Learn the correct z/OS command to view CPU status on an IBM mainframe. Discover the difference between D M=CPU and D CPU, and understand which one to use.
Table of Contents
Question
Which of the below command displaysthe CPU status
A. D M=CPU
B. D CPU
C. Both A & B
D. None
Answer
A. D M=CPU
Explanation
The z/OS command “D M=CPU” is used to display the current status of the CPU(s) in a mainframe system. This command provides detailed information about each CPU, including:
- CPU ID and state (online or offline)
- CPU usage percentages
- Number of active tasks
- Number of ready tasks in memory
- And more
On the other hand, “D CPU” is not a valid z/OS command. It will result in an error message if entered in the system.
Therefore, option C “Both A & B” is incorrect since only one of the commands is valid. Option D “None” is also incorrect as “D M=CPU” is indeed the command that displays the CPU status.
In summary, to view the current CPU status in a mainframe environment running z/OS, the correct command to use is “D M=CPU”. This command provides valuable insights into the system’s CPU utilization and performance.
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