Image copy record (IMAGE)

An IMAGE record contains information about an image copy data set and can be either available or in-use.

An available IMAGE record is created by an INIT.IC command. It describes data sets that are to be used for output from a subsequent run of an image copy utility. You can create available IMAGE records only for those DBDSs that are defined with the REUSE parameter.

An in-use IMAGE record is created by an execution of an image copy utility:

• If the DBDS or area is defined with REUSE, it is a formerly available IMAGE record or a reused in-use record.
• If the DBDS or area is defined with NOREUSE, it is a new record with the data set description that is obtained from the JCL.

In addition to the data set description, the in-use IMAGE record identifies the type of copy operation and contains the copy operation's run time and, depending on the type of copy, the copy operation's stop time.

If you request that the image copy utility create an image copy data set and a duplicate image copy data set, DBRC records information about both in the same image copy record. The first record is designated IC1, and the duplicate is designated IC2.

If you create a nonstandard image copy data set (one that the image copy utility did not create), you must use a NOTIFY.UIC command to record its existence in the RECON data set.

A nonstandard image copy, also known as a user image copy, is created automatically for each area altered by the Fast Path DEDB Alter utility. This is done by using the shadow image copy data set (IDS).

Related Command: See Image copy utilities (DFSUDMP0, DFSUDMT0, DFSUICP0) for more information on the IMAGE COPY record.