Seagate ST32430N, Product Manual

Page: 16 / 68

8 Product Manual - Hawk 2LP Family SCSI-2 (Volume 1), Rev. F
_____________________________________________________________________________________
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]
Drive Level
Read
Write
ms
Average
-
Typical
[3]
10.4
11.4
Max. [2] 11.9 13.4
Single Track - Typical [3] 2.1 2.5