what's primary diference bwteen Always on availability groups and Always on...
We plan to use SQL Server 2016 Standard to configure Always on Basic availability groups that support with this edition. However, we are not clear what are primary diference and limitations of Always...
View ArticleAlwayOn Failover Issue
If Network adapter fails in AlwaysOn Primary Server.Does it trigger failover AlwaysOn AG form Primary to Secondary node in Synchronos Mode?
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Changing node votes
I was reviewing the configuration of a SQL AO AG yesterday and noticed that someone had changed the votes on 2 of the nodes. I am trying to figure out why this would have been done and what the results...
View ArticleSQL2k12 Crashed During Restart
Hello,SQL2k12, Ent ed 11.0.7469.6 (X64) running on Win2k8 OS. Does not happen all the time. This morning, after windows patching successfully, when the service tried to start I suppose, it crashed....
View ArticleSQL 2014 and SQL 2016 AG restore steps best option for local and DR solutions.
I am wanting to restore a database to SQL 2014/2016.Can you remove all user databases from a AG group and still have a viable AG group?In others words, can we readd database to an empty AG group?Also...
View ArticleSQL Always On
Dears,We want to configure SQL AlwaysOn between two sites, but we have some limitations please advise if the below scenario works:I read a thread where its saying that SQL 2014 standard supports SQL...
View ArticleAlways On FCI on workgroup clusters in WS2016
Hi, I have questions about SQL FCI (Failover Cluster Instances) on Workgroup clusters in WS2016.I've read the following blogs about WS2016 workgroup clusters....
View ArticleMultiSubnet Stretch Cluster configuration with Windows Server 2016
We are planning to setup a 3 node Multi subnet AAG between 2 datacenters. Our primary datacenter is Washington DC and DR is San Jose. These are my inital thoughts. If I missed anything or if any other...
View ArticleAutomatic Seeding Failures
HiWe are running a two Server Always On HADR system with enabled Automatic Seeding. Both SQL Servers are Microsoft SQL Server Enterprise (64-bit) with Build 14.0.3029.16 and both are running on Windows...
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Always on Readable secondary.
i am trying to change the Readable secondary option to YES, but it does not give option the only option available is NO,please assist,k
View ArticleConfigure SQL Server AlwaysOn Availability Group on a Multi-Subnet Cluster
Hi All,Configured SQL Server Always On Availability Group on a Multi-Subnet Cluster. Now we have to setup the backup strategy . on which server we have to run the backup jobs either primary or...
View Articlehow to understand HADR_AR_CRITICAL_SECTION_ENTRY
Hi,I found many times today, if there are two large databases are in recovery status(trying to catch up in availability group), the other databases needs recovery will be waiting.The full story is I am...
View ArticleDistributed availability groups
can we have load balancing across replicas in distributed AG I know we can have in Always on Availability Group but distributed Availability Group it is not working between the distributed sites. is...
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HADR_AR_CRITICAL_SECTION_ENTRY waits during failover.
Hey guys, how are you?I got a huge wait for this on a failover (90min):Does anybody could help understanding what needs to be written and where?It is not clear to me what really is runtime state and...
View Articleone listener for two availability groups
i have Basic availability gorup, i have one listener and working with AG1,now i have second AG2 and i need to same listerner, not sure how to.please assist.k
View ArticleAG databases went into 'Synchronizing/In recovery' after upgrading to 2014
We have 3 replica AG setup. 2 replicas are in sync/automatic failover, the other(DR Server, different subnet) in asynchronous/manual mode…All these replicas were on sql server 2012, Recently we...
View ArticleIs the any issue with sql 2012 (sp3 cu10) alwayson and vmware vmotion ?
Best regards,I found it instable after a vmotion.lumiga.
View ArticleMain Site using SQL Cluster, need AlwaysOn for DR
Hi All,At my HQ I'm using 2 node configured SQL failover cluster SQL Server 2012 SP3 multiple instance (Active - Active)I want to build 1 node at DR site running on top SQL Server 2016, but I want to...
View ArticleSync_logins stored proc does not work in Always On
hi,On a daily basis at 2:00 AM this sp is executed regardless a failover happened or not and most of times I am receiving errors:I find three casusitry 1-Could not drop login domain\user as the user is...
View ArticleSSAG Database regularly falls in either "Not Synchronizing" or "Restoring"...
Hello,I’ve setup my new SCOM 1807 lab with my databases (OperationsManager&OperationsManagerDW) in 2 independent SQL Server 2016 Always On Availability groups. Here are the variables behind my...
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