DBCTL data returned to IMS log

In addition to the information returned to the monitor, IMS writes monitoring information to the log records. This information is always recorded; you do not have to request it.

For further information about the data returned to the monitor see IMS monitor reports with DBCTL.

IMS appends the following information to the X'08' log records during scheduling.

Total elapsed wait time due to intent conflict
Total elapsed wait time due to pool space not being available
Total elapsed time for a schedule request

IMS appends the following information to the X'07' log records at PSB termination:

Total number of databases used involved in I/O
Total number of DL/I database requests
Total elapsed wait time due to databases involved in I/O
Total elapsed wait time due to locking
Total number of gets
Total number of inserts
Total number of replace
Total number of deletes

Program isolation trace

For full function DL/I databases, you can use the program isolation (PI) trace to get records that indicate queueing activity taking place for program isolation. The PI trace records are written to the IMS log. You can then print them using the IMS file select and formatting utility. See IMS administration in IMS product documentation for further guidance on using PI trace.