Table Of Contents
1.0 General................................................................................................................1
1.1 Introduction..............................................................................................1
1.2 References................................................................................................1
1.3 Abbreviations...........................................................................................1
1.4 Caution.....................................................................................................3
2.0 General features of the drive ............................................................................5
3.0 Fixed-disk subsystem description.....................................................................9
3.1 Control electronics...................................................................................9
3.2 Head disk assembly ................................................................................9
3.3 Actuator ...................................................................................................9
4.0 Drive characteristics..........................................................................................11
4.1 Default logical drive parameters..............................................................11
4.2 Data sheet.................................................................................................11
4.3 World Wide Name Assignment...............................................................12
4.4 Drive organization ...................................................................................13
4.4.1 Drive format....................................................................................13
4.4.2 Cylinder allocation..........................................................................13
4.5 Performance characteristics.....................................................................15
4.5.1 Command overhead........................................................................15
4.5.2 Mechanical positioning...................................................................15
4.5.3 Drive ready time .............................................................................17
4.5.4 Data transfer speed..........................................................................18
4.5.5 Throughput......................................................................................19
4.5.6 Operating modes.............................................................................20
5.0 Defect flagging strategy.....................................................................................21
6.0 Electrical interface specification.......................................................................23
6.1 Connector location...................................................................................23
6.1.1 DC power connector.......................................................................24
6.1.2 AT signal connector........................................................................24
6.2 Signal definitions(PATA model).............................................................25
6.3 Signal descriptions...................................................................................26
6.4 Interface logic signal levels(PATA model) .............................................29
6.5 Signal definition (SATA model)..............................................................29
6.5.1 TX+ / TX-.......................................................................................30
6.5.2 RX+ / RX-.......................................................................................30
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