Hi there,
We have several monitoring routines.
Daily (done twice a day): We check history file looking for errors and midnight routines, check loops (stat & lcnt), superloops, CPU, CMDU, Elan, AML and MFC (we have E1s mainly).
Every 15 days, the day before the traffic peak, our daily routine is much more complete because we add verifications of Conferences, tones, templates, auditories, TTYs and fiber loops (FNF). Remote access, rectifiers and system monitors are verified.
These reports are consolidated and sent every week with some notes regarding frecuent alarms or events.
The report of the month is related to events, traffic and capacity in every system (Max, Mail, SML, Mlink, ASTs, slots available, stock).
Every six months a capacity projection report is done. it's intended for planning in the long term.
Once a month we operate in batteries for 30 minutes, to check our power backup (we log the discharge curve). One day after we run equalization for one hour.
I hope this helps, and also I accept any suggestions.