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Toshiba 10,500rpm 2.5-Inch SAS HDD Now at 900GB

Finally on par with all its competitors

Toshiba Corporation announced the launch a line-up of four 2.5-inch enterprise HDDs with a 10,500rpm rotation speed.

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The new drives include the 15mm, 6Gb SAS, which offers a 900GB capacity, the industry’s highest class. Volume shipment will start in August.

An improved magnetic recording head and disk magnetic layer give the AL13SEB900 an areal density of 856Mbit/mm² (552Gbpsi) and realizes a 900GB capacity, the industry’s highest class.

The internal transfer rate is 286MB/s, a boost of approximately 32% against the previous generation MBF2600RC, due to improved liner recording density.

The AL13SEB900 family is the first HDD series from Toshiba to employ a dual-stage head positioning actuator, which improves head positioning accuracy by approximately 30%. It achieves accurate tracking in a narrow tracking band, securing stable operation.

The energy consumption efficiency is approximately 41% higher than that of its predecessor, MBF2600RC, due to lower power consumption by the controller IC and increased storage capacity.

The AL13SEB900 family is also compatible with the European Union’s RoHS directive and is Halogen-Free/Antimony-Free.

Demand for 2.5-inch HDD for enterprise applications is growing, as they have a smaller footprint and overall size and consume less power than 3.5-inch drives, while offering high level processing speeds and generating less heat.

Toshiba will meet the demand for enterprise applications, such as servers and storage systems by enhancing its line-up of 2.5-inch HDD with high capacity drives operating at 10,500rpm.

Key Features

  • The industry’s highest capacity class for enterprise HDD operating at 10,500rpm (AL13SEB900): achieves an industry-leading 900GB capacity by using an improved perpendicular magnetic recording technology head and a disk with an enhanced magnetic layer to realize an areal density of 856Mbit/mm² (552 Gbpsi).
  • Dual-stage head positioning actuator for improved tracking accuracy: the first HDD series from Toshiba to employ a dual-stage head positioning actuator to improve tracking performance. It integrates a fine actuator with piezoelectric element on the tip of tracking arm that improves on the positioning accuracy of a single stage head positioning actuator by approximately 30%. Highly accurate tracking in a narrow tracking band secures stable operation and improves the reliability of reading and writing.
  • High speed processing (AL13SEB900): Improved linear recording density realizes an internal data transfer rate of 286MB/s, approximately 32% faster than the MBF2600RC;
  • Environmentally Conscious Products: These HDD products are halogen-free/antimony-free; achieves an energy consumption efficiency of 0.0044, approximately 41% improvement over the MBF2600RC; enhanced power management allows the disk to spin at a slower rate when not being addressed, securing a combination of fast recovery from stand-by mode and low-power consumption; decreases CO² emissions across the product lifecycle and AL13SEB900 reduces by approximately 2.4kg per year by cutting power consumption and environmental burdens from the raw materials stage; compatible with the European Union’s RoHS directive on the elimination of six hazardous substances in electrical and electronic equipment.

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 [8] One Megabyte (1MB) is calculated as 1,048,576bytes.
 [9] Category names defined by Japan’s Ministry of Economy,
      Trade and Industry are applied in the Japanese market.

Comments

Toshiba Corp. of Japan stated that the AL13SEB900 is the "industry's highest capacity class for drives with 10,500rpm rotation speed as of July 11, 2012". It's true if you consider that Toshiba is the only one at 10,500rpm, and not 10,000rpm as its competitors. But it's really a tiny difference in term of performance.

We also note that this sentence was not inserted in the press releases announcing the same new product as published by Toshiba's Storage Product Business Unit, division of Toshiba America Electronic Components and also Toshiba Electronics Europe Storage Products Division.

All other HDD manufacturers already offer enterprise HDDs at 10,000rpm in SFF form factor (2.5-inch; 15mm z-height) at 900GB, and all of them with 6Gb SAS interface.

In fact, Toshiba is finally on par with them after updating its MBF260LRC model that was at a maximum 600GB capacity.

     2.5-inch HDDs in 10,000rpm-range at 900GB

Vendor
Model
Launched
      in

 Interface    Max.
Capacity
Hitachi GST Ultrastar
C10K900
 12/2011 6Gb SAS  900GB
Seagate
Savvio 10K5  11/2011 6Gb SAS,
4Gb FC
 900GB
Toshiba
AL13SEB900  07/2012 6Gb SAS  900GB
WD XE  03/2012 6Gb SAS  900GB

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