Does Regular maintenance count as Downtime?
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Scheduled maintenance, planned for only. Be it for system updates and restarts or hardware upgrades / cleaning etc.
Just a random thought as I'm wanting to reboot a server to apply some updates mid-afternoon. (of which no one would notice I rebooted)
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It's called "Planned Downtime".
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@scottalanmiller would you add or subtract it from your five nines of uptime guarantee if you had one?
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IE: I promise this system will be up 99.999% of the time.
Does that account for reboots and patching and general maintenance? Or is that something different as in. Outside of reboots, updates and maintenance we promise the system availability 99.999% of the time?
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All downtime = no service availability.
However, planned downtime is way better than unplanned, especially if you word it creatively.
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@tim_g said in Does Regular maintenance count as Downtime?:
All downtime = no service availability.
However, planned downtime is way better than unplanned, especially if you word it creatively.
I get that, but that doesn't answer the question.
It's a question of what does 99.999% include.
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@dustinb3403 said in Does Regular maintenance count as Downtime?:
@tim_g said in Does Regular maintenance count as Downtime?:
All downtime = no service availability.
However, planned downtime is way better than unplanned, especially if you word it creatively.
I get that, but that doesn't answer the question.
It's a question of what does 99.999% include.
Depends, everyone has their own definition. To the business, it is only unplanned downtown that counts as an outage.
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So if I chose to reboot a server for tomorrow at 12PM noon, that wouldn't count as downtime even if it's the middle of the day (and no one is affected).
Eh words suck some times. I'm just going to plan my day in 15 minute intervals so I can restart whatever, whenever.
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@dustinb3403 said in Does Regular maintenance count as Downtime?:
So if I chose to reboot a server for tomorrow at 12PM noon, that wouldn't count as downtime even if it's the middle of the day (and no one is affected).
Eh words suck some times. I'm just going to plan my day in 15 minute intervals so I can restart whatever, whenever.
Well, planned downtime refers to planned "for the business", not planned by you the second before you rebooted.
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@dustinb3403 said in Does Regular maintenance count as Downtime?:
It's a question of what does 99.999% include.
That percentage is uptime, and specifically means that services are available 99.999% of the time... with no more than 5 minutes 15 seconds of downtime per year.
This is achieved through High Availability solutions. Such as in the example of websites, load balancing web servers with redundant reverse proxies, IPs, DNS, etc...
You can't have uptime like that if services are unavailable...
You do planned maintenance piece by piece so that you don't have to bring down your services. You would do firmware or OS updates on nodes 2, 4, and 6, while nodes 1, 3, and 5 are still running and providing services.
