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SQL Server AlwaysOn

SQL Server AlwaysOn. Phil Brammer, Database Administrator. SQL Server AlwaysOn. Phil Brammer

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SQL Server AlwaysOn

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  1. SQL Server AlwaysOn Phil Brammer, Database Administrator

  2. SQL Server AlwaysOn Phil Brammer Database administrator and a seventh year Microsoft MVP in SQL Server and a Microsoft Certified Solutions Expert. He has over 13 years’ data management experience in various technologies from reporting through ETL to database administration. Currently he manages nearly 200 SQL databases instances from gigabytes to multiple terabytes in size and is responsible for setting the vision for Blue Cross and Blue Shield of Nebraska's database architectural roadmap. He is very active in the Microsoft SQL Server community and has contributed to books, SQL Saturdays, SQL PASS Summits, and local user groups.

  3. Terminology • AlwaysOn Availability Groups • AlwaysOn Failover Cluster Instances (FCIs) • Replicas and Roles • Availability Group Listener • Application Intent

  4. Setup Clustering • Install Clustering • Create Cluster • Add Nodes • Cluster Validation Report

  5. Setup SQL for AlwaysOn • Use SQL Configuration Manager • Use Powershell • get-item . | select IsHadrEnabled • Enable-SqlAlwaysOn -Path SQLSERVER:\SQL\Computer\Instance

  6. Create Availability Group • Create database in full recovery • Setup fileshare for backup/restores • Use Wizard • Use Powershell • Use T-SQL • *AG Listener creation will likely fail • Need to set Active Directory permissions

  7. Direct Read-Only Traffic • Define Roles • READ_ONLY_ROUTING_URL • READ_ONLY_ROUTING_LIST • Application_Intent=ReadOnly

  8. Perform Backups • Offload Backups • Set Backup Priorities • sys.fn_hadr_backup_is_preferred_replica

  9. Resources • Microsoft SQL Server High Availabilityhttp://www.microsoft.com/en-us/sqlserver/solutions-technologies/mission-critical-operations/high-availability.aspx • AlwaysOnSolutions Guidehttp://download.microsoft.com/download/D/2/0/D20E1C5F-72EA-4505-9F26-FEF9550EFD44/Microsoft%20SQL%20Server%20AlwaysOn%20Solutions%20Guide%20for%20High%20Availability%20and%20Disaster%20Recovery.docx

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