According to a leaked document from Western digital they plan to release the 5TB hard drive in Q4 2013. The models they the will release are the "green desktop" and "red" (for NAS).
We can expect other companies to release their 5TB around that date (before or earlier)
Where 4 TB is currently the hardliner-maximum, WD is still convenient to release their new data-libraries in time. If they’re helium-filled, is unknown. In earlier news, WD has stated that first drives filled with helium and thus offer new opportunities, will be presented in 2013, the news did not state of these yet. But it’s interesting to see where technology goes to
BenChin): Western Digital Boosts Hard Drive Capacity With Helium - Storage -
WD will release the Green and Red 5tb hard drive in December 2013
UPDATE 2: Seagate RoadmapWestern Digital 5TB drives to arrive in December 2013
April 3, 2013
Western Digital’s much hyped 5TB drives which hit the news headlines a few weeks ago, will arrive in December 2013. Although, there is no official confirmation on this issue, the latest developments suggest as such. The company is in plans to official release its 5TB capacity SATA drives by the end of this year after the release of its green drives.
As per a WD roadmap, Western Digital will be offer WD Green WD40EZRX 4TB drive and WD Red WD40EFRX 4TB drive by third quarter of 2013 and then will go on with the release of WD Green WD50EZRX 5TB drive and WD Red WD50EFRX 5TB by December 2013.
WD Green and WD Red drives are being offered with spindle speeds ranging in between 5400rpm- 5900rpm and will be optimized with large capacities. These green drives will have less power consuming capabilities and can operate in RAID mode.
The only suspense in the release of WD 5TB SATA HDDs is the number of platters usage. Some, analysts suggest that WD will go on with a technical design of four 1.25TB platters fitted into a single drive frame, while some suggest that it will come with the concept of five 1TB platters embedded into a single system.
Presently, there is no official announcement from Western Digital representatives on this issue and are in a proverbial mind set of following “Silence is bliss”.
nterprise hard drives roadmap published by Myce web-site, the new enterprise-class Terascale HDDs with 5TB and 6TB capacities due in the first half of 2014 will belong to the same code-named Constellation ES.3 “Megalodon” family as the current 4TB drives. The drives are likely to feature 5900rpm spindle speed, 64MB DDR2 cache as well as Serial ATA-600 interface. What is unclear is which platters will be featured in the 5TB and 6TB HDDs, reports xbitlabs. The Terascale hard disk drives are based on enterprise-class platform with high vibration tolerance (HVT) technology and provide data centers with the maximum storage scalability they need to meet demands in low workload, 24x7 replicated environments. Equipped with Seagate’s own Instant Secure Erase (ISE) technology, the Terascale HDD saves money and time by reducing drive erasure times from hours to milliseconds providing quick, safe and easy drive disposal or repurposing.