To further improve your archive and retrieval performance, use the dynamic retrieval function within BRMS. This function allows the retrieval of the file members that have been archived and now need to be accessed again.
To accomplish this, change your archive control group such that the requested archive operation keeps the object descriptions. This is known as save with storage free. To do this, change the retain object description parameter on either the archive control group options or the archive policy to *YES.
You must set up your BRMS retrieval policy with the appropriate retrieval modes (*VERIFY, *NOTIFY, *DELAY, or *SBMJOB), preferred devices, restore options, and authorities. The Hierarchical Storage Management book contains more information about these modes.