Toshiba T1910 - 1.4 2.5-inch Hard Disk Drive

1.4 2.S-inch Hard Disk Drive
The Hard Disk Drive (HOD) 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 T1910 Series supports a
120 MB or 200 MB HDD.
A T1910 Series HDD
is shown in Figure 1-5, and specifications are listed in Table 1-2.
Figure 1-5 2.5-inch HDD
Table 1-2 2.5-inch HDD Specifications
120MB 200MB
(CP2124)
(MK2124FC)
(MK2224FC) (ST9235A)
Storage capacity (MB)
Formatted
121.6
130.1 213.0 209.7
Number of disks
2 2 2 3
Data heads
4 4 4
6
Data surfaces
4 4 4 6
Tracks per surface
1,123 1,155
1,560 985
Sectors per track 53 (+1) 55 (+1)
-
32
Bytes per sector
512 512 512
512
Access time (ms)
Track
to track
10 5 3 5
Average
17
17 12 16
Maximum
35
36
25 30
Rotation speed (rpm)
3,743
3,200 4,000 3449
Data transfer rate (bps)
Tolfrom media
IBM 15.3 M 18.9 to 4M
31.6 M
Interleave
1 :1
1:1
1:1
1 :1
Recording method
2-7 RLL
1-7 RLL 1-7 RLL 1-7 RLL
T1910 Series Maintenance Manual Addendum ----------------
Add-7