answer:I recently did this because we had an issue with our Generator not cutting over. Once the UPS runs out, hard loss of power will affect hard drives, system boards, cache batteries, etc for weeks after power is restored. I put together a script that called psshutdown or WMIC for all Windows servers. I did them in batches for controlling them (Critical Apps, Email Servers, ancillary, AD/GC/DC) in a better timing and order. Be extra careful at who has the ability to execute these as you are talking about shutting down your environment. Put operation controls in place at when and how these are executed. Create password control so they are not inadvertantly or maliciously executed. PM me if you need more info. Both are free. WMIC commands SysInternals psshutdown