Solved

Exchange 2013 (On 2008 Server R2) - Cluster issues when quorum lost

Posted on 2016-10-28
4
35 Views
Last Modified: 2016-11-13
9 Exchange 2013 mailbox servers all running on Windows 2008 Server R2. All part of the same DAG (so just one cluster).

Inadvertently, powerer off 5 of these mailbox servers - bad idea. According to my reckoning, due to odd number of members, the quorum should be relying on a majority count of members. Since it no lonfer has a majority then the databases should be dismounted on the remaining servers.

This didn't happen. The exchange databases stayed up - albeit the CAS servers went to 100%.

We then powered back up the 5 servers but the cluster did not recover on its own. On each of the 4 servers that did not power down the cluster status still showed down. A restart of the windows cluster service on each of the 4 servers sorted this out.

Question is :-

1. Any idea why exchange did not dismount DBs when quorum was lost?

2. Why did cluster not recover when the servers were back?
0
Comment
Question by:paulfoel
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 3
4 Comments
 
LVL 19

Expert Comment

by:Zaheer Iqbal
ID: 41863650
I would say this should be logged with Microsoft.
0
 
LVL 1

Author Comment

by:paulfoel
ID: 41863743
If my client had a support contract....... :-(
0
 
LVL 1

Accepted Solution

by:
paulfoel earned 0 total points
ID: 41878515
Looks like powerinbg off DAG members is never a good idea.
0
 
LVL 1

Author Closing Comment

by:paulfoel
ID: 41885225
No other answers provided.
0

Featured Post

PeopleSoft Has Never Been Easier

PeopleSoft Adoption Made Smooth & Simple!

On-The-Job Training Is made Intuitive & Easy With WalkMe's On-Screen Guidance Tool.  Claim Your Free WalkMe Account Now

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Following basic email etiquette rules will help you write a professional email and achieve a good, lasting impression with your contacts.
This article explains in simple steps how to renew expiring Exchange Server Internal Transport Certificate.
This tutorial will walk an individual through the steps necessary to install and configure the Windows Server Backup Utility. Directly connect an external storage device such as a USB drive, or CD\DVD burner: If the device is a USB drive, ensure i…
This tutorial will walk an individual through the steps necessary to join and promote the first Windows Server 2012 domain controller into an Active Directory environment running on Windows Server 2008. Determine the location of the FSMO roles by lo…

738 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question