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Why should disk queue length above zero be used to identify bottlenecks?

Posted: Sat Jul 23, 2022 7:28 pm
by answerhappygod
Why should disk queue length above zero be used to identify bottlenecks?

A. This indicates excessive I/O and a disk bottleneck
B. This indicates excessive swap file utilization
C. This indicates insufficient RAM
D. This indicates a failed disk