Quick Start Example

This section shows a simple example configuration of the Zmanda Recovery Manager (ZRM) for MySQL to perform backup, recovery and reporting. This example backs up all databases in a MySQL server using ZRM for MySQL running locally to the MySQL server.

Assumptions

• The /var/lib/mysql-zrm directory has sufficient space to contain all backup images for all the MySQL databases on the server.
• The MySQL database has been installed from rpms provided by MySQL.
• The MySQL database server daemon (mysqld) has been started and is running on the server using the default TCP port (3306)
• The MySQL application that uses the database has been configured on the server.
• The MySQL database user account mysqlbackup is entered the MySQL my.cnf option file. The option file is located in $MYSQL_HOME/my.cnf. For example:

[client]
# The following password will be sent to all standard MySQL clients
user=mysqlbackup
password="mysqlbackup_password"

• Consult the MySQL reference manual for more information on the MySQL option files.
• Consult the MySQL backup user section on how to configure a MySQL user mysqlbackup.
• ZRM for MySQL has been installed on the server.
• All ZRM for MySQL commands must be run as the mysql operating system user.

Configure ZRM for MySQL

No configuration of ZRM for MySQL is required to do full raw backups of all databases in the MySQL server. By default, all MySQL databases that are accessible to the MySQL server are backed up as a part of the backup set.

For incremental backups:

• Restart the MySQL server (mysqld) with binary logs enabled.
• Add --log-bin option to mysqld in /etc/init.d/mysqld script.
• Consult binary logs section for configuring binary logs.

Consult Backup Sets section for more details.

Schedule MySQL Database Backups

The mysql-zrm-scheduler utility helps you to schedule automatic periodic backups of the databases.

Start by doing an immediate backup

$ mysql-zrm-scheduler --now --backup-set dailyrun --backup-level 0

A backup set dailyrun is created and backups are done to the /var/lib/mysql-zrm/dailyrun directory.

Next schedule weekly full backups on Sunday at 2 AM:

$ mysql-zrm-scheduler --interval weekly --backup-set dailyrun --start 02:00

Consult the Daily/_Weekly/_Monthly_Schedules section for more complex backup scheduling.

Generate Backup Status Reports

The mysql-zrm-reporter utility generates many predefined and user defined reports on backup runs. Use it to generate status report as under:

  $  mysql-zrm-reporter --where backup-set=dailyrun --show backup-status-info
  backup_set  backup_date                             backup_level  backup_status         comment
  ----------------------------------------------------------------------------------------------------
  dailyrun    Sun 10 Sep 2006 02:15:23 AM PDT         0             Backup succeeded      ----
  dailyrun    Sun 17 Sep 2006 02:16:43 AM PDT         0             Backup succeeded      ----

Consult the Backup reports section of ZRM for MySQL for more complex reports.

Restore MySQL Database

Restoration of backups is done in two steps:

Step 1

Identify the backup image to be restored. Run a backup report (restore-full-info) to find out all backup images that are available:

$  /usr/bin/mysql-zrm-reporter -show restore-info --where backup-set=dailyrun
    backup_set  backup_date             backup_level  backup_directory
   -------------------------------------------------------------------------------------------
    dailyrun    Sun 10 Sep 2006                      0  /var/lib/mysql-zrm/dailyrun/
                02:15:23 AM PDT                         20060910021523
    dailyrun    Sun 17 Aug 2006                      0  /var/lib/mysql-zrm/dailyrun/
                02:16:43 AM PDT                         20060917021643

Step 2

Use the mysql-zrm utility to restore the database from the full backup image.

$ mysql-zrm --action restore --backup-set dailyrun \
 --source-directory /var/lib/mysql-zrm/dailyrun/20060917021643
MySQL server has been shutdown. Please restart after verification.

Consult the restoration section for more details on MySQL database recovery.