Performance Characteristics; Internal Drive Characteristics (Transparent To User); Scsi Seek Performance Characteristics (Visible To User) [6]; Access Time - Seagate ST32151W 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 -
Single Track -
Full Stroke -
*[ ] All notes for Sections 4.2 are listed at end of Section 4.2.3.
ST32151/ST32155
2.54
8
75,900
318
4176
4800
0
44 - 66
5411 ± 0.5%
5.54
Typical [3]
Max. [2]
Typical [3]
Max. [2]
Typical [3]
Max. [2]
ST31051/ST31055
1.26 GByte (UNF) (Rounded off values)
75,900 Bytes (Avg) (Rounded off values)
315 Mbytes (UNF) (Rounded off values)
4176 Tracks (user accessible)
4800 TPI
0 (embedded servo)
44 - 66 Mbits/sec (variable with zone)
5411 ± 0.5%
r/min
5.54 ms
Including Controller Overhead
(without disconnect) [1] [4]
Drive Level
Read Write
ms
10.4 11.4
11.9 13.4
2.7 2.9
3.8 4.3
20.4 21.4
23.9 24.9
9