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In the event of an emergency such as a fire, computer systems in
a building need a way to backup important data as soon as the emergency is
detected. This idea uses a broadcast message to inform all systems to
backup their data.
English (United States)
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Automation of Emergency Data Backup
Every machine will run an emergency daemon that monitors a well known port for emergency messages. In the event of a calamity, only authorized people (e.g. management, site security) would be able to send a broadcast message to this port. Messages can be sent at different emergency levels. As soon as the daemon receives a message, it checks the level of the emergency and takes action accordingly. Actions could be as simple as "shut down the machine" or as complex as "backup all data first and then shut down". The daemon needs to be configured with a list of safe machines e.g. at another site, to which it can backup data. Also configurable would be a list of filesystems to back up. Each of these file systems will have a priority, so that the most crucial data gets backed up first.
The key idea here is an authorized broadcast which will save important data and reduce recovery costs after an emergency. By starting a data backup operation on detecting the first signs of an emergency, it is more likely that important data will be backed up before catastrophic situations that may otherwise completely obliterate the data.
Disclosed by International Business Machines Corporation