How to calculate the savings when you abandon the server / servers?

Question

Analytics

There is a pool of servers. Some of them are frankly old. You need to calculate the savings if you refuse them.
Come to mind:
- renting racks
- paying for electricity
- need for support (updating software, firmware)
- releasing software licenses
What else can be added here? Share your experience

Answer 1

For frankly old ones, add the risks of failure, the risks of technological debt, when replacing such a server can take many times longer.
And in general, frankly old ones that are not supported by the vendor should, in principle, be removed from production.