Seagate ST32430N Product Manual - Page 16

8 Product Manual - Hawk 2LP Family SCSI-2 (Volume 1), Rev. A 5.0 Performance characteristics 5.1 Internal drive characteristics (transparent to user) ST32430N/ND ST31230N/ND Drive Capacity 2.59 1.28 GByte (UNF)* Read/Write Heads 9 5 Bytes/Track 72000 64242 Bytes (Avg)* Bytes/Surface 287.7 255.6 Mbytes (UNF) Tracks/Surface, Total 3992 3992 Tracks (user accessible) Tracks/Inch 4200 4200 TPI Servo Heads 1 1 Internal Data Rate 35.8 - 62.2 33.9 - 56.7 ..... Mbits/sec (variable with zone) Disc Rotational Speed 5411+ 0.5 5411 +0.5% ... r/min Average Rotational Latency 5.54 5.54 ms *Rounded off values. 5.2 SCSI Seek, Read and Write performance characteristics (visible to user) [8]* The values given in section 5.2 apply to all models of the Hawk 2LP family unless otherwise specified. Refer to Section 11.7 and to the SCSI-2 Interface Product Manual 77738479 for additional timing details. 5.2.1 Access time Including Controller Overhead (without disconnect) [1] [4] Average - Typical [3] Max. [2] Drive Level Read ms 10.4 11.9 Write 11.4 13.4 Single Track - Typical [3] Max. [2] 2.1 2.5 3.8 4.3 Full Stroke - Typical [3] Max. [2] 20.4 21.4 23.9 24.9 *[ ] All notes for Sections 5.2 and 5.3 are listed in Section 5.3.1.