Xtreme Power Conversion Corporation
Web/SNMP Cards
Page 31
UPS Management
First of all, the RCCMD Client software is a licensed software. A license code can be used for only one installation.
If more servers are to be included in the shutdown process, more licenses are needed.
For increased safety, a list of trusted RCCMD Servers can be defined in the RCCMD Client. This way, the RCCMD
Client will accept only messages coming from the trusted Servers, and will discard any other RCCMD message. If
such functionality is used, the SNMP/Web adapter IP address must be added to the list of trusted RCCMD Servers.
Finally, a shutdown routine needs to be defined in each remote system. This may be a batch file, a shell script or
other. It shall include all commands for a graceful shutdown of the system.
Configuration of the SNMP/Web adapter
The SNMP/Web adapter can be configured using the web interface or the command-line console.
First of all, in order to use the RCCMD Sender embedded in the SNMP/Web adapter the Network Shutdown func-
tionality must be enabled.
Then, the various servers must be added to the list of RCCMD Clients on the SNMP/Web adapter. For each client,
the Hostname or IP Address and the port on which the RCCMD process will be listening need to be specified (the
standard RCCMD port is 6003).
NOTE
: Although it is possible to identify the servers with their hostname, it is strongly recommended to specify
their IP addresses. Using symbolic hostnames may cause the network shutdown to fail in case the DNS server is
not available, unreachable or mis-configured.
Finally, it is possible to configure the actual condition that triggers the RCCMD Shutdown command:
• After X minutes that the UPS is running on battery
• At X minutes of estimated minutes remaining of battery autonomy
• When the UPS signals a low battery condition
Note that a low battery condition will force the shutdown of the configured RCCMD Clients regardless of the cho-
sen shutdown condition.
The configuration of the clients can be tested – the SNMP/Web adapter includes a Test function. This allows to
send either a test message to the Client, or to force a shutdown. It is important to monitor both the messages
returned from the SNMP/Web adapter and the actual result on the Client. Depending on the configuration, the
SNMP/Web adapter may successfully send the message, but this can be ignored by the RCCMD Client.
Network configuration
The RCCMD Shutdown command travels across the network using standard TCP/IP protocols. Therefore, the net-
work configuration may affect the Shutdown process. Particularly:
• As stated above, the RCCMD Clients allow the definition of a list of trusted RCCMD Servers (that is, RC-
CMD Servers allowed to send a shutdown command). When this safety feature is used, the SNMP/Web
adapter IP address must be added to the list of trusted RCCMD Servers for each RCCMD Client. Therefore,
the SNMP/Web adapter should be assigned a static IP address when possible. If a DHCP Server is used, it
should be configured so that the SNMP/Web adapter is always assigned the same address.
• The various servers to be shutdown must be added to the list of RCCMD clients on the SNMP/Web adapter.
Although it is possible to identify the servers with their hostname, it is strongly recommended to specify
their IP addresses even if DNS hostname resolution is configured. The network shutdown may fail if the
DNS server is not available or unreachable.
• The entire network infrastructure, including routers, switches, hubs, etc. must be powered by the
• UPS. Otherwise it may not be possible to reach all clients during Network Shutdown.
