What is mirroring in SQL Server

Adjusting the automatic failover time for sql server database mirroring.Boiled down, a mirrored database consists of a principal database on sql server instance x and an exact mirror of that database on instance y.A source database that you configure for the mirroring.From the principal server, right click the database and choose tasks | mirror or choose properties | mirroring.As per microsoft database mirroring is a solution for increasing the availability of a sql server database.

At any given time, only one copy of the database is currently available to clients.The principal database in a mirroring session can also act as the primary database in a log shipping configuration, or vice versa, as the log shipping backup share is intact.Before you mirror your database1.The sql server service is offline while a failover occurs.Combining log shipping and database mirroring.

Database mirroring architecture is more robust and efficient than database log shipping.Steps to apply a service pack or patch to mirrored sql server databases.Fixing sql server database mirroring expired certificates.The next screen asks if we want to use the witness server.Database mirroring terms and definitions.

It has automatic server failover and client failover mechanism.The process by which, when the principal server becomes unavailable, the mirror server to take over the role of principal server and brings its copy of the database online as the principal database.Database mirroring can be used in conjunction with replication to improve availability for the publication database.