computing, data warehousing, or video-on-demand.