>I included DNSLOOKUP NO in my dsmserv.opt file an the performance >problem is solved.
But... As the APARs indicate, it is typically the case that TSM helped identify a site configuration/service problem, which needs to be pursued, as it can affect all applications running on that system. DNS lookups should be almost instantaneous in a well configured system. (Having an unresponsive DNS server's IP address in a DNS servers list can result in a four-second failover delay before rotating to the next address in the server list.) I would urge pursuit of the underlying problem. Richard Sims http://people.bu.edu/rbs
