If a system fails approximately twice per year and takes approximately 3 hours to fix when...
If a system fails approximately twice per year and takes
approximately 3 hours to fix when it fails, what
is its MTTF, MTTR, MTBF and availability?
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If a system fails approximately twice per year and takes
approximately 3 hours to fix when...
Problema #1 ( 10 points) A system has a mean time to repar (MTTR) of 30...
Problema #1 ( 10 points) A system has a mean time to repar (MTTR) of 30 minutes, and a mean time between unscheduled maintenance actions (MTBF) of 60 hours. The intended utilization (actual hours of operation to meet the customer demand for the output) of the system is 4800 hours per year. determine 1. How many unscheduled maintenance actions are to be expected each year? 2. How many hours of unscheduled maintenance are to be expected each year 3. If...
c) Assume one of the cluster nodes fails every 100 hours. Other parts of the cluster never fail. Steps 1 through 3 take two hours. On average, the mean time for step 4 is two hours. What is the availa...
c) Assume one of the cluster nodes fails every 100 hours. Other parts of the cluster never fail. Steps 1 through 3 take two hours. On average, the mean time for step 4 is two hours. What is the availability of the cluster? What is the yearly failure cost if each one-hour downtime costs £2000? [10 marks] d) Following Part (b), assume that the cluster now has much increased availability support. Upon a node failure, its workload automatically fails over...
The guidance system of a ship is controlled by a computer that has three major modules....
The guidance system of a ship is controlled by a computer that has three major modules. In order for the computer to function properly, all three modules must function. Two of the modules have reliabilities of .87, and the other has a reliability of .97. a.What is the reliability of the computer? (Round your answer to 4 decimal places.) Reliability b. A backup computer identical to the one being used will be installed to improve overall reliability. Assuming...
3) Dublin-based Cloudenci is considering a new public cloud offering that assures a maximum time to...
3) Dublin-based Cloudenci is considering a new public cloud offering that assures a maximum time to repair (MTTR) of 600 seconds for any given failed component in its cloud infrastructure. Assuming a maximum of one failure per year: a) Calculate the annual availability without planned downtime b) If Cloudenci wants to offer a five nines SLA based on the availability, what is an acceptable MTTR assuming 1 failure per year with no planned downtime? c) Discuss one of the following...
Document1 Word ll me what you want to do A device used in a ground radar...
Document1 Word ll me what you want to do A device used in a ground radar system has age to failure that is described approximately by a Weibull distribution with characteristic life of 83 hours, shape parameter 1.5, and location parameter zero. Assume a constant failure rate. When it fails it takes on average 3.5 hours to repair 1. a. Calculate the reliability over a 25-hour period, and the steady state availability of the device. b. Calculate the reliability over...
network security and system At one millisecond per guess, it takes an attacker about 3.4 hours...
network security and system At one millisecond per guess, it takes an attacker about 3.4 hours to try all possible upper-case only passwords of length
OH Variance At the beginning of the year, your company thought . Each product would use 3 direct labor hours. . Fix...
OH Variance At the beginning of the year, your company thought . Each product would use 3 direct labor hours. . Fixed overhead would be $900,000 for the year. Fixed overhead would be applied based on machine hours and would be $2.50 per machine hour. .Variable overhead would be applied based on direct labor hours and would be $4.00 per direct labor hour e46,000 units would be produced At the end of the year, what happened that year was: 48,000...
QUESTION 2 2 points Save Afirm with a standard costing system budgets 5,000 direct labor hours at $20 per hours t...
QUESTION 2 2 points Save Afirm with a standard costing system budgets 5,000 direct labor hours at $20 per hours to make 2,000 units. The firm actually produced 2,000 units using 6,000 direct labor hours at $22 per hour. When labor occurred during the period, what was the total dollar value of the credit to wages payable? QUESTION 3 2 points Tolton, Inc. is just shy of hitting its operating income target. The manager. KT. Tolton, decides to purchase inferior...
1. A flower shop wants to offer curb-side pick-up for its products. They determined the following...
1. A flower shop wants to offer curb-side pick-up for its products. They determined the following customer requirements based on a survey: a. Large selection of flowers b. Ease of ordering C. Low cost d. Ease of pick-up Answer the following questions: 1. List at least 4 key Operational Requirements II. List Technical Performance Measures (3-4) III. Perform Functional Analysis (3 levels including top level; at least 6 blocks). Ensure proper block numbering and arrows. 2. A twin-engine plane has...
Roger and Serena, tennis consultants are spending all their time trying to fix their computer system,...
Roger and Serena, tennis consultants are spending all their time trying to fix their computer system, instead of hitting forehands with tennis clients. It is requiring service on a regular basis, and the consulting bills are adding up. They are frustrated with this, and have procured three bids for a new system. But as their skills relate more to forehands, they are confused about which to accept. They have hired the USFSP Cost 1 dass to analyze such. They think...
Problema #1 ( 10 points) A system has a mean time to repar (MTTR) of 30 minutes, and a mean time between unscheduled maintenance actions (MTBF) of 60 hours. The intended utilization (actual hours of operation to meet the customer demand for the output) of the system is 4800 hours per year. determine 1. How many unscheduled maintenance actions are to be expected each year? 2. How many hours of unscheduled maintenance are to be expected each year 3. If...
OH Variance At the beginning of the year, your company thought . Each product would use 3 direct labor hours. . Fixed overhead would be $900,000 for the year. Fixed overhead would be applied based on machine hours and would be $2.50 per machine hour. .Variable overhead would be applied based on direct labor hours and would be $4.00 per direct labor hour e46,000 units would be produced At the end of the year, what happened that year was: 48,000...
QUESTION 2 2 points Save Afirm with a standard costing system budgets 5,000 direct labor hours at $20 per hours to make 2,000 units. The firm actually produced 2,000 units using 6,000 direct labor hours at $22 per hour. When labor occurred during the period, what was the total dollar value of the credit to wages payable? QUESTION 3 2 points Tolton, Inc. is just shy of hitting its operating income target. The manager. KT. Tolton, decides to purchase inferior...
1. A flower shop wants to offer curb-side pick-up for its products. They determined the following customer requirements based on a survey: a. Large selection of flowers b. Ease of ordering C. Low cost d. Ease of pick-up Answer the following questions: 1. List at least 4 key Operational Requirements II. List Technical Performance Measures (3-4) III. Perform Functional Analysis (3 levels including top level; at least 6 blocks). Ensure proper block numbering and arrows. 2. A twin-engine plane has...
Roger and Serena, tennis consultants are spending all their time trying to fix their computer system, instead of hitting forehands with tennis clients. It is requiring service on a regular basis, and the consulting bills are adding up. They are frustrated with this, and have procured three bids for a new system. But as their skills relate more to forehands, they are confused about which to accept. They have hired the USFSP Cost 1 dass to analyze such. They think...
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