Functional changes

The following enhancements are major functional changes that are introduced in IMS HP Image Copy 4.2. You must apply the latest APARs to use these new functions.

IMS-managed ACBs support

The Image Copy function and the Recovery function can run in an IMS environment where the IMS management of ACBs is enabled.

HASH pointer check support for Fast Recovery image copies

You can use the HASH pointer check function to check the database pointers while creating Fast Recovery image copies with the FASTIC=(,COPY) processing. For more information, see Considerations for using Advanced Image Copy Services.

Checkpoint Restart enhancement for stacking image copies

The Checkpoint Restart function is enhanced to provide more granular control over the restart processing when stacking image copies. You can use the RSTTYPE_STK keyword to select the type of restart processing. For more information, see RSTTYPE_STK keyword.

zIIP processor support

You can use the ZIIPMODE keyword to use zIIP processors to offload CPU workload for IMS HP Image Copy jobs.

For a description of the zIIP processor support and how to enable the zIIP processors, see the following topics:

• For the FABJMAIN program, see Offload workload to zIIP processors and ZIIPMODE keyword.
• For IMS compatible JCL, see Offload workload to zIIP processors and Invoking the Image Copy function through stand-alone DFSUDMP0.

Conditional image copy registration for the Image Copy function

You can use the NOTIFYMODE keyword to select the image copies that are to be registered to DBRC RECON. By using this keyword, you can avoid registering failed image copies such as image copies with pointer errors or image copies that are to be reprocessed by the Checkpoint Restart function. For more information, see NOTIFYMODE keyword.

New FASTIC mode using FlashCopy® or SnapShot Copy to reduce unavailable time of databases

You can shorten the unavailable time of the database when taking image copies, by using the new FASTIC mode that is enabled with the FASTIC=(,FDUMP) keyword. For more information, see Using Advanced Image Copy Services with the Image Copy function and FASTIC keyword.

Database quiesce support for IMS 11.1 and later

By using the TOIAUTO_Q keyword, you can take batch image copies of online databases without taking the databases offline. For how to enable this support, see TOIAUTO_Q keyword.

Sensor data collection support

You can schedule Integrated DB Sensor to collect sensor data in the Image Copy function.

DB Sensor collects statistics of IMS databases and stores the data in a central repository that is provided by IMS Tools Knowledge Base. The stored data can be used by Autonomics Director, Policy Services, and IMS Administration Foundation for database analysis and tuning purposes. For more information, see Collect sensor data with Integrated DB Sensor and SENSOR keyword.

Site Default Generation utility for IMS compatible JCL

The Site Default Generation utility can generate the site default table for use with IMS compatible JCL streams.

The Site Default Generation utility creates a user site default table for the optional processing parameters. You can set default values and have them applied when you run IMS HP Image Copy functions with IMS compatible JCL. For more information, see Setting default values (IMS compatible JCL).

IMS /START command support

IMS HP Image Copy can issue, through the IMS Tools Online System Interface, the /START command to start the offline database, partition, or area. With this option, you can start IMS applications immediately after the database is initialized or reorganized. For more information, see TOIAUTO_STA keyword.