Every copy of a mailbox database in a DAG is assigned an activation preference number. This number is used by the system as part of the passive database activation process, and by administrators when...
Updated Jul 01, 2019
Version 2.0
Blog Post
This should have been part of Exchange long ago but thanks for adding it now. A couple of questions:
1. What's the strategy for server maintenance now ? i.e. you activate ServerX's active db copies elsewhere, the server is undergoing maintenance for several hours and the new behavior in CU2 keeps reactivating the copies on ServerX which is not what you want of course. Do we need to set and undo ([TimeSpan]::Zero) on every server in the DAG every time we want to do server maintenance?
2. Will -PreferenceMoveFrequency be available in the GUI as well or is this yet another setting we'll need to remember or look up.
3. Will this be added to Exchange 2013 at some point ?
Thanks
- @sime3000 -
#1 - see Jared's response
#2 - no plans to add this to EAC
#3 - no, this an Exchange 2016 feature
- @sime3000. When you put a MailboxServer into maintenance, you should set the DatabaseCopyAutoActivationPolicy to Blocked. That'll prevent databases to moving to it.
- @sime3000 - when you place the server into maintenance mode it will prevent that server's database copies from activating while you are performing your maintenance. I'm not sure if my comment will get quarantined if I post a link, but the steps are easy to find via Google/Bing etc.