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Quorum witness failed in cluster

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Thursday, November 10, 2016 6:41 AM

How the cluster/AOAG will work if disk witness/file share witness failed.How to retrieve the cluster back?

All replies (7)

Friday, November 11, 2016 5:39 AM âś…Answered

Hi Mito,

>>But,how to bring the FSW back?

1.By restarting server.

2.By recreating

Find out the reason why FSW fail, repair the issue and it would work again.

Best Regards,

Leo

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Thursday, November 10, 2016 12:10 PM

Hi,

In Windows 2008 the cluster can survive without Quorum also

http://www.winvistatips.com/threads/what-happens-to-a-running-cluster-if-the-quorum-disk-fails.778325/

In Windows 2012 R2 there is option of Dynamic Quorum

http://windowsitpro.com/windows-server-2012/dynamic-quorum-windows-server-2012

https://blogs.technet.microsoft.com/askcore/2016/03/21/behavior-of-dynamic-witness-on-windows-server-2012-r2-failover-clustering-3/


Thursday, November 10, 2016 1:18 PM

Thanks Sukh. .So,if disk witness fails cluster runs without any issues.

What about file share witness?We are using windows 2012R2.


Thursday, November 10, 2016 2:00 PM

Hi

Firstly The Quorum disk should have multiple connections to the Storage and MPIO should be configured. Incase the disk goes offline please refer to the article which states how to start SQL cluster without Quorum. This may work for File cluster as well, however I could not test the same so please test once before implementation

https://www.mssqltips.com/sqlservertip/3310/force-start-a-windows-server-failover-cluster-without-a-quorum-to-bring-a-sql-server-failover-clustered-instance-online/


Thursday, November 10, 2016 2:12 PM

I had gone through the many sites and finally i found that there would be no issue on cluster if FSW fails in windows 2012 R2.

Please refer the below link.

http://dizdarevic.ba/ddamirblog/?p=147

But,how to bring the FSW back?

1.By restarting server.

2.By recreating

Can we create Multiple FSW's for the same cluster.


Thursday, November 10, 2016 3:32 PM

we should not have Multiple FSW's for the same cluster.


Wednesday, November 16, 2016 1:29 PM

Thanks a lot.