Because we don't know the answer to this question following any specific power outage, we are reluctant to turn back on servers right away. Instead, we like to wait ~10-25 minutes.

What would it cost to UPS our research systems?

Assuming protection for 1-3 minutes MAXIMUM:

Do all headnodes: Getting done. About $170/ headnode every ~4 years.

Do all switches: Maybe ~$ 340 ($170*2), every ~4 years.

Do all compute nodes: ~$18K.

~20 20amp UPS's ($900 each) required.
These are from back-of-the-envelope calculations.
If were to actually implement, may be smarter ways to do this, but cost will likely not be lower. (In fact, costs may be higher, if sufficiently higher benefit doing it a different way, for example.

Reboot switches

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