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Automatically Shutdown Multiple Servers After a Power Failure

Ever had multiple servers connected to the same UPS (uninterpretable power supply) and want to have them all shut down gracefully after a power outage?  It seems like it would be an easy thing to do, but it’s harder than you think. Most UPSs have either a serial port or a USB port to allow them to connect to a single server or workstation type computer for the purpose of monitoring the battery health and to alert you in the event of a power outage. They can not only alert you of the outage, but also after a specified time running on battery or after the batteries reach specific levels of charge. Continue reading Automatically Shutdown Multiple Servers After a Power Failure