AUDIENCE:   System Administrators, kernel developers, system tuners and application programmers who require to monitor processes in detail on live systems. PREREQUISITES:   A good understanding of Sun's Solaris Operating system, ideally to System Administration level. DURATION:   2 days. Hands on. OBJECTIVES:   Solaris Dynamic Tracing, DTrace, is a new powerful feature introduced to Solaris 10. It is intended for use by System Administrators, System Tuning personnel, kernel developers and application programmers. DTrace makes use of numerous built-in probes which can record arbitrary data from the system, trace processes on live systems, monitor kernel and application processes, all with minimal performance loss and totally programmable by the user. COURSE CONTENT:   Introducing DTrace Features, architecture, probes and D Scripts Using DTrace DTrace performance monitoring, aggregations, D variables, arrays, built-in macros Debugging applications The pid provider, application variables, transient errors, file access. Debugging system problems Accessing Kernel Symbols, Kernel variables and data structures, lock contention info, monitoring read calls, anonymous tracing, speculative tracing, DTrace privileges. Troubleshooting DTrace Minimising performance impact, DTrace buffers, debugging DTrace scripts. NT07/01