Multiple SQL Cluster (2008, 2012, 2016) on a Single Windows Cluster
Hi Experts,Can I have multiple SQL Cluster configured on a single environment (Windows Cluster?For example - I have a 5 Node Windows 2012 R2 Windows Failover Cluster on which I want to configure 2...
View ArticleSlow SQL connection when using listener DNS name
Hi,I am observing an a slowness in SQL server connection when we are using SQL Server listener name in the connection string. However when we use the listener IP in the connection string instead of...
View ArticleDatabase backed up messages in both the primary and secondary replicas of HA...
There are couple of database servers in HA group (WSFC). The enterprise backup is netbackup and is configured to backup the primary server. However, the default backup on HA group is set to backup...
View ArticleDisable Log Stream compression on synchronous Availability Group SQL 2014
Currently running a SQL 2014 instance Availability Group(s) with a single synchronous replica.We're having some issues, and I"m seeing a large number of HADR_SYNC_COMMIT waits. In an attempt to...
View ArticleDatabase Growth
How to investige database grwoth? We found that one of our Db growing fast? so we wnat to find out that what causing thisWe are using Sql Server 2016 Ent SP2
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SharePoint Content database and SQL AOAG group
Hiour DBA think it is not possible for one database to be in two different SQL availability (AOAG) groups and I am struggle to find a clear answer online. Can anyone familiar with SQL 2012 AlwaysOn...
View ArticleAlways On Licensing and it's Cost
Hello All,We are planning to configure Always on, we need your help to let us know the best license which we can use with Optimal Cost. I get to know that we can use it for Enterprise Edition only, can...
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Can a SharePoint 2013 content database be added to a SQL AlwaysOn...
Hi AllCould someone advice or help answer if my interpretation of the diagram below is correct?If I am correct then should this hold truth Can a SharePoint 2013 content database be added to a SQL...
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Link server configured to connect Always on read only connection to secondary...
Hi we have always on server 2016 R2 configured and read only routing also configured . Basically "user1" connect from client server and display as secondary server. That ensured the read only routing...
View ArticleFailover Cluster with Databases stuck in "Recovery Pending" after failover event
Hello,i'm facing issues with my failover cluster.I've installed a SQL Server Failover Cluster with Windows Server 2012 and SQL Server 2016 SP2 Enterprise.16 of 18 instances have no issues when it comes...
View ArticleSteps To Bring Online the Windows Cluster Of Always-On Database on DR Site If...
We have 4 servers configured in always-on availability group, two in main site and two in DR site. The file share witness server is configured in main site. 1. If main site goes down then what are the...
View ArticleCannot connect to AG name
Hi! I have a 2 node SQL 2014 Always On AG group. It has 1 database in it and fails over fine. I can can connect to the instance using the instance name of the node, but not with the AG-Group name.....
View ArticleUnderstanding Quorum majority in a Failover Cluster
Hi We have a windows cluster with 3 nodes and no witness on windows 2016 Quorum type : NODE_MAJORITY Number of Quorum Votes : 1 for each node I am simulating a DR by shutting down Node 2 and Node 3,...
View ArticleSporadic issue backing up TLog on Secondary Node in AG.
Greetings. We've got a 2012 Availability Group that has been well established for several years. We have 4 different jobs to backup Transaction Logs, each job backing up 4 databases. This will run fine...
View Articlelog backup on secondary replica not working
Hi all, I'm having a problem that I couldn't find any solution. we have jobs to back up logs on secondary replica and recently some of the databases keep failing with error:The connection to the...
View ArticleMaintenance Plans for Always On cluster
I have a couple of servers in always on high availability group with a disk quorum. The secondary is in non-readable mode. Searching for best practices or maintenance plans for this scenario didn't...
View ArticleSQL Always ON - SQL Server 2017
Hi All,I have configured Distributed Always-On from DC1 to DC2 on SQL Server 2017 Ent edition as like below.DC1 (Clust1)DB1DB2Listener Name/VIP: DC1_ListDC2 (Clust2)DB3DB4Listener Name/VIP:...
View ArticleWhat happens to the connections when a failover occurs in Always On?
Hi!Just wondering what happens in a 2 node always On AG when a manual failover occurs? Do the connections just move over to the replica node or are they terminated? Are the users even aware of the...
View ArticleAlways On
Hi Experts,From SQL 2016 Onwards on windows 2016 , is there any update wherein Windows Cluster is not required as a pre-requite for Always On.If Yes , is there any document available for itThanks
View ArticleFailsafe to avoid logins to connect to Primary in Read_Only Routing
Hi,I don't have the servers to test this currently, so posting here. So future config plan is to have read only routing on readable secondaries with connection strings having application intent set to...
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