The world's most popular open source database
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It is important to back up your databases in case problems occur so that you can recover your data and be up and running again. MySQL offers a variety of backup strategies from which you can choose to select whatever methods best suit the requirements for your installation.
Briefly summarized, backup concepts with which you should be familiar include the following:
Logical versus physical backups
Online versus offline backups
Local versus remote backups
Snapshot backups
Full versus incremental backups
Point-in-time recovery
Backup scheduling, compression, and encryption
Table maintenance
Additional resources
Resources related to backup or to maintaining data availability include the following:
A forum dedicated to backup issues is available at http://forums.mysql.com/list.php?93.
The syntax of the SQL statements described here is given in Chapter 12, SQL Statement Syntax.
Details for mysqldump, mysqlhotcopy, and other MySQL backup programs can be found in Chapter 4, MySQL Programs.
For additional information about InnoDB
backup procedures, see Section 13.6.6, “Backing Up and Recovering an InnoDB Database”.
Replication enables you to maintain identical data on multiple servers. This has several benefits, such as allowing client load to be distributed over servers, availability of data even if a given server is taken offline or fails, and the ability to make backups using a slave server without affecting the master. See Chapter 16, Replication.
MySQL Cluster provides a high-availability, high-redundancy version of MySQL adapted for the distributed computing environment. See Chapter 17, MySQL Cluster NDB 6.X/7.X. For information specifically about MySQL Cluster backup, see Section 17.5.3, “Online Backup of MySQL Cluster”.
Distributed Replicated Block Device (DRBD) is another high-availability solution. It works by replicating a block device from a primary server to a secondary server at the block level. See Chapter 14, High Availability and Scalability


User Comments
The correct forum link is http://forums.mysql.com/list.php?28
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