Hi Experts ,
Before the question below are My configuration :-
I have exchange 2013 in DAG, Two mbx servers and Two cas servers running on Two Hyper-v host server running on windows server 2012 .
1. Host 1 server has MBX server 1 & CAS server 1 on hyper-v
2. Host 2 server has MBX server 2 & CAS Server 2 on Hyper-v
3.File witness server is running on CAS Server 1.
4. Fail over cluster type "Node and fileshare Majority"
5. Failover cluster members "Mbx1 ,Mbx2 & Cas1"
Is it required to configure alternative file witness server on same data-center.? The reason been ,recently I had to shutdown host server 1 & 2 (Each servers one at a time) for a hardware maintenance .But when i took the host server 1 offline My all the 7 databases got dismounted whereas when i took the server Host 2 offline databases were running just fine , i didn't have any issue.
I assume DBs were dismounted because ,filewitness server and fail over member (MBX1) were offline out of 3 members participating on fail over cluster .
Please enlighten me on below doubts :-
A. What are the best practice to consider to avoid such a scenario?
B. How can i change File Witness Server if existing File witness Server crashes ?
C. How can i move file winess server from CAS1 to CAS2 without downtime?
D. or Do i really need an alternative FWS ? if so , what are the steps to create ?
Thank you in advance for your support,
PS:- All the exchange servers are running on Microsoft windows server 2012 .