SQL SERVER – The Lease between Availability Group ‘PRODAG’ and the Windows Server Failover Cluster has Expired

This is one of the common errors I have seen while working with customers who are using SQL Server AlwaysOn availability groups. Once this error comes, the resource in the cluster goes to failed state and in SQL Server Management Studio, we should be an availability group in resolving state. Resolving state essentially means that the role of availability group is neither primary nor secondary.

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SQL SERVER – Error After Cluster Patching – Error: 5184, Severity: 16, State: 2

During my last consulting engagement, I was pulled by my client to consider an issue which they were facing. They informed that they have applied service pack on one of their clustered environment and since than SQL Server is not coming online. I asked to share ERRORLOG from the SQL instance. SQL SERVER – Where is ERRORLOG? Various Ways to Find ERRORLOG Location. Let us learn about how to fix error after cluster patching.

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SQL SERVER – FIX Error – Cluster Network Name showing NETBIOS status as “The system cannot find the file specified”

Over a period, I have learned that fixing an issue is easier if we know which log we should look at and what we should search on google. Here is the situation which I was into few days back. In this blog post we will learn how to fix the error Cluster Network Name showing NETBIOS status as “The system cannot find the file specified”.

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