How do I determine when to do system maintenance? [closed]

Question

Many factors come into play when determining the best time to take a system down for maintenance in a way that is economical, has the least impact on users, and the best chances to be completed promptly.

Answer 1

These are the factors that I traditionally consider.

1. When is the system least utilized, including usage by users outside the library walls. (midnight might not be the best time for academic libraries if that is when students sit down to do research) Also take into account the time of year (for academics, at the end of terms when projects are due is particularly bad)
2. If you may be relying on support from a service provider -- particularly in cases where something goes wrong -- schedule it when that service provider is available. (this may exclude Friday nights and weekends from consideration)
3. When you can give enough advance warning to library staff. (24 hours is usually considered the bare minimum except for emergencies; the more drastic the change the more lead time you'll want to give)
4. When you are well rested and most able to deal with problems that may occur (even if you have to negotiate a specific short term swing schedule to move your work hours so you are not trying an upgrade right after working a normal 8-hour day)

Finding the right time will be a balancing act of all of these factors.