Activating Storage Management Subsystem configurations

You can activate an SMS configuration manually, or automatically at IPL. This topic shows you how to perform the initial activation of an SMS configuration using a four-step manual approach. It also explains how you can activate an SMS configuration automatically at IPLs. In addition, it explains how you can change individual SMS parameters with the SETSMS operator command.

Prerequisite: When you activate an SMS configuration, ensure that all of the DASD volumes that belong to the configuration are initialized as SMS volumes. Otherwise, attempted allocations to an improperly initialized volume will fail. However, initialization for tape volumes is no different for SMS-managed and non-SMS-managed volumes.