Learn Microsoft SQL Server AlwaysOn HA Solution (Udemy.com)
A Complete Course on Setup,Configure and Manage Microsoft SQL Server AlwaysOn High Availaibility Solution
Created by: Mohammad Sufian
Produced in 2017
What you will learn
- Create 2 Node Windows Failover Cluster
- Install SQL Server 2016 using GUI & Command Line
- Configure Installed SQL Server Instance for AlwaysOn High Availability
- Create and Configure Availability Grpoups
- Add Database to Availability Group & Replica
- Create and Configure AlwaysOn Availability Group Listener
- Failover Availability Group (Automatic , Manual &Force)
- Configure Backup on Availability Group & Replica
- Monitor AlwaysOn Availability Groups State & Data Syncronization
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Course Description
Learn how toSetup,Configure and Monitor Microsoft SQL Server AlwaysOn feature.
Always On Availability Groups (SQL Server).
Anavailability groupsupports a failover environment for a discrete set of user databases, known asavailability databases, that fail over together. An availability group supports a set of primary databases and one to eight sets of corresponding secondary databases. Secondary databases arenotbackups. Continue to back up your databases and their transaction logs on a regular basis.
Each set of availability database is hosted by anavailability replica. Two types of availability replicas exist: a singleprimary replica. which hosts the primary databases, and one to eightsecondary replicas, each of which hosts a set of secondary databases and serves as a potential failover targets for the availability group. An availability group fails over at the level of an availability replica. An availability replica provides redundancy only at the database levelfor the set of databases in one availability group. Failovers are not caused by database issues such as a database becoming suspect due to a loss of a data file or corruption of a transaction log.
The primary replica makes the primary databases available for read-write connections from clients. Also, in a process known asdata synchronization, which occurs at the database level. The primary replica sends transaction log records of each primary database to every secondary database. Every secondary replica caches the transaction log records (hardensthe log) and then applies them to its corresponding secondary database. Data synchronization occurs between the primary database and each connected secondary database, independently of the other databases. Therefore, a secondary database can be suspended or fail without affecting other secondary databases, and a primary database can be suspended or fail without affecting other primary databases.
Optionally, you can configure one or more secondary replicas to support read-only access to secondary databases, and you can configure any secondary replica to permit backups on secondary databases.
Deploying Always On Availability Groups requires a Windows Server Failover Clustering (WSFC) cluster. Each availability replica of a given availability group must reside on a different node of the same WSFC cluster. The only exception is that while being migrated to another WSFC cluster, an availability group can temporarily straddle two clusters.
A WSFC resource group is created for every availability group that you create. The WSFC cluster monitors this resource group to evaluate the health of the primary replica. The quorum for Always On Availability Groups is based on all nodes in the WSFC cluster regardless of whether a given cluster node hosts any availability replicas. In contrast to database mirroring, there is no witness role in Always On Availability Groups.
Who this course is for:
This course is targeted for student who have some level of understanding with Microsoft SQL Server (Any version)SQL Server Database Administrator and Developers
Always On Availability Groups (SQL Server).
Anavailability groupsupports a failover environment for a discrete set of user databases, known asavailability databases, that fail over together. An availability group supports a set of primary databases and one to eight sets of corresponding secondary databases. Secondary databases arenotbackups. Continue to back up your databases and their transaction logs on a regular basis.
Each set of availability database is hosted by anavailability replica. Two types of availability replicas exist: a singleprimary replica. which hosts the primary databases, and one to eightsecondary replicas, each of which hosts a set of secondary databases and serves as a potential failover targets for the availability group. An availability group fails over at the level of an availability replica. An availability replica provides redundancy only at the database levelfor the set of databases in one availability group. Failovers are not caused by database issues such as a database becoming suspect due to a loss of a data file or corruption of a transaction log.
The primary replica makes the primary databases available for read-write connections from clients. Also, in a process known asdata synchronization, which occurs at the database level. The primary replica sends transaction log records of each primary database to every secondary database. Every secondary replica caches the transaction log records (hardensthe log) and then applies them to its corresponding secondary database. Data synchronization occurs between the primary database and each connected secondary database, independently of the other databases. Therefore, a secondary database can be suspended or fail without affecting other secondary databases, and a primary database can be suspended or fail without affecting other primary databases.
Optionally, you can configure one or more secondary replicas to support read-only access to secondary databases, and you can configure any secondary replica to permit backups on secondary databases.
Deploying Always On Availability Groups requires a Windows Server Failover Clustering (WSFC) cluster. Each availability replica of a given availability group must reside on a different node of the same WSFC cluster. The only exception is that while being migrated to another WSFC cluster, an availability group can temporarily straddle two clusters.
A WSFC resource group is created for every availability group that you create. The WSFC cluster monitors this resource group to evaluate the health of the primary replica. The quorum for Always On Availability Groups is based on all nodes in the WSFC cluster regardless of whether a given cluster node hosts any availability replicas. In contrast to database mirroring, there is no witness role in Always On Availability Groups.
Who this course is for:
This course is targeted for student who have some level of understanding with Microsoft SQL Server (Any version)SQL Server Database Administrator and Developers
Instructor Details
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Mohammad Sufian
Iam a Solutions Engineerproviding Infrastructure,Application anddatabasesolutions for Web, Mobile and Desktop applications .I have worked as a Production MS SQLDatabase Administrator and Consultantfor over +10 years for various companies such as EXL Services, Citagus, Saudi Fransi Bank, Microsoft, Barclaysand IHSMarkit. Ilove to learn and share different technologies with others.
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