Python's nest

My Citrix XenServer pool is powered through network enabled APC Smart-UPS (6000 RT)

There are at least two ways of monitoring UPS state in order to shutdown pool members and VMs running in the pool when juice is over:

– apcupsd (installation used to be somewhat tricky before XenServer 5.6 and included some unsupported movements)

– getting values from UPS via SNMP and acting accordingly to them – the way which I went, and you’re welcome to see detailed route description.

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