IBM SY31-0458-3 Section 13 62PC Disk free download

File name SY31-0458-3_Section_13_62PC_Disk.pdf

Contents 62PC DISK DRIVE AND ATTACHMENT . . 13-1 Diagnostic Operations. . . . . . . 13-19 Control Storage Initial Program Load. . 13-56 INTRODUCTION 13-1 Load Seek Required Address Direct 13-19 Common Adapter Initiation Program 62PC Disk Drive . 13-1 Load Seek Control Direct 13-19 Load Operation 13-56 Grounding . . 13-1 Sense File Direct . . . . . . . . 13-19 Command Bus In . . . . . . . 13-58 Subframe 13-1 Sense File Diagnostic Sense Bytes COMMANDS . . . . . . . . . 13-60 Disk Enclosure and Spindle Brake . 13-1 1, 2, and 3 . . . . . . . . . . 13-19 I/O Load Command-I/O Control Actuator Lock 13-1 Sense File Diagnostic Sense Bytes Load Command 13-60 Drive Motor Assembly 13-1 1, 2, and 3 256 Sample Test 13-19 I/O Sense Command-I/O Control Attachment . . . 13-1 Sense File Diagnostic Wrap 13-19 Sense Command . . . . . . . 13-62 Circuit Locations . 13-2 Disk Speed Timing Diagnostic 13-19 Sense Interrupt Level Status Byte DISK FORMAT 13-3 Timed Seek Diagnostic 13-19 Command . . . . . . . . . . 13-63 Cylinders . . . 13-3 Read Data with Data Repeat . 13-19 Jump on I/O Condition Command. 13-64 Tracks . . . . 13-3 Read Common Adapter Buffer Storage 13-19 Common Adapter Commands . . . 13-65 Servo Track 13-3 Common Adapter File Control Block . . . 13-20 Common Adapter Command Descriptions 13-69 Data Track . 13-3 Loading and Sensing the Common Adapter ERROR CONDITIONS . . . . 13-70 Guard Band 13-3 File Control Block. . . . . . . . . 13-24 Channel Adapter Sensed Errors . 13-71 Landing Zone. 13-3 Loading the Common Adapter File Disk Drive Sensed Errors . . . . 13-72 Sectors . . . . . 13-4 Control Block . . . . . . . . . 13-24 Common Adapter Sensed Errors 13-73 Data Recording . 13-6 Sensing the Common Adapter File INPUT/OUTPUT LINES 13-78 Reading and Writing Data 13-6 Control Block . . . 13-24 Lines