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  • Christopher Bennage thinks this is interesting:

Operations probably computes availability based on unplanned downtime, so 99.5% availability means only that the system had less than 216 minutes of surprises that month. This is a dodge. The system might have been down for five hours during change windows. Do the users of the system care whether downtime is planned or unplanned?


Cover of Release It!


I've assumed the opposite!