I am getting ready to apply CU6 to my Exchange 2013 environment ( currently CU4, SP1 ). I have a primary and a secondary site with the same number of CAS and Mailbox servers. Secondary site setup for resilience.
I know that Microsoft supports updating one half of a DAG environemt, following with the other after a soak period.
I am hoping to get some real world feedback on update practices.
- Update all servers same night?
- Update Primary one night and secondary next night? ( just a little easier on the tired techs )
- update primary site, leaving secondary site as fall back in case of issues?
How many days do you leave in the soak period? 1 day, 1 week?
What have you found to be reasonable and practical?
Thanks!
Tom