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NetVault Plug-in for MySQL 4.4 - User Guide

Introducing Dell™ NetVault™ Backup Plug‑in for MySQL Installing and removing the plug-in Configuring the plug-in Backing up data Restoring data Working with native MySQL replication Using the plug-inin a Failover Cluster environment Troubleshooting About Dell

Performing a backup

A backup using Plug‑in for MySQL includes the steps outlined in the following sections.
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Selecting data for a backup
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Setting backup options
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Finalizing and submitting the job
Selecting data for a backup
You must use sets (Backup Selection Set, Backup Options Set, Schedule Set, Target Set, and Advanced Options Set) to create a backup job.
Backup Selection Sets are essential for Incremental and Differential Backups. You must create the Backup Selection Set during a Full Backup, and use it for Full, Incremental, and Differential Backups. The backup job will report an error if you do not use a Selection Set for the Incremental or Differential Backup. For more information, refer to the Dell NetVault Backup Administrator’s Guide.
To create a Backup Selection Set
1
In the Navigation pane, click Create Backup Job.
You can also start the wizard from the Guided Configuration link. In the Navigation pane, click Guided Configuration. On the NetVault Configuration Wizard page, click Create backup jobs.
2
In Job Name, specify a name for the job.
Assign a descriptive title that lets you easily identify the job for monitoring its progress or restoring data. The job name can contain alphanumeric and non-alphanumeric characters, but it cannot include non-English characters. On Linux, the names can have a maximum of 200 characters. On Windows, there is no length restriction. However, a maximum of 40 characters is recommended on all platforms.
3
Click Create New next to the Selections list.
4
On the NetVault Backup Selections page, enter a name for the set in the Backup Selection Set box, and then open the NetVault Backup Client on which the plug-in is installed.
5
In the list of plug-ins, open Plug‑in for MySQL to display the MySQL Servers.
6
Select the applicable data:
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To include all MySQL databases in the selected instance in the backup job, select the All Databases node.
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For a more granular selection, open the All Databases node to display the individual databases. In addition, you can open each individual database to display its individual tables, which can be selected as desired for inclusion in a backup job.
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To explicitly omit items from a backup, select a parent-level item, and click the applicable child-level item to replace the green check mark with a red “X” (cross), which marks it as omitted.
 
 
*IMPORTANT: If you select a granular set of data for backup with the MySQL Standard/Community option, you must select Individual Database/Table Copy Only as the backup type on the Backup Options tab. If any other form of backup is selected (that is, Full, Incremental, or Differential Backup), granular selections will be ignored, and the entire database will be backed up.For MySQL 5.0.x and later, stored procedures, functions, and triggers are automatically backed up with Full and Individual Database/Table Copy Only backups for the MySQL Standard/Community option.

For MySQL 5.0.x and later, the “information_schema” database will be displayed in the selection tree but it will not available for selection. This is because all the data contained in this database is generated dynamically, and does not exist in any permanent sense. Therefore, the plug-in automatically excludes the information_schema database from all backups.
7
Click Save to save the set.
To use an existing Backup Selection Set
1
In the Navigation pane, click Create Backup Job.
You can also start the wizard from the Guided Configuration link. In the Navigation pane, click Guided Configuration. On the NetVault Configuration Wizard page, click Create backup jobs.
2
In the Selections list, select an existing Backup Selection Set.

Setting backup options

The next step involves creating the Backup Options Set or selecting an existing one. The settings available on the Backup Options tab depend on whether you use the MySQL Standard/Community or MySQL Enterprise Backup option.
Setting backup options for MySQL Standard/Community
With the applicable items selected for backup, you can select the type of backup to perform and select a different behavior in case of failure.
To create a Backup Options Set
1
Click Create New next to the Plugin Options list.
2
Select the applicable option:
 
