Eaton Electrical 34003991EN/EB - Manual (Page 65)

Network Management Card – User Manual 34003991EN/EB Page 65/118
5 Server protection
5.1 Set-up of the shutdown parameters
The protection application : Network Shutdown Module or Netwatch, on protected server boot, subscribes itself
automatically to notified applications list and sends its essential data:
◗ IP Address or hostname of the server on which it is installed: So that the card can inform it of power events.
◗ Time required to shutdown the server (Shutdown Duration, configurable in the "Set-up" menu of each NSM): The
card takes into account the longest shutdown time of all the Network Shutdown Modules subscribed (This is the
Shutdown duration of the Shutdown parameters ) page to manage UPS shutdowns without affecting any of
Shutdown Modules connected.
During normal operation, the protection application periodically checks its connection with the card.
In case of a major power event, the card sends information to the protection application which reacts according to the
situation. (shutdown order, programmed actions, messages to the administrator and to users via the network)
When the server shuts down, the protection application unsubscribes itself from the notified applications .
5.1.1 Shutdown criteria managed by the Network Management Card
During an extended power failure, three criteria may cause the server shutdown procedure to be initiated. If several
criteria are selected, (See page Shutdown parameters ), the first criterion encountered will launch the shutdown
procedure.
At the end of the shutdown procedure, when all servers have been shut down, the UPS may shut down to avoid
unnecessary discharge of its batteries, depending on its configuration.