Seagate ST32151N - 4 Performance Characteristics; Internal Drive Characteristics (Transparent to User); SCSI Seek Performance Characteristics (Visible to User) [6]; Access Time

Hawk 2XL Product Manual, Rev. B 9
4.0 Performance characteristics
4.1 Internal drive characteristics (transparent to user)
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
*[] All notes for Sections 4.2 are listed at end of Section 4.2.3.
ST32151/ST32155 ST31051/ST31055
Drive Capacity 2.54 1.26 GByte (UNF) (Rounded off values)
Read/Write Heads 8
Bytes/Track 75,900 75,900 Bytes (Avg) (Rounded off values)
Bytes/Surface 318 315 Mbytes (UNF) (Rounded off values)
Tracks/Surface, Total 4176 4176 Tracks (user accessible)
Tracks/Inch 4800 4800 TPI
Servo Heads 0 0 (embedded servo)
Internal Data Rate 44 - 66 44 - 66 Mbits/sec (variable with zone)
Disc Rotational Speed 5411 ± 0.5% 5411 ± 0.5% r/min
Average Rotational Latency 5.54 5.54 ms
Including Controller Overhead
(without disconnect) [1] [4]
Drive Level
Read Write
ms
Average - Typical [3] 10.4 11.4
Max. [2] 11.9 13.4
Single Track - Typical [3] 2.7 2.9
Max. [2] 3.8 4.3
Full Stroke - Typical [3] 20.4 21.4
Max. [2] 23.9 24.9
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