S2000-025: IBM AIX v7.3 Administrator SpecialtyDemo

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QuestionQ23

Performance Management and Tuning

The iostat -D report provides more detail than the default iostat disk information.

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Which two (2) field descriptions are correct?

Choose two
  • A tps: The number of transfers per second that were issued to the physical disk/tape
  • B sqfull: How many times the service queue became full in the last hour
  • C avgtime: The average time that is spent by a transfer request in the wait queue
  • D avgserv: The average number of elements waiting in the service queue per second
  • E avgwqsz: The average wait queue size in bytes
Explanation

In the extended AIX iostat -D drive report, tps is the number of transfers per second issued to a physical disk or tape, and avgtime is the average time a transfer request spends in the wait queue. sqfull is a per-second rate, while avgserv measures service time and avgwqsz measures average wait-queue size.

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