APC UPS for supporting multiple machines

975 pts.
Tags:
APC
Ethernet
Ethernet Switches
Switches
UPS
UPS managed shutdown
USB
We have an APC UPS that can shut down a server using USB or serial. Can we do this over ethernet to a switch? We want one device to support multiple machines.

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  • carlosdl
    I believe that APC has a shutdown module, which is an application you can install on your machines, so they are able to connect to the UPS (provided the UPS has an ethernet port) and receive shutdown signals when certain conditions are met. If I remember well, It can be downloaded from the APC site for free. However, it is possible that not all UPS models support this feature.
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  • Mattcassell
    Carlosdl is right. It depends on your model of UPS. For example the Smart-UPS 1500 can get an add in card (AP6931) that provides network management. With that you can get a free piece of software from APC called Powerchute Network Shutdown. This can be installed on the server and you can use it to shut itself down or to run commands based on certain events such as being on battery for 2 minutes. There are flavors of it for Linux, Windows, Novell, etc. I have only used it with Windows based machines and can tell you that the free version is not compatible with Hyper-V versions. However it that is what you have you can get around the issue by installing Powerchute on a non-hyper-v machine and then using scripts to shutdown the other machines remotely from that (PSShutdown is a nice tool for scripting the shutdown or remote Windows servers). Just my 2 cents.
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  • petkoa
    First, about the terminology in the question - UPS doesn't shut down the server - it just informs the server about loss of line power and about low battery condition of the UPS, then the server decides (or better say follows the admin instructions ;o) to shut down itself and to issue a shutdown command to UPS when both conditions are true - low battery and no line power... Now, some more options - there is NUT, an open source Network UPS Tool: it consists of 3 parts (1) an UPS driver(s) which communicate with the UPS(es) on the management machine, (2) a daemon which also resides on the management machine, gets info from UPS driver(s) and issues some commands (e.g., shutdown) to them, and also listens on network interface(s) to answer requests about UPS(es) status from (3) monitor, which resides on client machine powered by the UPS(es), asks the daemon about specific UPS status and takes care about client machine shutdown, logging, etc. Nut has a lot of drivers for different UPSes, the only drawback is that server part (drivers + daemon) works just on *nix (linux, bsd), so the management machine should have this type of OS. Monitor is ported to Windows - and it works without problem.
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