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D-ISM-FN-01 · Question #472

A Fibre Channel switch has eight ports and all ports must be operational from 6 AM to 6 PM, Monday through Friday. However, a failure of Port 4 occurs with the week as follows: - Monday= 11 AM to 1…

The correct answer is B. 86.7%. See the full explanation below for the reasoning.

Storage System Environment

Question

A Fibre Channel switch has eight ports and all ports must be operational from 6 AM to 6 PM, Monday through Friday. However, a failure of Port 4 occurs with the week as follows:

  • Monday= 11 AM to 1 PM
  • Wednesday= 5 PM to 10 PM
  • Thursday= 7 AM to 10 AM
  • Saturday= 11 AM to 1 PM

What is the availability of Port 4 in that week?

Options

  • A80%
  • B86.7%
  • C90%
  • D81 6%

How the community answered

(58 responses)
  • A
    5% (3)
  • B
    79% (46)
  • C
    3% (2)
  • D
    12% (7)

Topics

#availability calculation#port uptime#SLA metrics#Fibre Channel

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