I am preparing for a ZMC 10.3.1 to 11.2 upgrade. Running Windows. Already read some docs and talked to Novell Support. I have three primary servers and one satellite. I have a new SQL 2008 server waitning in the wings.

Trying to figure out the downtime required. I know I have to upgrade the database to 2008 so the environment will be down at that time, but how long is this going to take? After the upgrade, I figured I would go ahead and bring the environment back up with 10.3.1 to make sure all is well?

I then figured the whole environment will be down again until I get all the servers upgrades to 11.2?

Isn't there also a tool that I can run to check for possible issues?

Thanks in advance for any advice and/or direction.