How does DFSMSrmm manage these libraries and locations?
DFSMSrmm records the complete inventory of the removable media library and storage locations in the DFSMSrmm control data set, which is a VSAM key-sequenced data set. DFSMSrmm records all changes made to the inventory, such as adding or deleting volumes, and also keeps track of all movement between libraries and storage locations.
DFSMSrmm manages the movement of volumes among all library types and storage locations. This lets you control where a volume, and hence a data set, resides and how long it is retained.
DFSMSrmm helps you manage the movement of your volumes and retention
of your data over their full life, from initial use to the time they
are retired from service. Among the functions DFSMSrmm performs for
you are:
- Automatically initializing and erasing volumes.
- Recording information about volumes and data sets as they are used.
- Expiring volumes based on controls you define.
- Identifying volumes with high error levels that require replacement.
To use all of the DFSMSrmm functions, you specify installation setup options and define retention and movement policies. DFSMSrmm provides you with utilities to implement the policies you define.