Patching SQL Server with Integration Services (SSIS) installed together with AlwaysOn Availability Group

Availability Group Upgrade in HADR Scenario

I recently ran into an issue while patching a SQL 2012 AlwaysOn Cluster. The installation of service pack 3 would fail, with the following error message(s): Database ‘SSISDB’ cannot be opened due to inaccessible files or insufficient memory or disk Continue reading Patching SQL Server with Integration Services (SSIS) installed together with AlwaysOn Availability Group