The CTRACE command specifies the cell from which trace data will be gathered.
CTRACE COMP (CELL_SHORT_NAME)where CELL_SHORT_NAME is the value specified through the Profile Management Tool or the zpmt command to identify the location of server configuration files. The name must be 8 or fewer characters and all uppercase.
You can also use the IPCS CTRACE command to merge multiple trace entities together such as multiple WebSphere Application Server for z/OS address space traces, OMVS, and TCPIP. For example code, see Sample JCL to display WebSphere for z/OS trace data.