4 ms·
Don't forget to alert when the double derivative of capacity growth is above a (very low!) threshold, that can catch an explosive problem far earlier than the 7
by codebje 8y ago
Don't forget to alert when the double derivative of capacity growth is above a (very low!) threshold, that can catch an explosive problem far earlier than the 70% mark, by which time it might be growing at 5% per second.
- bostonvaulter2 8y agoThat sounds like a very interesting metric to track and report on. Do you have any further references that discuss that approach?
- codebje 8y agoNot offhand, sorry - I first encountered the notion at a conference some years back, but I've long since gotten out of operations so it's all a bit dusty for me now.
- cheeze 8y agoIt might also be a momentary blip that you really shouldn't need to wake a human up for. The hard part of monitoring imo is that perfect balance. Asymtotically approaching nirvana but never quite reaching.
- codebje 8y agoAll monitoring has that problem :-) But if your rate of rate of change has been positive for some suitable amount of time for the context, it's worth waking a human up over it, because the amount of resource remaining is dwindling exponentially.