If connectivity is good then no questions, there are bunch of ready to use solutions like Munin, Nagious, etc.
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If connectivity is good then no questions, there are bunch of ready to use solutions like Munin, Nagious, etc. The problematic usecase is having servers that are mostly or entirely offline. The way might be collecting data on school servers and pass them to the mothership somehow via sneakernet.
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Thoughts:
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* run http://collectd.org/ daemons on school servers and provide useful uploading method