Smart UPS 1500 SUA1500RM2U Power Outage Servers Hard Booted

[BillP]

We have a Smart UPS 1500 SUA1500RM2U with 4 Servers plugged into it.

When we lost power in the building, the servers hard rebooted, eg, lost power and rebooted.

I don't know a lot about UPS's. Isn't the UPS supposed to prevent this?

I pressed the test button, for 5 seconds, and the test succeeded. All the lights are green. No alarms. When I press the test button, the UPS makes a clunking sound.

We aren't using the UPS powerchute software, nor do we have a USB cable attached.

[BillP]

does the UPS have a network management card in the back?

in order to provide a graceful shutdown, the attached servers need to be talking to the UPS - either via serial or USB, which is only good for one server to one attached server. this method uses powerchute business edition. alternatively, you can have a network management card installed in the UPS and then install powerchute network shutdown on each server. the UPS needs to signal to that software running on the servers when its time to shutdown. without either type of powerchute installed on your softwares, i'd expect a hard reboot.

i'd first check to see if you have a network management card installed in the back of the UPS if you're sure about no USB cable.

[Anonymous user · Accepted solution]

Your best bet is to run the UPS selector on the APC website and see if the UPS is under to heavy a load for the 4 servers. If your UPS has the LCD screen on the front you could check the load from there, if not you will have to install the PowerChute software and install a Network Management Card. Hope this helps.