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Wednesday, July 11, 2012
New Toshiba 2.5-inch HDDs Offer Up To 900GB Of Storage, 10,500 RPM


Toshiba today launched a line-up of four 2.5-inch enterprise HDDs with a 10,500 RPM rotation speed. The new drives include the AL13SEB900, which offers a capacity of 900GB.

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

The AL13SEB900 family is the first HDD series from Toshiba to employ a dual-stage head positioning actuator. 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.

The energy consumption efficiency of AL13SEB900 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.

Toshiba's new HDD line has been designed for enterprise applications, such as servers and storage systems. Volume shipments will start in August.

Specifications

Model Number  AL13SEB900  AL13SEB600  AL13SEB450  AL13SEB300
Capacity 
900GB 
600GB 
450GB 
300GB
Average seek time  Read 
3.7msec
Write 
4.1msec
Interface 
SAS 2.0
Interface speed 
6Gb/s
Rotational speed 
10,500rpm
Buffer memory 
64 MiB
External dimensions 
69.85mm (W) x 100.45mm (L) × 15.00mm (H)
Weight 
240g (Max.)
Power consumption  Idle 
4.7W
Low power 
2.7W
Energy consumption efficiency 
0.0044 
0.0057 
0.0076 
0.010
Category name
F
Acoustics (Ready) 
30dB
Vibration resistance  Operating 
9.8m/s2 {1.0G, 20-300Hz}
Non-operating 
49m/s2 {5.0G, 20-300Hz}
Shock resistance  Operating 
980m/s2 {100G, 1ms}
Non-operating 
3,920m/s2 {400G, 2ms}


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