BRMS interface differences
You can manage backups, recovery operations, and your media with BRMS by using either the BRMS graphical interface or the character-based interface.
If you have used the character-based interface in the past and want to use the BRMS graphical interface, you need to be aware of the differences between these interfaces.
Terminology differences
The following table describes the different terminology that exists in each interface and the definitions of these terms.
| BRMS graphical interface | Character-based interface | Definition |
|---|---|---|
| Changes-only save | Nonincremental cumulative backup | Saves only those items that have changed since the last full save was performed. |
| Media pool | Media class | A grouping of media based on similar characteristics, such as density and capacity. |
| Disk pool | Auxiliary storage pool | A software-defined group of disk storage units on a system. |
| Disk pool group | Auxiliary storage pool class | A group of disk pools that are organized by similar purpose. |
| Container pool | Container class | A grouping of similar types of containers that hold similar media volumes. |
Compatibility differences
If you are currently using the character-based interface control groups and they do not refer to the system policy (*SYSPCY), archive policy (*ARCPCY), or backup policy (*BKUPCY), then using the BRMS graphical interface should have no functional effect on your character-based control groups. If this is not true, read the following information.
The backup and archive control groups created by the BRMS graphical interface can be viewed and run from the character-based interface. Also, control groups that are created from the character-based interface can be viewed and edited through the BRMS graphical interface backup and archive control group properties. A message is presented to the user when a control group that is created or edited using the character-based interface is about to be changed by the BRMS graphical interface; the user can then cancel the operation or continue. However, changing control groups created on the character-based interface using the BRMS graphical interface is not recommended unless you understand the following:
- The BRMS graphical interface backup and archive control groups are designed to be independent of each other. Thus, if you make changes to one control group, it does not affect the others. To ensure this independence, control groups that are updated with the BRMS graphical interface will have all references to the character-based interface system policy (*SYSPCY), archive policy (*ARCPCY), and backup policy (*BKUPCY) removed. These references are resolved and replaced with the actual values when the backup control group is saved by the BRMS graphical interface. Changes to the archive policy, backup policy, or system policy in the character-based interface do not affect backup or archive control groups that are created or edited by the BRMS graphical interface. The exceptions to this are the network function, sign-off exceptions, and the subsystem to check controls in the system policy, which are used by the BRMS graphical interface.
- Changes made to other, non-IBM supplied policies are reflected in the BRMS graphical interface.
