IMS Recovery Expert (one-time setup)
The one-time setup steps are performed only once and can be changed at any time. In one-time setup, the user:
- Registers IMS systems
- Analyzes the IMS configuration
- Defines the system backup profile
- Defines the application profile
- Defines the DR profile
The first step is to register the IMS systems. The IMS system setup should be done for all IMS systems you plan to use with the IMS Recovery Expert product. If your IMS systems are members of a data sharing group, you must enter information for each member of the group individually on the IMS Recovery Expert setup screens. Here, we walk through the register IMS systems, parameters for IMS subsystem, and update datasets screens. The Update datasets screen allows you to include non-database data sets or exclude certain IMS data sets from your backups.
The second step is to analyze the IMS environments to discover the data sets and user catalogs that make up your IMS environment to ensure that your IMS environment is properly configured to allow the types of recoveries that could be performed. We enter option 5 from the main menu of IMS Recovery Expert to flow to the System Analysis and Configuration screens that display the results of the analysis. The information from analyzing your IMS system is then used when defining the backup profiles. Backup profiles are used to define how the backups are created. In the demo, we only define one backup profile for an IMS subsystem, but a user can have many backup profiles depending on the backup and recovery requirements for an IMS environment or certain applications.
The third step is to define the System Backup profile, which pertains to the backup of entire IMS system. The demo shows how the system backup profile is created, how to update the target volume information, and how to update the offload options. The backup profile defined is an auto-mapping backup profile, so target pools are also defined on the Target Pool Selection screen. The System Backup profile also defines the offload characteristics used to maintain multiple generations of an SLB or when the SLB needs to be sent off-site for DR. For new system backup profiles, IMS Recovery Expert requires a setup job to be run against the system backup profile before it can be used to create an SLB. The setup job validates that the target volumes specified are sufficient and have the proper size for creating an SLB.
The fourth step is to define the local application recovery profile. The databases listed for local recovery can be listed individually, as indices, or as DBRC groups. Here, we use the recovery group RECG1. This group can be "exploded" to see the individual databases in the recovery group. There are many recovery options that can be updated in this profile. For example, the user needs to specify the recovery utility that will be used along with information on an index builder utility, change accumulation utility, image copy utility, and HALDB utilities. Once recovery options are selected, the recovery job is created so it is available when it needs to be run. Our recovery job is called RECOVERY.
The final step is to define the DR profile. A DR profile is used to specify recovery assets to be sent to a remote site and the recovery options to be used at the remote site. The DRESTART job that creates the remote PDS data set with the IMS Recovery Expert Repository and recovery JCL is also created.
Figure 1. IMS Recovery Expert one-time setup steps (primary site activity)