This example shows how to start the OCLAs on the system.

  The following commands load the OCLA Execlet, enable the OCLAs
  on each CPU in the system, and start each OCLA. At this point,
  the EV7 OCLAs are collecting data for each PC instruction
  executed by the active CPUs in the system.

  In the unlikely event of a system failure, PC values recorded by
  the OCLAs are stored in the system dump file and can later be
  retrieved by using the System Dump Analyzer (SDA).

  SDA> OCLA LOAD
  OCLA$PCTRACE load status = 00000001

  SDA> OCLA ENABLE/RESET
  OCLA PC tracing enabled for 8 CPUs

  SDA> OCLA START
  OCLA PC tracing started for 8 CPUs