Establishing RMGR groups
You initiate RMGR functions against a group that consists of objects.
When you establish a group, you select the objects to include in the group and the RMGR processing options to use for the group. For more information, see Working-with-groups-and-objects.
To establish RMGR groups for DR, perform the following steps:
- Evaluate possible groups, and select one that is appropriate for your needs.Because a DR situation typically has different needs from an application recovery situation, you may want to create one or more groups especially with DR in mind. Here are some approaches:
- You could create a connecting group that contains all elemental groups that must be recovered at the DR site. This approach provides ease of recovery because it requires only one execution of the Create Recovery JCL function (as an option, you can create a JCL member for each elemental group; each member can contain one or more jobs).
- You could create a group corresponding to each change accumulation group that must be recovered at the DR site. This approach makes it easier to run change accumulation at the DR site. It also makes it easier to recover to a change accumulation (CA) recovery time that is provided by the RECON Cleanup utility. You can use the Group Build batch utility to build these groups.
- You could create a group for each application and recover the groups in order of application priority. For example, your organization may need to get the order processing application running right away, while the payroll application can wait until the end of the pay period. This approach provides flexibility, in that you can use a different profile for each group. It also allows you to run the Create Recovery JCL function concurrently to maximize use of available resources.
- If you have the BMC Index Rebuild function for full-function databases, you can include the full-function database indexes in a group with the databases to have the indexes rebuilt in the same job as the databases. Or you can include all indexes in a separate group from the databases to rebuild the indexes later in a stand-alone process.
- If you have the BMC Index Rebuild function for DEDBs, you can include the Fast Path indexes in a group with the DEDBs to have the indexes rebuilt in the same job as the DEDBs. Or you can include all indexes in a separate group from the DEDBs to rebuild the indexes later in a stand-alone process.
- Create (and populate) the group or groups as needed.For information about creating a group with the RMGR ISPF interface, see Manage-groups-with-the-ISPF-interface. For information about creating a group with the Group Build utility, see Manage-groups-with-the-Group-Build-utility.
Make sure to specify the appropriate value in the Rebuild indexes field. - Validate DR groups regularly.To ensure that the groups you have created contain all objects that need to be recovered, set up regularly scheduled jobs to validate the groups and rebuild them if necessary. For information about batch validation of groups, see Validate-and-rebuild-groups.
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