In this video you will learn following:
1- Patching AlwaysOn Availability Group replicas best practices
2- General Steps to update or Patch Availability Group replicas in SQL Server
3- Overview of Availability Group configuration in SQL Server
4- How to change Availability Group configuration setting according to best practices.
Patching/Updating best practices for AG Groups
Patching Or Updating AlwaysOn Availability group Replicas in SQL Server Best Practices
1- Patching AlwaysOn Availability Group replicas best practices
2- General Steps to update or Patch Availability Group replicas in SQL Server
3- Overview of Availability Group configuration in SQL Server
4- How to change Availability Group configuration setting according to best practices.
Patching/Updating best practices for AG Groups
1-
Make sure manual failover to one of your
synchronous commit replica is successful
2-
Take backup of your database
3-
Check consistency of your Database (DBCC) and
make sure you don’t get any error on all database involved in AG
4-
Upgrade Remote Replica (if any) first, then
local secondary replica and primary should be updated in the end to avoid any
potential application downtime
5-
Redirect your backup preferences if secondary
replica which is being updated is configured to take backups, during updates,
replica cannot perform backups
6-
Remove Automatic failover from AG to prevent unintended failover during
patching/upgrading
7-
If you have synchronous commit replica, manually
failover AG to that secondary replica, otherwise please make sure you resume
your data movement after you manually failover to asynchronous commit secondary
replicas
8-
Disable any monitoring (Alerts) during
Patching/Updating process
9-
Disable Replication if you configured
replication with AlwaysOn Availability Group Databases
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