How is downtime availability calculated?
How is downtime availability calculated?
Availability = Uptime ÷ (Uptime + downtime) That asset ran for 200 hours in a single month. That asset also had two hours of unplanned downtime because of a breakdown, and eight hours of downtime for weekly PMs. That equals 10 hours of total downtime.
How do you calculate downtime percentage?
Example
- Total number of seconds your website was down: 600 seconds.
- Total number of seconds your website was monitored: 86,400. We divide 600 by 86,400, which is 0.0069. In percentages, this is 0.69%.
- This is the downtime percentage.
- The uptime percentage for this website would be: 100% minus 0.69% is 99.31%.
How do you measure downtime?
The downtime productivity loss calculation is typically represented as: Number of users affected multiplied by the percent effect on productivity multiplied by the average burdened salary per hour multiplied by the duration of downtime equals downtime impact.
How do you calculate machine availability?
What is the Machine Availability calculation?
- Availability (%) = Run Time / Planned Production Time.
- Performance (%) = Ideal Cycle Time × Total Count) / Run Time.
- Quality (%) = Good Count / Total Count.
How much downtime is 99.5 availability?
Percentage calculation
| Availability % | Downtime per year | Downtime per month |
|---|---|---|
| 99.5% (“two and a half nines”) | 1.83 days | 3.65 hours |
| 99.8% | 17.53 hours | 87.66 minutes |
| 99.9% (“three nines”) | 8.77 hours | 43.83 minutes |
| 99.95% (“three and a half nines”) | 4.38 hours | 21.92 minutes |
What is availability rate?
Machine Availability Rate is the percent of the time that production equipment is available for use, divided by the maximum time it would be available if there were no downtime for repair or unplanned maintenance.
How many hours is 99.9 downtime?
What is a good uptime percentage?
Amazon, Google, and Microsoft’s set their cloud SLAs at 99.9%. The industry generally recognizes this as very reliable uptime. A step above, 99.99%, or “four nines,” as is considered excellent uptime.
How do you calculate production availability?
The calculation of the availability rate is:
- Availability = B / A x 100.
- = 77.7%
- Performance = D / C x 100.
- = 86.1%
- Quality = F / E x 100.
- = 97.8%
- OEE = 65.4%
How many minutes per month downtime is 99.99 availability?
Identify dependencies
| SLA | Downtime per week | Downtime per month |
|---|---|---|
| 99% | 1.68 hours | 7.2 hours |
| 99.9% | 10.1 minutes | 43.2 minutes |
| 99.95% | 5 minutes | 21.6 minutes |
| 99.99% | 1.01 minutes | 4.32 minutes |
How is unscheduled downtime measured in a mill?
Estimate Current Unscheduled Downtime (days). In our example, there are 15 days per year in Unscheduled Downtime or 4.1% of lost production. Estimate Maintenance cost as a percentage of sales. For a mill, industry data suggest that 10% of sales are allocated to Maintenance expenses.
How to calculate the cost of downtime in manufacturing?
Therefore, 10,000 units divided by 40 planned hours of operation = 250 units produced/hour. Now that we know our hourly production rate, we can multiply that by the number of hours that machine was down. 250 X 24 = 6,000 units not produced. Finally, we can multiply that 6,000 units by your gross profits per unit.
How much downtime can you expect at 99.999%?
Small variations in availability percentages go a long way. The table below shows how much downtime we can expect at different availability percentages. At 99.999% availability (also known as five nines), we can only expect 5.26 minutes of downtime a year. But if we let availability slip to 99%, downtime goes up to 3.65 days a year.
How to calculate availability as a maintenance metric?
Availability (%) = [Actual operation time (hours)/Total time (hours)] * 100 Where the actual operation time can be obtained by deducting any planned or unplanned downtime from the total time: For example, say a working mechanical mixer is observed for 10 hours. A mechanical breakdown causes it to stop abruptly.
