Seagate ST373405LW/LWV/LC/LCV ユーザーズマニュアル
Cheetah 73LP Product Manual, Rev. E
9
4.0
Performance characteristics
4.1
Internal drive characteristics (transparent to user)
4.2
SCSI performance characteristics (visible to user)
The values given in Section 4.2.1 apply to all models of the Cheetah 73LP family unless otherwise specified.
Refer to Section 9.10 and to the
Refer to Section 9.10 and to the
SCSI Interface Product Manual, part number 75789509, for additional timing
details.
4.2.1
Access time [5]
4.2.2
Format command execution time (minutes) [1]
4.2.3
Generalized performance characteristics
Data buffer transfer rate to/from disc media (one 512-byte sector):
ST373405
ST336605
Drive capacity
73.4
36.7
GByte (formatted, rounded off values)
Read/write heads
8
4
Bytes/track
397,385
397,385
Bytes (average, rounded off values)
Bytes/surface
12,100
12,100
Mbytes (unformatted, rounded off values)
Tracks/surface (total)
29,549
29,549
Tracks (user accessible)
Tracks/inch
38,000
38,000
TPI
Peak bits/inch
474
474
KBPI
Internal data rate
399-671
399-671
Mbits/sec (variable with zone)
Disc rotational speed
10,041
10,041
r/min (+0.5%)
Average rotational latency
2.99
2.99
msec
Including controller overhead
(without disconnect) [1] [3]
(without disconnect) [1] [3]
Not including controller overhead
(without disconnect) [1] [3]
(without disconnect) [1] [3]
Drive level
Drive level
Read
Write
Read
Write
msec
msec
ST373405
Average—Typical [2]
Average—Typical [2]
5.3
5.7
5.1
5.5
Single Track—Typical [2]
0.6
0.8
0.4
0.6
Full Stroke—Typical [2]
9.6
10.0
9.4
9.8
ST336605
Average—Typical [2]
Average—Typical [2]
4.9
5.4
4.7
5.2
Single Track—Typical [2]
0.6
0.8
0.4
0.6
Full Stroke—Typical [2]
8.8
9.3
8.6
9.1
ST373405
ST336605
Maximum (with verify)
120
90
Maximum (no verify)
60
45
Minimum sector interleave
1 to 1
Minimum [3]*
38.4
Mbytes/sec
Average [3]
52.0
Mbytes/sec
Maximum [3]
63.9
Mbytes/sec