HP OpenVMS I/O User’s Reference Manual: OpenVMS Version 8.4

Chapter 2 Disk Drivers

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Table of Contents

2.1 Driver Features
2.1.1 Data Check
2.1.2 Effects of a Failure During an I/O Write Operation
2.1.3 Error Recovery
2.1.4 SCSI Disk Class Driver
2.1.5 Audio Extensions to the SCSI Disk Class Driver
2.2 Disk Driver Device Information
2.3 Disk Function Codes
2.3.1 Read
2.3.2 Write
2.3.3 Sense Mode
2.3.4 Set Density
2.3.5 Search
2.3.6 Pack Acknowledge
2.3.7 Unload
2.3.8 Available
2.3.9 Seek
2.3.10 Write Check
2.3.11 Audio Extensions
2.4 I/O Status Block
2.5 Disk Driver Programming Example

This chapter describes the use of disk drivers that support the disk devices listed in the Software Product Description for the OpenVMS Operating System (SPD 82.35.xx). The chapter also includes descriptions of many of the supported disks and controllers; however, not all supported devices are described here. For the definitive list of supported devices, see Software Product Description for the OpenVMS Operating System

All disk drivers support Files-11 On-Disk Structure Level 1 and Level 2 file structures. Access to these file structures is through the DCL commands INITIALIZE and MOUNT, followed by the RMS calls described in the OpenVMS Record Management Utilities Reference Manual. Files in RT-11 format can be read or written with the file exchange facility EXCHANGE.



1.7 I/O Status Block
  		 


2.1 Driver Features