Deskstar 7K400 Hard Disk Drive Specification
6.8.2 Host Pausing Read DMA................................................................36
6.8.3 Host Terminating Read DMA.........................................................37
6.8.4 Device Terminating Read DMA.....................................................38
6.8.5 Initiating Write DMA .....................................................................39
6.8.6 Device Pausing Write DMA ...........................................................40
6.8.7 Device Terminating Write DMA ....................................................41
6.8.8 Host Terminating Write DMA........................................................42
6.9 Addressing of registers ...........................................................................43
6.9.1 Cabling............................................................................................43
7.0 Jumper Settings................................................................................................45
7.1 Connector location ..................................................................................45
7.1.1 Jumper pin identification ................................................................45
7.1.2 Jumper pin assignment....................................................................46
7.1.3 Jumper positions .............................................................................46
7.2 Environment............................................................................................50
7.2.1 Temperature and humidity..............................................................50
7.2.2 Corrosion test ..................................................................................51
7.3 DC power requirements ..........................................................................51
7.3.1 Input voltage ...................................................................................51
7.3.2 Power supply current (typical)........................................................51
7.3.3 Power supply generated ripple at drive power connector...............52
7.4 Reliability................................................................................................53
7.4.1 Data integrity ..................................................................................53
7.4.2 Cable noise interference..................................................................53
7.4.3 Start/stop cycles ..............................................................................53
7.4.4 Preventive maintenance ..................................................................53
7.4.5 Data reliability ................................................................................53
7.4.6 Required power-off sequence .........................................................53
7.5 Mechanical specifications.......................................................................54
7.5.1 Physical dimensions and weight .....................................................54
7.5.2 Mounting hole locations .................................................................55
7.5.3 Connector locations ........................................................................56
7.5.4 Drive mounting ...............................................................................57
7.5.5 Heads unload and actuator lock ......................................................57
7.6 Vibration and shock ................................................................................58
7.6.1 Operating vibration .........................................................................58
7.6.2 Nonoperating vibration ...................................................................58
7.6.3 Operating shock ..............................................................................59
7.6.4 Nonoperating shock ........................................................................59
7.6.5 Nonoperating rotational shock........................................................60
7.7 Acoustics.................................................................................................61
7.8 Identification labels.................................................................................61
7.9 Safety ......................................................................................................62
7.9.1 UL and CSA standard conformity ..................................................62
7.9.2 German safety mark........................................................................62
7.9.3 Flammability ...................................................................................62
Summary of Contents for Deskstar 7K400
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