Planned Outages are Still Outages
Don’t be fooled into thinking your site is highly available when it isn’t.
Planned and regular maintenance involving unavailable applications still counts against availability for those applications. After all, from your customer’s viewpoint, your application is still unavailable. The fact that you planned that it would be unavailable is not important to your customers.
I often hear companies using routine maintenance windows as an excuse. Usually, the argument goes like this:
“We have fantastic availability — our application never …
