Contents
- 1 What things must be prepared before carrying out database mirroring?
- 2 Which of the following script will backup the database required for database mirroring?
- 3 How do I Mirror a database in SQL Server 2012?
- 4 What are the requirements for mirroring a database?
- 5 How does mirror server work in SQL Server?
- 6 How can I back up MY SQL Server transaction log?
What things must be prepared before carrying out database mirroring?
To prepare a database for mirroring, you need to perform the following steps:
- Script the restore of the latest full database backup.
- Script the restore of every transaction log backup that has been made after that full database backup.
- Copy the full database backup and transaction log backups to the mirror server.
Which of the following script will backup the database required for database mirroring?
Which of the following script will backup the database requires for database mirroring? Explanation: You have to backup the database and transaction on the principal server for database mirroring.
How do I Mirror a database in SQL Server 2012?
How to Configure Database Mirroring for SQL Server
- Connect to the primary server.
- Ensure the database is at Full recovery model.
- Enable database mirroring.
- Configure database mirroring security.
- Define whether or not a witness server is used for automatic failover.
Why database mirroring is required?
Database Mirroring is used to move the database transactions from one SQL Server database (Principal database) to another SQL Server database (Mirror database) on a different instance. In SQL Server Log Shipping and Mirroring can work together to provide solutions for high availability and disaster recovery.
Is the transaction log caused by Database mirroring?
For information on establishing Database Mirroring please refer to this link: http://msdn.microsoft.com/en-us/library/ms190941 (v=sql.110).aspx . In addition, I created a small script that inserts data into a table to fill up the transaction log.
What are the requirements for mirroring a database?
Requirements The principal and mirror server instances must be running on the same version of SQL Server. The principal and mirror server instances must be running on the same edition of SQL Server. The database must use the full recovery model. The name of the mirror database must be the same as the name of the principal database.
How does mirror server work in SQL Server?
The mirror server applies these log records in sequence as quickly as possible. There are two operating modes that dictate how SQL Server manages the way the principal and mirrored databases handle the transactions.
How can I back up MY SQL Server transaction log?
Take at least one log backup on the principal database. For more information, see Back Up a Transaction Log (SQL Server). On the mirror database, use RESTORE WITH NORECOVERY to restore all log backups taken on the principal database since mirroring was removed. For more information, see Restore a Transaction Log Backup (SQL Server).