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Anonymous
Not applicable

Calculate downtime with days of different length

I need to calculate the downtime of various critical systems (think telephony, website, etc.):

  • Per system
  • Per business process affected
  • Overall for the organization
  • Per month and YTD.

 

Why it's complicated: 

  • Some systems need to be up 24/7 (website, for example) and others during specific periods (operating hours): the sales DB might need to be up 8:00 to 20:00 Mon-Fri, 9:00 to 15:00 Saturday and closed on Sundays whereas telephony and intranet would be 7:00 - 22:00 7 days/week, etc.
  • Some downtime events might be over more than one calendar day and those days may have different operating hours.
  • Some events affect more than one system, and those systems might have different operating hours.
  • Some events affect more than one business process.
  • Schedules might change during the year

 

Here's a sample of data I have at this point: (I do have a date dimension table and can create a time dimension table as well)

Outages

Outages.png

 

Systems to Business process mapping

System-Business Process.png

 

Systems operating hours

Schedules.png

 

Everything I found so far is for simple, fixed hours workdays with the only twist being weekends/holidays.

 

Anyone has an idea how I can achieve this?

2 REPLIES 2
v-jayw-msft
Community Support
Community Support

Hi @Anonymous ,

 

If I understand you correctly, I think the entry point is to divide the rows which downtime more than one day into day-by-day rows as below:

1.PNG

BTW, could you please share some sample to me if you don't have any Confidential Information?

Best Regards,

Jay

Community Support Team _ Jay
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Anonymous
Not applicable

Hi @v-jayw-msft 

 

I don't have access to online file storage from work. 

Otherwise, the screenshots are from a dummy file that doesn't have confidential information: I invented the names, dates, schedules, etc. but the structure is identical. I did save it just in case.

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