Toshiba Satellite M100 - Inch Hard Disk Drive

1.4 Optical device Drives 1 Hardware Overview
1.3 2.5-inch Hard Disk Drive
The internal HDD is a random access non-volatile storage device. It has a non-removable
2.5-inch magnetic disk and mini-Winchester type magnetic heads. The computer supports up to
120G HDD.
The HDD is shown in Figure 1-1. Specifications are listed in Table 1-1.
Figure 1-1 2.5-inch HDD
Items 40GB 60GB 80GB 100GB 120GB
Formatted
capacity (GB)
37.26 55.89 74.52 93.15 111.8
Logical Blocks
(LBA)
78,125,000 117,187,500 156,301,488 195,371,568 234,441,648
Rotational
speed (rpm)
5400 5400/7200 5400/7200 5400/7200 5400
Toshiba HDD
Buffer (MB)
16 16/NA 16/NA 16/NA 8
Hitachi HDD
Buffer (MB)
8 8/8 8/8 8/8 NA
Fujitsu HDD
Buffer (MB)
8 8 8 8 NA
Bytes per sector 512 512 512 512 512
Table 1-1 2.5-inch HDD specifications
Satellite M100 Series Maintenance Manual [CONFIDENTIAL] 1-9