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My Linux box will be automatically shut down by the attached UPS if it is running and the AC power fails.
If I have the Linux box suspended and the AC power fails, I assume the UPS can not shut it down. What are the consequences of AC power failure on a suspended Linux system?
I'm not sure what your asking, there is nothing unique about Linux to this situation. Of course, it can't shutdown cleanly, it is suspended... but most Linux filesystems recovery nicely from a dirty shutdown, of course everything actively open that hasn't been committed to storage will be lost. Is that what your asking? And why suspend a desktop machine, just leave it on or shut it down is usually the better option. – acejavelin – 2016-07-16T13:56:19.260
I'm not asking if it's a good idea or for suggestions about how to operate my system. I'm asking if my system is suspended and the AC power fails, what happens to my system. – Organic Marble – 2016-07-16T14:32:26.423
I don't know about Linux, yet Windows usually enables hybrid sleep on desktops: it combines regular sleep and hibernation. If AC power failure occurred, the saved data will be read from disk – nothing is lost. From my experience at least, Windows is able to hibernate your computer if its battery runs flat while it's in sleep mode. – Alexey Ivanov – 2016-07-17T08:48:01.193