Engineering, 08.12.2021 14:00 kayleedavis08

A data storage system consists of 3 disk drives sharing a common queue. An average of 53 storage requests arrive per second. The average time to service a request is 0.03 seconds. Assume that arrivals are poisson distributed and that service times are exponentially distributed. a. What is the probability that a given disk drive is busy?
b. What is the probability that no disk drives are busy?
c. What is the probability that a storage request will have to wait?
d. What is the average number of storage requests present in the system?

Answers: 2

Show answers

Another question on Engineering

Engineering, 04.07.2019 18:10

Adouble-strand no. 60 roller chain is used to transmit power between a 13-tooth driving sprocket rotating at 300 rev/min and a 52-tooth driven sprocket. a) what is the allowable horsepower of this drive? b) estimate the center-to-center distance if the chain length is 82 pitches. c) estimate the torque and bending force on the driving shaft by the chain if the actual horsepower transmitted is 30 percent less than the corrected (allowable) power.

Answers: 3

Answer

Engineering, 04.07.2019 18:10

Which of the following components of a pid controlled accumulates the error over time and responds to system error after the error has been accumulated? a)- proportional b)- derivative c)- integral d)- on/off.

Answers: 2

Answer

Engineering, 04.07.2019 18:10

A-mn has a cubic structure with a0 0.8931 nm and a density of 7.47 g/cm3. b-mn has a different cubic structure, with a0 0.6326 nm and a density of 7.26 g/cm3. the atomic weight of manganese is 54.938 g/mol and the atomic radius is 0.112 nm. determine the percent volume change that would occur if a-mn transforms to b-mn.

Answers: 2

Answer

Engineering, 04.07.2019 18:10

Condition monitoring is a major component of. (clo4) a)- predictive maintenance. b)-preventive maintenance c)-proactive maintenance d)-reactive maintenance.

Answers: 1

Answer

You know the right answer?

A data storage system consists of 3 disk drives sharing a common queue. An average of 53 storage req...

Questions