Learn the correct z/OS command to display Sysplex contention information. The D GRS,C command shows details on global resource serialization contention in a Sysplex environment.
Table of Contents
Question
How do you display Sysplex contention info?
A. D sysplex,C
B. D GRS,C
C. D C
D. D CF
Answer
To display Sysplex contention information on an IBM z/OS mainframe system, you use the command:
B. D GRS,C
Explanation
This “Display GRS” command with the “,C” contention option shows information about global resource serialization (GRS) contention in a Sysplex environment.
GRS is a component that coordinates access to shared resources across systems in a Sysplex. The D GRS,C command displays details on any ENQ or latch contention managed by GRS, including:
- Name and scope of the resource in contention
- Systems and jobs involved in the contention
- Amount of time the contention has persisted
- Whether the contention is delaying any jobs
This information helps identify resources experiencing contention so you can investigate and resolve any problems impacting system performance or availability. The other command options listed would not display the relevant Sysplex-wide contention details provided by D GRS,C.
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