I have a web system. I need to calculate the up time of the whole system. I have load balance (in the moment without virtual ip and redundant load balance), one database. Two servers as cluster. Host provider.
Can someone tell me in rude steps how can I take all this and how can I estimate the up time of the system ?
How is the up time of a complex system calculated ?
I know this is difficult to say, but please explain some general methods.