Drive - HP ProSignia 120 Maintenance And Service Manual

6.5 LS-120 Drive
Formatted
Capacity (Bytes)
Sector Size
(bytes)
Sectors
Magnetic
Tracks/ Surface
Optical Servo
Tracks/Surface
Sectors/track
Sector
Interleave
Spare sectors
Zones (each
side)
Average
random seek
Track-to-Track
seek
Max single seek
Average Latency
Motor rpm
Motor Start
Time,
Track Density
Track Width
Encoding
Method
Max Flux
Density
Recording
Density
Nominal Transfer
Rate
Nominal
Sustained
Transfer Rate
across interface
Buffer Transfer
rate
6-6 Specifications
LS-120 Drive Specifications
120 MB 1.7 MB DMF
125,958,144 1,720,320
512 512
246,527 3360
1,736 80
900 N/A
51-92 21
1:1 2:1
170
55
70 ms 70 ms
20 ms 25 ms
120 ms 170 ms
41.67 ms 41.67 ms
720 720
0.5% 0.5%
800 ms 800 ms
2,490 TPI 135 TPI
8 m 125 m
(1,7)RLL MFM
33,660 FCI 17,334 FCI
44,880 BPI 17,334 BPI
375-680 150
KB/sec KB/sec
313-565 65 KB/sec
KB/sec Read,
32 KB/sec Write
4.0 MB/sec 4.0 MB/sec
Table 6-6
1.44 MB 1.2 MB
1,474,560 1,261,568
512 1024
2880 1,232
80 77
N/A N/A
18
1:1 1:1
0 0
1 1
70 ms 70 ms
25 ms 25 ms
170 ms 170 ms
41.67 ms 41.67 ms
720 720
0.5% 0.5%
800 ms 800 ms
135 TPI 135 TPI
125 m 125 m
MFM MFM
17,334 FCI 17,334
FCI
17,334 BPI 17,334
BPI
150 KB/sec 125
KB/sec
55 KB/sec 49 KB/sec
Read, Read,
28 KB/sec 25 KB/sec
Write Write
4.0 MB/sec 4.0
MB/sec
1.2 MB 720 KB
1,228,800 737,280
512 512
2400 1,440
80 80
N/A N/A
8 15 9
1:1 1:1
0 0 0
1 1 1
70 ms 70 ms
25 ms 25 ms
170 ms 170 ms
41.67 ms 41.67
ms
720 720
0.5% 0.5%
800 ms 800 ms
135 TPI 135 TPI
125 m 125 m
MFM MFM
17,334 FCI 8,717
FCI
17,334 8,717
BPI BPI
125 75
KB/sec KB/sec
46 KB/sec 28
Read, KB/sec
23 KB/sec Read,
Write 14
KB/sec
Write
4.0 4.0
MB/sec B/sec
640 KB
655,360
512
1,280
80
N/A
8
1:1
0
1
70 ms
25 ms
170 ms
41.67
ms
720
0.5%
800 ms
135 TPI
125 m
MFM
8,717
FCI
8,717
BPI
75
KB/sec
28
KB/sec
Read,
14
KB/sec
Write
4.0
B/sec