AJR : How long does it take to implement SYSB-AJR?

How long does it take to implement SYSB-AJR?

The installation process usually takes 2 to 4 hours. Once SYSB-AJR is installed, you can start implementing recovery one batch step at a time. To do this, you simply update control records via a web interface to tell SYSB-AJR which batch steps and files you want to be managed. H&W can help you quickly configure the control records or review your current deployment for optimal usage.

AJR : How does SYSB-AJR get control of the batch job step?

How does SYSB-AJR get control of the batch job step?

The operating system gives SYSB-AJR control of a batch step if the operating system finds the SUBSYS=SYSB parameter on a DD statement. One way to add this parameter to a DD statement is by implementing a JES2 exit 6 that HW provides. This exit uses the SYSB-AJR control file to match jobname, job step, proc step, program, and DD name to determine which DD statements get the parameter. Another way is to modify the JCL and add SUBSYS=SYSB to the DD statement manually.

AJR : How much storage does the SYSB-AJR journal require?

How much storage does the SYSB-AJR journal require?

If you’re journaling changes to VSAM KSDS files, then SYSB-AJR only journals the information that has changed and would be needed to recover to the before image. If you’re journaling changes to a VSAM RLS nonrecoverable file, then SYSB-AJR journals the entire before image. This process ensures full data integrity during recovery because other tasks could modify a nonrecoverable VSAM RLS data set.

The amount of information a journal can hold depends on several factors such as file type, record size, and the number of changes the batch step or steps (in multistep recovery) update. To optimize your journaling, H&W can help you specify a size adequate for your needs. You can also analyze trends and support growing workloads using the statistics that SYSB-AJR writes to your job logs.

AJR : Does SYSB-AJR support VSAM RLS files?

Does SYSB-AJR support VSAM RLS files?

If you’ve defined your VSAM files as nonrecoverable and they’re opened in RLS mode, then SYSB-AJR can provide journaling and recovery processing for them. If you’ve defined your RLS VSAM files as recoverable, you either need to quiesce the files to SMSVSAM or use a different H&W product, SYSB-II, which enables you to keep the files online to CICS during batch processing. SYSB-II supports the same journaling and recovery processing as SYSB-AJR.

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