Tuesday, May 01, 2012 8:24 PM
SITE I - Primary
SITE II - CoLocation
One: Alt. FSW
Now if site two goes down due to power outage.. Primary flies solo, no problem
But, if during the power outage ONE of the servers in Primary reboot/fail.. we loose node majority.. mail fails.. we need to restart cluster service in forced quorum (/fq) and evict a DAG node.
What is the best solution? Adding two more mailbox servers in Primary?
Tuesday, May 01, 2012 9:32 PM
What you can do is to use two DAG.
- DAG1: two MBX in Site 1 and one MBX in Site 2. Witness server in Site 1
- DAG2: two MBX in Site 2 and one MBX in Site 1. Witness server in Site 2
On DAG1, add mailboxes of users in Site 1 on its databases.
On DAG2, add mailboxes of users in Site 2 on its databases.
Like that, if a site is down then the second site will not be down and you will have a passive copy of databases of the down site.
For more information about Datacenter Switchovers: http://technet.microsoft.com/en-us/library/dd351049.aspx
Tuesday, May 01, 2012 10:26 PM
Dont forget to add your CAS\HT roles as well in both sites
Bulls on Parade
- Marked As Answer by Terence YuModerator Tuesday, May 08, 2012 3:00 AM