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Thursday, January 26, 2006
Toshiba MK1032GAX

1. Introduction

Toshiba is a giant global manufacturer with a large product line and several divisions. One of its divisions, the Storage Device Division, recently released the MK1032GAX hard disc drive, a 2.5-inch HDD with 100GB capacity hard disk. According to Toshiba, the MK1032GAX offers the industry's highest areal density per platter, at 83.2 gigabits per square inch while the drive's 5400 RPM motor speed, improves system-level performance by as much as 12 percent when compared to 4200 RPM.

We received the MK1032GAX hard disk drive from Toshiba, shown below.


- 100GB capacity
- Rotational Speed of 5,400rpm
- Fluid Dynamic Bearing (FDB) motor drive
- 9.5mm High
- 12ms Average Seek Time
- ATA-6 Interface
- 100MB/sec Transfer Rate
- 16MB Buffer
- 300,000 MTTF Hours


TOSHIBA MK 1032GAX 2.5"  HDD 100GB
Data Storage Physical:
Per drive, formatted 100.030GB
Data Heads 4
Number of Disks 2
Logical Configuration:
Heads 16
Cylinders 16,383
User Sectors/Track at zone 0 63
Logical Blocks (LBA) 195,371,568
Data Transfer Rate:
Max transfer rate to host 100MB/sec
Seek Time:
Track-to-track 2ms
Average 12ms
Maximum 22ms
Nominal Power Requirements:
Logic +5V(+/-5%)
Start 4.5watts (max)
Seeking 2.4watts (typ)
Reading/Writing 2.0watts (typ)
Idle 0.85watts (typ)
Standby 0.18watts (typ)
Sleep 0.1watts (typ)
Rotational Speed 5,400rpm
Average Latency 5.55ms
Interface ATA-2/3/4/5/6
Buffer 16MB
Height 0.37" (9.5mm)
Width 2.75" (69.85mm)
Depth 3.94" (100mm)
Weight 3.56 oz (101g)
Ambient Temperature:
Operating 41o - 131oF (5o to 55oC)
Non-Operating -4o - 140oF (-20o to 60oC)
Shipping -40o - 158oF (-40o to 70oC)
Vibration and Shock:
Operating Vibration 9.8 m/s2 (1.0G), 5 - 500 Hz
Operating Shock 325g
Non-Operating Shock 850g
Preventive Maintenance None
MTTF (Power on hours) 5 years or 20,000 power ON hours
Product Life 5 years or 20,000 power ON hours

In order to investigate the difference between a 5400rpm HDD with 16MB buffer and a 4200rpm HDD with 8MB buffer, we compared the Toshiba MK1032GAX with the Fujitsu MHT2080AT. We chose to use the Fujitsu drive in this comparison due to the fact that most notebooks have a drive similar to the Fujitsu HDD.

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