Seagate HAWK 4, Product Manual

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8 Product Manual - Hawk 4 Family SCSI-2 (Volume 1), Rev. F
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5.0 Performance characteristics
5.1 Internal drive characteristics (transparent to user)
Drive Capacity 5170 MByte (UNF)
Read/Write Heads 19
Bytes/Track 68155 Bytes (UNF, Avg)
Bytes/Surface 272 Mbytes (UNF)
Tracks/Surface, Total 3992 Tracks (user accessible)
Tracks/Inch 4200 TPI
Servo Heads 1 1
Internal Data Rate 33.9 to 61.0 Mbits/sec (variable with zone)
Disc Rotational Speed 5411 +0.5% r/min
Average Rotational Latency 5.54 ms
5.2 SCSI Seek, Read and Write performance characteristics (visible to user) [8]*
Refer to Section 11.7 and to the SCSI-2 Interface Product Manual 77738479 for additional timing details.
5.2.1 Access time
Includes Controller Overhead
with no Disconnects [1] [4]
Read Write
ms
Average - Typical [3] 10.4 11.4
Max. [2] 11.9 13.4
Single Track - Typical [3] 2.1 2.5
Max. [2] 3.8 4.3
Full Stroke - Typical [3] 20.6 21.4
Max. [2] 23.9 24.9
*[ ] All notes are listed in section 5.3.1.