What is high availability database?
High Availability (HA) for Cloud Databases means that Cloud Databases users can run their critical production workloads without worrying about a database becoming unavailable due to the failure of a database component.
What is database switchover?
A switchover is a role reversal between the primary database and one of its standby databases. A switchover guarantees no data loss. This is typically done for planned maintenance of the primary system.
How do I monitor high availability?
- Understand Availability and Performance SLAs.
- Implement a High Availability Environment.
- Validate Your Performance and Availability SLAs.
- Set up and Use Security Best Practices.
- Establish Change Control Procedures.
- Provide a Plan to Test and Apply Recommended Patches and Software.
- Use Proper Testing and Patching Practices.
How does a database failover work?
Failover (Activation) During this “failover” process the standby database is opened read/write changing it to a primary database. Once the standby database is opened read/write, your users (applications) can then use it. The failover process is initiated during a real disaster or severe outage.
How to achieve high availability for Oracle databases?
To achieve high availability for your solutions, you must ensure that your DB Systems have sufficient capacity. Database services on Oracle Cloud Infrastructure can dynamically scale CPU cores or database storage based on the different shapes of your Database service.
What are the different types of switchovers in Exchange Server?
There are three types of switchovers in Exchange Server: Database Switchovers. A database switchover is the process by which an individual active database is switched over to another database copy (a passive copy), and that database copy is made the new active database copy.
How to perform a server switchover in Microsoft Docs?
Click Use the specified server as the target for switchover, click Browse to select a Mailbox server, and then click save. When the switchover has completed, click close to exit the Server Switchover page. This example performs a server switchover for the server MBX1.
Where does a failover occur in a database?
A failover is an automatic activation process that can occur at the database, server, or datacenter level.