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4 Servers protection
4.1 Set-up of the shutdown parameters
The Network Shutdown Module, on protected server boot, subscribes itself automatically to Notified
Applications list and sends its essential data:
IP address of the server on which it is installed, to be notified by the card of any power events
Time required to shutdown the server (Shutdown Duration, configurable in the Shutdown Module "set-up"
menu):
The card takes into account the longest shutdown time of all Network Shutdown Modules subscribed to
manage UPS shutdown without affecting any of the connected Shutdown Modules.
In case of a major power event, the Shutdown Module receives messages from the card and regularly checks
its accessibility. The most important messages can generate actions and are sent back to the administrator and
users via the network.
When the server shuts down, the Shutdown Module unsubscribes itself from the Notified Applications.
4.1.1 Shutdown criteria managed by the Management Card
During an extended power failure, three criteria may cause the server shutdown procedure to be initiated. If
several criteria are selected, 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.
4.1.1.1 Backup time before initiating the shutdown procedure (Shutdown After)
When the UPS switches to battery, the Network Management Card starts the Shutdown Timer countdown and
launches the system shutdown procedure at the end of the countdown.
This value must be chosen so that users have time to complete their tasks and disconnect, without exceeding
battery backup time.
By default, this value is set to 30 minutes.
Note 1:
The Network Shutdown Module also manages its own Shutdown Timer
Note that if this criterion is selected to initiate system shutdown, automatic system reboot when power is
restored is not guaranteed (e.g. power restoration if only this system was shut down). We recommend leaving
this parameter at a value greater than that of the card's Shutdown Timer.
By default, this value is set to 31 minutes.
T H E
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P O W E R
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Management Cards
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