I have 45 projects, 500 custom fields, 120 workflows, 300 user groups and 40,000 issues (adding 1200 issues per week). I'm looking for some general guidance. I know I need to consult with an expert, but wanted to get some feedback so I know what direction I should be headed in.
There is some push to have a single instances, where other people think maybe 3-5 is a good way to go.