What threatens the HP ProLiant DL160 Gen9 server with a failover?

Question

network hardware

At work, when everyone had already left, they cut off the electricity without warning. Accordingly, the server crashed. There are several Hyper-V virtual machines (DNS, SAP, DHCP, AD) on the server. Back in the rack, Synology storage is unpretentious. A planned shutdown has already happened, turned it off and on through Shutdown, everything started perfectly. I'll have to go on the eve of 01/01/20, run it. What can go wrong when turning on after an emergency shutdown, and what is the probability that nothing terrible happened?

Answer 1

What can go wrong when turning on after an emergency shutdown, and what is the probability that nothing terrible happened?

Well, I once had all the virtual machines (8 pieces) in Hyper-V unable to install updates normally, or some other unbridled garbage, in general, all 8 hung in an endless rollback of updates. Hemorrhoids were noble, I will report to you. Since then, I have respected IPMI.

Answer 2

Well, the worst thing is that the hardware raid did not have time to write the block, which it already reported as recorded :) The axis may stop loading. Or maybe not.