Compaq Armada E700 Armada E700 - Page 136

€€LS-120 Drive, Table 6-8

Get Compaq Armada E700 - Notebook PC PDF manuals and user guides View all Compaq Armada E700 manuals
Add to My Manuals
Save this manual to your list of manuals

Page 136 highlights

6.7 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 Table 6-8 LS-120 Drive 1.68 MB DMF 1.44 MB 1.2 MB 1.2 MB 720 KB 1,720,320 1,474,560 1,261,568 1,228,800 737,280 512 512 1,024 512 512 3,360 80 2,880 80 1,232 77 2,400 80 1,440 80 N/A N/A N/A N/A N/A 21 2:1 0 1 70 ms 18 1:1 0 1 70 ms 8 1:1 0 1 70 ms 15 1:1 0 1 70 ms 9 1:1 0 1 70 ms 25 ms 25 ms 25 ms 25 ms 25 ms 170 ms 41.67 ms 720±0.5% 800 ms 135 TPI 125 µm MFM 17,334 FCI 17,334 BPI 150 KB/sec 65 KB/sec read, 32 KB/sec write 4.0 MB/sec 170 ms 170 ms 170 ms 170 ms 41.67 ms 41.67 ms 41.67 ms 41.67 ms 720±0.5% 720±0.5% 720±0.5% 720±0.5% 800 ms 800 ms 800 ms 800 ms 135 TPI 135 TPI 135 TPI 135 TPI 125 µm 125 µm 125 µm 125 µm MFM MFM MFM MFM 17,334 FCI 17,334 FCI 17,334 FCI 17,334 FCI 17,334 BPI 17,334 BPI 17,334 BPI 17,334 BPI 150 KB/sec 125 KB/sec 125 KB/sec 75 KB/sec 55 KB/sec read, 28 KB/sec write 49 KB/sec read, 25 KB/sec write 46 KB/sec read, 23 KB/sec write 28 KB/sec read, 14 KB/sec write 4.0 MB/sec 4.0 MB/sec 4.0 MB/sec 4.0 MB/sec Specifications 6-7

  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10
  • 11
  • 12
  • 13
  • 14
  • 15
  • 16
  • 17
  • 18
  • 19
  • 20
  • 21
  • 22
  • 23
  • 24
  • 25
  • 26
  • 27
  • 28
  • 29
  • 30
  • 31
  • 32
  • 33
  • 34
  • 35
  • 36
  • 37
  • 38
  • 39
  • 40
  • 41
  • 42
  • 43
  • 44
  • 45
  • 46
  • 47
  • 48
  • 49
  • 50
  • 51
  • 52
  • 53
  • 54
  • 55
  • 56
  • 57
  • 58
  • 59
  • 60
  • 61
  • 62
  • 63
  • 64
  • 65
  • 66
  • 67
  • 68
  • 69
  • 70
  • 71
  • 72
  • 73
  • 74
  • 75
  • 76
  • 77
  • 78
  • 79
  • 80
  • 81
  • 82
  • 83
  • 84
  • 85
  • 86
  • 87
  • 88
  • 89
  • 90
  • 91
  • 92
  • 93
  • 94
  • 95
  • 96
  • 97
  • 98
  • 99
  • 100
  • 101
  • 102
  • 103
  • 104
  • 105
  • 106
  • 107
  • 108
  • 109
  • 110
  • 111
  • 112
  • 113
  • 114
  • 115
  • 116
  • 117
  • 118
  • 119
  • 120
  • 121
  • 122
  • 123
  • 124
  • 125
  • 126
  • 127
  • 128
  • 129
  • 130
  • 131
  • 132
  • 133
  • 134
  • 135
  • 136
  • 137
  • 138
  • 139
  • 140
  • 141
  • 142
  • 143
  • 144
  • 145
  • 146
  • 147
  • 148
  • 149
  • 150
  • 151
  • 152
  • 153
Specifications
6-7
6.7
LS-120 Drive
Table 6-8
LS-120 Drive
1.68 MB
DMF
1.44 MB
1.2 MB
1.2 MB
720 KB
Formatted
capacity (bytes)
1,720,320
1,474,560
1,261,568
1,228,800
737,280
Sector size
(bytes)
512
512
1,024
512
512
Sectors
3,360
2,880
1,232
2,400
1,440
Magnetic tracks
surface
80
80
77
80
80
Optical servo
tracks/surface
N/A
N/A
N/A
N/A
N/A
Sectors/track
21
18
8
15
9
Sector interleave
2:1
1:1
1:1
1:1
1:1
Spare sectors
0
0
0
0
0
Zones (each side)
1
1
1
1
1
Average
random seek
70 ms
70 ms
70 ms
70 ms
70 ms
Track-to-track
seek
25 ms
25 ms
25 ms
25 ms
25 ms
Max single seek
170 ms
170 ms
170 ms
170 ms
170 ms
Average latency
41.67 ms
41.67 ms
41.67 ms
41.67 ms
41.67 ms
Motor RPM
720±0.5%
720±0.5%
720±0.5%
720±0.5%
720±0.5%
Motor start time
800 ms
800 ms
800 ms
800 ms
800 ms
Track density
135 TPI
135 TPI
135 TPI
135 TPI
135 TPI
Track width
125 μm
125 μm
125 μm
125 μm
125 μm
Encoding method
MFM
MFM
MFM
MFM
MFM
Max flux density
17,334 FCI
17,334 FCI
17,334 FCI
17,334 FCI
17,334 FCI
Recording density
17,334 BPI
17,334 BPI
17,334 BPI
17,334 BPI
17,334 BPI
Nominal transfer rate
150 KB/sec
150 KB/sec
125
KB/sec
125
KB/sec
75 KB/sec
Nominal sustained transfer
rate across interface
65 KB/sec
read,
32 KB/sec
write
55 KB/sec
read,
28 KB/sec
write
49 KB/sec
read,
25 KB/sec
write
46 KB/sec
read,
23 KB/sec
write
28 KB/sec
read,
14 KB/sec
write
Buffer transfer rate
4.0 MB/sec
4.0 MB/sec
4.0 MB/sec
4.0 MB/sec
4.0 MB/sec