Re: UPS sharing
- From: "Vanguard" <vanguard.code@xxxxxxxxxxxxxx>
- Date: Wed, 4 Jan 2006 01:27:11 -0600
"Shaik" <znmstyles@xxxxxxxxxxxx> wrote in message news:OwCPxCOEGHA.2704@xxxxxxxxxxxxxxxxxxxxxxx
I have 3 Servers running on a 1 KVA online MGE UPS, the problem is that I can connect only 1 Server with the UPS through its USB...and the other two Servers then on the risk of electricity failure. SNMP is best solution I think but its too costly for me, so please advise the cheaper one. :)
1 kVA for *three* hosts (regardless of whether they are servers or workstations)? Sounds way too light unless all you want to ensure is enough time for the servers to properly shutdown after a very short "holding" interval (i.e., the UPS is only used to provide outage protection for a few minutes afterwhich they must provide enough power to ensure the servers can shutdown properly).
Why would the USB restrict which hosts can connect to the power outlets on the UPS? Yeah, only one would have a communications connection but that doesn't prevent connecting multiple hosts to the outlets on the same UPS.
Doesn't the UPS come with "server" software and "clients"? That is, isn't there a server program for the UPS monitoring that you could install on one host which uses USB to communicate to the UPS that could use the network to communicate with "client" programs for UPS monitoring on the other hosts (to have those clients execute a shutdown of those other non-directly connected hosts)? According to their manual at http://www.mgeups.com/download/soft/explore/eng/ptp/ptp_sol.htm?os=WIN:
"The PSP software ensures that all computers are correctly shutdown."
"All" implies more than *one* computer can be shutdown. Broadcasting is also mentioned. Why would you need to broadcast anything unless it was to alert the client program on other hosts that it should perform a shutdown? Obviously you would need a LAN connection between the hosts so the client could receive the broadcasted message. My guess is that install their software on each host (but only include the USB support on the one host which connects to the UPS). It may very well be that this product, and especially its software, is designed to only support a single-host setup, and that some other product of theirs supports a multiple-host setup but you didn't get that product.
You might want to check at http://www.mgeups.com/ to ask their support how to get multiple hosts connected to one UPS to concurrently execute a shutdown during an outage although only one of the hosts can be connected directly using the USB interface to the UPS.
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