How do I get the secondary (when it becomes the primary) to recognize all the logins from the primary. There is nothing in the documentation (that I noticed) that seems to address this. Any guidance would be greatly appreciated. FYI, I have used the setting of containment=TRUE but this I believe is only valid for the specific DB. Hi Brent,
I have followed your post and searched the internet but the one thing that seems to be an issue with the failover, is the SQL Logins. Why doesn’t AG seem to handle this or did I do something wrong with my setup.
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Now let’s take a moment to reflect: we’ve got a pair of Windows servers that are in the same cluster, but at this point, there are no dependencies between the SQL Server services running. If you’re planning your first AG in production, the work done up to this point is a good amount of work to tackle in one maintenance window. I would schedule all of this for the first outage, and then let things simmer down for the next week or two before assembling the Availability Group components. They can be hosting different databases, doing log shipping or mirroring between them, or have absolutely nothing in common.
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By Mary Jo Foley for All About Microsoft | December 3, 2015 — 20:50 GMT (20:50 GMT) | Topic: Windows 10.
Prior to SQL Server 2016, AG databases didn’t support DTC participation, but now, just check this box. Per Database DTC Support – The Distributed Transaction Coordinator (DTC) enables simultaneous commits across multiple SQL Servers hosted on different hardware.
You’re asking a question about something completely unrelated. There are lots of folks there ready to answer your questions. Deepak – this blog post is about SQL Server 2016’s 2-replica AGs. When you have a question about something, rather than posting it on a totally unrelated blog post, try heading over to a Q&A site like http://dba.
(Keep in mind that if your databases are large, you’ll want to set database backup compression on by default in order to speed this process – you don’t get to choose compression settings in the wizard. The Full option performs one full and one transaction log backup on the primary, then restores them over to the secondary to start the replication.
I installed a cluster with 2 Enterprise editions of SQL Server 2016. I Wonder what the differences are between Basic and “Super” Availability Groups. So, If I choose Basic Availability Group, I guess there will be a limit on replicas, even though it is Enterprise edition.
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In practice, I wouldn’t bother trying – you’re probably behind on Windows Updates, and you need to apply these prerequisite Windows patches. Even when you rehearse it in a lab, it’s not unusual to run into several restarts-and-check-again-for-updates in the wild, or brief outages to. Because of that, I’d schedule a separate (long) maintenance window to get up to speed on Windows patches, the latest SQL Server updates, and do the first few steps.
Because after creating cluster, i saw that Fail-over occurred between 2 nodes. For example, after i stop EC2 which is the 1st node, then the other EC2 went online. So basically, my app could connect to this 2nd node using the domain name which my 2 nodes joined. – I didn’t notice that i need to create the Availability Group. I combined this with Merge Replication so i can even read/write in both database inside 2 nodes and replicated between them.