2.5-inch drive stores 100GBytes

Toshiba Corporation has developed a 2.5-inch 9.5mm high hard-disk drive with a capacity of 100GBytes.

Toshiba Corporation has developed a 2.5-inch 9.5mm high hard-disk drives (HDD) with a capacity of 100GBytes.

Toshiba achieved the 100GByte size of the MK1031GAS drive using an areal density of 80Gbits of data per square inch. This was achieved by replacing the Pico Sliders attached to the drive’s heads, which maintain the appropriate distance from the disk during read and write operations, with Femto Sliders that are 35% smaller and much lighter.

Advances were also achieved in the thin-film technology for both the head and the platter.

The new drive’s shock resistance of 3,185 m/s2 (325G, 2msec) is 50% higher than in Toshiba’s current 2.5-inch HDD, due to the use of the smaller, lighter Femto Sliders in combination with a lighter head-suspension and head arm.

Power consumption of the drive is approximately 20% lower on average than the company’s current drive due to the use of a pulse width modulation (PWM) technique that controls disk rotation speed by switching the power supply to the spindle motor on and off at a certain frequency.

Samples of the MK1031GAS will be available in May.

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