JCL and control statements

The following topics describe the inputs that are required for an IMS DEDB Fast Recovery job.

Input to and output from IMS DEDB Fast Recovery
IMS DEDB Fast Recovery uses IMS resources that are required to recover data entry databases (DEDBs) as job input. When IMS DEDB Fast Recovery recovers DEDBs, it generates information about recovered DEDBs and other information that is needed for IMS cold start as job output.
JCL requirements
IMS DEDB Fast Recovery provides easy procedures for setting up and running a job. Consider preparing the JCL ahead of time. IMS DEDB Fast Recovery runs as an MVS™ batch job.
How log data sets are allocated
IMS DEDB Fast Recovery allocates the log data sets from the DD statements that are specified in the execution JCL. If the DD statements are not coded, IMS DEDB Fast Recovery dynamically allocates the log data sets.
Resync control statement
Resync control statements are used by IMS DEDB Fast Recovery to process the in-doubt transactions in the sync point process.
Area Recovery Retry control statement
Area Recovery Retry control statements are used by IMS DEDB Fast Recovery to recover areas selectively without affecting other areas.
Skeleton JCL for generating MSDB Dump Recovery utility JCL
IMS DEDB Fast Recovery generates DD statements for the MSDB Dump Recovery utility from the skeleton input. The output can be used as a part of JCL for the MSDB Dump Recovery utility.
Skeleton JCL for generating DBRC commands
IMS DEDB Fast Recovery generates DBRC commands for creating backout records from the skeleton input. You can use the output for submitting DBRC commands.
JCL examples
You can use sample JCL statements to prepare your IMS DEDB Fast Recovery JCL statements.