Hi Ryan,
Depending on the severity of the power outage, this can cause a lot of strange or damaging problems. If there is a power spike or a drop in power low enough, I have seen devices lose entire configuration and even in a worse scenario completely corrupt flash.
In a scenario where a device receives too little power, certain functions don't work, such as DHCP may stop working as an example. Or, if a device receives too much power, it can cause damage to the hardware components are cause unpredictable interruptions that may interfere with write processes.
During the hurricane recently, I had a person call in who had a switch, they lost power, it was severe enough the switch couldn't recognize its own serial number, mac address or hardware ID. It had to be manually written in there before we could load the flash (with the terribly long xmodem process!).
The best I could recommend is to ensure you have a solid power source but also redundant power equipment such as an APC UPS.
-Tom
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-Tom
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