Create multiple Basic Availability Group SQL 2016 standard edition

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Create multiple Basic Availability Group SQL 2016 standard edition

EasyBoy

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Points: 5301
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December 9, 2016 at 9:29 am

#401188

Hello,
I have a quick question regarding to BAG in SQL server 2016 standard edition. Can i create multiple BAG with multiple databases and fail-over using multiple listener? Or is there any other way to fail-over multiple BAG at the same time?

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Lowell SSC Guru Points: 323504 More actions · Answer 1

pretty sure standard edition featureing multiple Basic Availability Group is supported, and if you have multiple databases, that kind of forces you into having to design one db per group.

this link has someone asking the similar question:

http://dba.stackexchange.com/questions/148388/multiple-basic-availability-groups-and-performance-sql-server/148390

Lowell

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EasyBoy SSCertifiable Points: 5301 More actions · Answer 2

Thanks Lowell for your response. But, this article is quit different than our requirement.

Here is an example:

3 databases in 3 AG.

TestAG1, TestAG2 and TestAG3.

I need a script which will monitor all of the AG's and if one of the AG get failed i need to fail over all AG's to other node.

Swarndeep SSCrazy Points: 2347 More actions · Answer 3

You may check the status using sys.dm_hadr_database_replica_cluster_states.

Fail over can be automated in multiple ways like from T-SQL and PowerShell.

From T-SQL

ALTER AVAILABILITY GROUP <AG> FAILOVER
OR
ALTER AVAILABILITY GROUP <AG>FORCE_FAILOVER_ALLOW_DATA_LOSS

From PowerShell:

Switch-SqlAvailabilityGroup -Path SQLSERVER:\Sql\SecondaryServer\InstanceName\AvailabilityGroups\<AG>
or
Switch-SqlAvailabilityGroup -Path SQLSERVER:\Sql\SecondaryServer\InstanceName\AvailabilityGroups\<AG> -AllowDataLoss

This page has more information on this: https://msdn.microsoft.com/en-us/library/hh231018.aspx

Swarndeep

http://talksql.blogspot.com