Overview

Welcome to the IAM Version User Guide. This guide is designed to explain how to use IAM Enhanced Format data sets. It is primarily a task oriented guide. For each task, general guidance and reference information is provided, along with numerous examples to aid in the understanding and use of IAM.

Related topic

IAM-Installation-Instructions

IAM Version 10.0.01 utilizes various functions and features only available in z/OS operating systems and instructions available only on processors that support z/Architecture®. The minimum requirements for IAM Version 10.0.01 are z/OS 2.3 or higher and a processor that supports the ninth edition of z/Architecture Principle of Operations (-09 level) or above. The specific processors are the z/EC12 or z/BC12 and above.

IAM support on systems that do not meet the above requirements and are using a z/Architecture machine that can support the -07 level, can use IAM Version 9.4. Machines that can support the -05 level, can use IAM Version 9.3. If only a base level z/Architecture machine is available, then you can use Version 9.1. Support is provided for systems without z/Architecture by IAM Version 8.1.

Due to quad-word alignment required with the 64-bit support, the IAM load library requires and is distributed as a PDSE with a block size of 32760. A normal PDS can be used, but modules will have to be copied to a PDSE should maintenance be necessary, and then copied back. This guide assumes that the reader has a general understanding of VSAM and the related terminology, has a working knowledge of z/OS JCL, and the Access Method Services (IDCAMS) utility program. Additionally, the reader should be familiar with the IAM Features and Capabilities as described previously in this space. The primary focus of this User Guide is on How to, as opposed to explaining each IAM or VSAM feature and concept.



 

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