Performance Characteristics; Internal Drive Characteristics (Transparent To User); Scsi Seek Performance Characteristics (Visible To User) [6]; Access Time - Seagate ST32151N Product Manual

Hawk 2XL Product Manual, Rev. B
4.0

Performance characteristics

4.1

Internal drive characteristics (transparent to user)

Drive Capacity
Read/Write Heads
Bytes/Track
Bytes/Surface
Tracks/Surface, Total
Tracks/Inch
Servo Heads
Internal Data Rate
Disc Rotational Speed
Average Rotational Latency
4.2

SCSI Seek performance characteristics (visible to user) [6]*

The values given in Section 4.2.1 apply to all models of the Hawk 2XL family unless otherwise specified. Refer
to Section 9.9 and to the SCSI-2 Interface Product Manual 77738479 for additional timing details.
4.2.1

Access time

Average - Typical
Max.
Single Track - Typical
Max.
Full Stroke - Typical
Max.
*[ ] All notes for Sections 4.2 are listed at end of Section 4.2.3.
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ST32151/ST32155 ST31051/ST31055
2.54 1.26
8
75,900 75,900
318 315
4176 4176
4800 4800
0 0
44 - 66 44 - 66
5411 ± 0.5% 5411 ± 0.5%
5.54 5.54
Including Controller Overhead
(without disconnect) [1] [4]
Drive Level
Read
[3] 10.4
[2] 11.9
[3] 2.7
[2] 3.8
[3] 20.4
[2] 23.9
GByte (UNF) (Rounded off values)
Bytes (Avg) (Rounded off values)
Mbytes (UNF) (Rounded off values)
Tracks (user accessible)
TPI
(embedded servo)
Mbits/sec (variable with zone)
r/min
ms
Write
ms
11.4
13.4
2.9
4.3
21.4
24.9
9