Features for the Create Image Copy function
The Create Image Copy function supports the features summarized in the following table.
Many of the features are enabled by ICEIN control statement keywords. For a list of ICEIN control statements, see Control statement keywords for the Create Image Copy function.
| Feature | Description |
|---|---|
| Batch image copy | An IMS image copy (batch image copy) is a copy of a database or area that reflects the state of the data at a point when no updates were being made. |
| Compressed image copy | A compressed image copy has the format of database records that are compressed by one of the IMS HP Image Copy compression routines. The advantage of this format is that it reduces allocation space for output image copy. |
| Fast Recovery image copy | A Fast Recovery image copy helps you recover
database data sets quickly, reducing the total recovery time and the
time that the database is unavailable. This feature is enabled automatically according to the format of the input data set. |
| Database group processing | In database group processing, all database data groups and areas that are
registered to a change accumulation (CA) group or a database data set (DBDS) group in DBRC are
processed. For more information, see GROUP statement. |
| Dynamic allocation | IMS HP Image Copy can dynamically allocate input and output data sets, such as database data sets, image copy data sets, log data sets, and change accumulation data sets. You do not need to provide a DD statement for each data set. |
| Stacking output image copies | Places two or more image copy data sets on the same tape or on a set of tapes (stacking) to increase the tape media efficiency. |
| Detecting latest batch image copy data set | IMS HP Image Copy can detect the latest batch image copy data set that is registered to the DBRC and use it as input data set. |
| Creating physical copy and logical copy | The function supports two process types for creating image copies; physical copy and logical copy. |
| NOTIFY.IC/CHANGE.IC for missing IC record | The function can issue the NOTIFY.IC or the CHANGE.IC command to register the output data set to RECON. |
| Creating seven image copies at one time | The function can create up to seven copies of the input data set in one run. |
| Site Default Generation utility | The Site Default Generation utility of IMS HP Image Copy sets default values for controlling IMS HP Image Copy jobs. For more information, see Specifying site default values for the FABJMAIN program. |
| Central management of reports | IMS HP Image Copy supports the function of the IMS Tools KB Output repository, which enables you to store the reports that are generated by IMS HP Image Copy jobs. The use of IMS Tools KB Output repository helps you simplify management of IMS HP Image Copy reports. |
| Offloading workload to zIIP processors | IMS HP Image Copy supports the IBM® System z® Integrated Information Processor (zIIP) to offload eligible database workloads. |