Running image capture online

When you run the image capture program online, the trace output goes to the IMS log data set. To run the image capture program online, you issue the IMS TRACE command from the IMS master terminal.

If you trace a BMP or an MPP and you want to use the trace results with DFSDDLT0, the BMP or MPP must have exclusive write access to the databases it processes. If the application program does not have exclusive access, the results of DFSDDLT0 may differ from the results of the application program. When you trace a BMP that accesses GSAM databases, you must include an //IMSERR DD statement to get a formatted dump of the GSAM control blocks.

The following diagram shows the TRACE command format:

Figure 0.
Read syntax diagramSkip visual syntax diagram ⁄ TRACE SET ONOFF PSB psbname NOCOMPCOMP
SET ON|OFF
Turns the trace on or off.
PSB psbname
Specifies the name of the PSB you want to trace. You can trace more than one PSB at the same time by issuing a separate TRACE command for each PSB.
COMP|NOCOMP
Specifies whether you want the image capture program to produce data and PCB compare statements to be used as input to DFSDDLT0.