You have five servers that run Windows Server 2012 R2. The servers have the Failover Clustering
feature installed. You deploy a new cluster named Cluster1. Cluster1 is configured as shown in the
following table.
Server1, Server2, and Server3 are configured as the preferred owners of the cluster roles. Dynamic
quorum management is disabled.
You plan to perform hardware maintenance on Server3.
You need to ensure that if the WAN link between Site1 and Site2 fails while you are performing
maintenance on Server3, the cluster resource will remain available in Site1.
What should you do?
A.
Add a file share witness in Site1.
B.
Enable DrainOnShutdown on Cluster1.
C.
Remove the node vote for Server4 and Server5.
D.
Remove the node vote for Server3.
Explanation:
Recommended Adjustments to Quorum Voting
When enabling or disabling a given WSFC (Windows Server Failover Clustering) node’s vote, follow
these guidelines:
* Exclude secondary site (here site2) nodes (here server4 and server5). In general, do not give votes
to WSFC nodes that reside at a secondary disaster recovery site. You do not want nodes in the
secondary site to contribute to a decision to take the cluster offline when there is nothing wrong
with the primary site. WSFC Quorum Modes and Voting Configuration (SQL Server)
I did some research and found the given explanation only in articles describing SQL Server (esp. 2016!)…
Doesn’t make this a difference to Server OS?
Wouldn’t A be also an option?
0
0
“A” is not an option because a file share must be independent of the sites. It must reside outside Site1 and Site2 so that both of them have access to it.
https://blogs.technet.microsoft.com/askpfeplat/2012/06/27/clustering-what-exactly-is-a-file-share-witness-and-when-should-i-use-one/
0
0
Looking back through the old posts and docs and putting it all together.
Key facts, Hardware maintenance = Server down.
Wan link failure.
A.
Add a file share witness in Site1.
B.
Enable DrainOnShutdown on Cluster1.
Obviously not correct.
C.
Remove the node vote for Server4 and Server5.
Hardware Maintenance = Server 3 down and wan link down, server 4 & 5 votes wouldn’t count anyway and it wouldn’t matter since the wan link is down, either way no votes (server4 &5), Server 1, 2 and 3 left to vote – server 3 = down, with or without this vote = no quorum because only sever 1 and 2 are left.
D.
Remove the node vote for Server3.
Hardware maintenance = server 3 down. Wan link down (No Votes Server 4 &5), without vote from server 3. Only Server 1 and 2 left to vote = no quorum
I cant think of “A” answer.
Maybe I could do “A” temporary solution during the hardware maintenance of “A” FSW in site 1.
Hmm, maybe
0
1
@msdrone: All servers vote. It doesn’t matter whether the site is down or not. This is how quorum is established or not. In this case it would be suffice just for one server in Site2 to be stripped down of its vote.
0
0