Dropping the Availability Group will remove all associated objects . 1.Database (s) will be removed from AG databases 2.Listener will be deleted (object will be dropped from Active Directory). 3.Replicas will be removed from the AG group configuration USE [master] GO DROP AVAILABILITY GROUP [AG Group Name] GO Dropping Availability Group USE [master] GO ALTER […]
With every release of Microsoft SQL Server , SQL Server Management Studio has improved a lot and many new feature were added. AlwaysOn Dashboard is one of them which come with SQL Server 2012 and later. To access the AlwaysOn Dashboard Right click the [AlwaysOn High Availability] folder or Right Click the Availability Group […]
We recently configured Always On AG group and Listeners , using T-SQL we added a Replica which fails to join the AG Group Evey time we try to join the AG Group it fails with “The Service Broker endpoint is in disabled or stopped state.” which is unrelated and misleading. To get to the root of […]
Monitoring alwayson Log Send Queue and Redo Queue DMV’s sys.dm_hadr_database_replica_states & sys.availability_replicas provided the information on log send queue and redo Queue size SELECT DB_NAME(database_id) AS dbname,ar.replica_server_name, CASE drs.is_local WHEN 0 THEN ‘REMOTE’ ELSE ‘LOCAL’ END AS is_local, drs.last_hardened_time, drs.log_send_queue_size / 1024 AS MB_log_SendQueueSize, drs.log_send_rate / 1024 AS MB_log_send_rate, drs.redo_queue_size / 1024 AS MB_redo_queue_size, drs.redo_rate / 1024 […]
By default Enable-SqlAlwaysOn try to restart the sql server service if -NoServiceRestart option is not used.With -NoServiceRestart will make changes in the registery but it will only take effect once the Services re recycled. –Standalone sql instance Enable-SqlAlwaysOn -Path SQLSERVER:hostname or instance name in case of named instance -NoServiceRestart –Clustered Instance Enable-SqlAlwaysOn -Path SQLSERVER:SQLInstance Name […]
Get Availability group information T-SQL : GO select name,group_id,health_check_timeout from master.sys.availability_groups GO Get Availability group Replica information T-SQL : go select replica_server_name,create_date, modify_date,endpoint_url,read_only_routing_url,avalibility_mode, failover_mode,session_timeout,backup_priority from master.sys.avalibility_replicas go Get Availability group databases T-SQL : select database_name,is_failover_ready,is_pending_secondary_suspend,is_database_joined from master.sys.dm_hadr_database_replica_cluster_states go select * from sys.dm_hadr_database_replica_states go Get Availability group listeners T-SQL: go select * from sys.availability_group_listeners go […]
Adding Secondary Replica :Connect SecondaryReplica use [master] GO GRANT CONNECT ON ENDPOINT::[Mirroring_Endpoint] TO [DBPROXadministrator] GO :Connect PrimaryReplica IF (SELECT state FROM sys.endpoints WHERE name = N’Mirroring_Endpoint’) <> 0 BEGIN ALTER ENDPOINT [Mirroring_Endpoint] STATE = STARTED END GO use [master] GO GRANT CONNECT ON ENDPOINT::[Mirroring_Endpoint] TO [DBPROXadministrator] GO :Connect PrimaryReplica IF EXISTS(SELECT * FROM sys.server_event_sessions WHERE […]
Availability Group Listener Configuration An availability group listener is a virtual network name (VNN) to which clients can connect in order to access a database in a primary or secondary replica of an AlwaysOn availability group. An availability group listener enables a client to connect to an availability replica without knowing the name of the […]
Enable AlwaysOn and Configure Availability Group with Primary Replica # Check Always On is enabled # Enable always on if not enabled. #SQL Server services should be recycled (Stopped and started) #Check AlwaysOn is Enabled. #Create Database Mirroring Endpoint @ Primary SQL Instance #Create Database Mirroring Endpoint @ Secondary SQL Instance #Create Availability Group with […]