 
*IMPORTANT: If you specified the target instance of MySQL as a “Replication Master Instance” (that is, the Enable MySQL Replication and Master Instance options were selected in the Configure dialog for this instance), the Full, Incremental, and Differential forms of backup will be unavailable for selection. For more information, see Working with native MySQL replication.
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Full Backup for All Databases (default selection) – To perform a complete backup of every database included in the current MySQL Instance, select this option.
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Incremental Backup – To back up only the transaction logs that were generated since the last Full or Incremental Backup, select this option.
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Differential Backup – To back up all the transaction logs that have been generated since the last Full or Incremental Backup, select this option. Each time a subsequent Differential is performed, it will contain all Binary Log files generated since the original Full was performed. After the backup is finished, the Binary Logs will be kept on the MySQL Instance.
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Individual Database/Table Copy Only – To create a special-purpose copy of a MySQL environment that will not affect the overall backup and restore procedures for the database (for example, creating a test environment), select this option. When used, these copy backups will not affect the sequence established by a Full and Incremental/Differential MySQL backup scenario (that is, these backups have no affect on Binary Log records). This form of backup is independent of what should be established as a normal sequence of backups through the use of a Full and Incremental/Differential MySQL backup scenario. In addition, a copy backup cannot be used as a replacement for a Full Backup.
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Lock All Tables with Read Access… – If you selected Full Backup and you want to prevent the loss of transactions by locking all the databases in the instance that currently have read-only access, select this check box. When this option is selected, users will be unable to insert, update, or delete data across the entire instance while the Full Backup is in progress. When this option is cleared, Plug‑in for MySQL locks each table during the backup process only when the table is being backed up; therefore, if the instance contains tables that are related, Dell strongly recommends that you select this option to ensure that all tables are locked during the process.
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Purge Binary Logs… – This option is selected by default if Enable MySQL Replication is not selected and Enable Point-In-Time Recovery is selected. Dell recommends that you use this option, but you can decide how much control you want over the binary logs.
3
Select the applicable action for each condition (for more information, see Setting default actions for error conditions (optional)).
Each of these conditions lets select an action to take for this job, even if you set default actions that are different:
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Complete with Warnings - Saveset Retained – The job returns a status of “Backup Completed with warnings” and a backup saveset is created that includes the items that were successfully backed up.
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Complete without Warnings - Saveset Retained – The job completes and returns a status of “Backup Completed” and a backup saveset is created that includes the items that were successfully backed up.
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Fail - Saveset Retained – The job returns a status of “Backup Failed.” However, a backup saveset is generated that includes the items that were successfully backed up.
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Fail - No Saveset Retained – The job returns a status of “Backup Failed” and no saveset of backed up objects is kept.
4
In the Mysqldump options box, list the command options that you want the mysqldump utility to use for the job.
The options must begin with a dash or double-dash, and they cannot contain invalid characters (; | < >).
These options are added to the mysqldump command first, followed by the options generated internally by the plug-in. Because of this, an option that you enter here that contradicts one generated internally will be overridden by the one generated by the plug-in.
Errors detected by mysqldump that cause the job to fail will be embedded in the error log message in the job log.
If you previously set up MySQL Option files to accomplish this task, the options that you enter here are appended to the options specified in the Option files. If you want the plug-in to ignore existing MySQL Option files, enter --no-defaults as the first option in this box.
For information on the options supported by your version of mysqldump, refer to the applicable MySQL documentation.
 
 
*WARNING: Be aware that you should not use the --routines (-R) or --triggers option with this feature. (Using these options interferes with backups of database tables, and while backups will succeed, restores might fail.) If there are stored procedures and triggers that need to be backed up for a database, the plug-in will generate mysqldump commands internally with the --routines and ‑‑triggers options.
5
Click Save to save the set.
6
In the Create New Set dialog, specify a name for the set, and click Save.
The name can contain alphanumeric and non-alphanumeric characters, but it cannot include non-English characters. On Linux, the names can have a maximum of 200 characters. On Windows, there is no length restriction. However, a maximum of 40 characters is recommended on all platforms.
To use an existing Backup Options Set
In the Plugin Options list, select the existing Backup Options Set that you want to use.

Setting backup options for MySQL Enterprise Backup

With the applicable items selected for backup, you can select the type of backup to perform and select a different behavior in case of failure.
To create a Backup Options Set
1
Click Create New next to the Plugin Options list.
2
Select the applicable option:
•
Full Backup (default selection) – To back up every database and table selected in the current MySQL Instance, select this option.
•
Incremental Backup – To back up only the data (for InnoDB tables) or complete tables (for non-InnoDB tables) changed since the last Full or Incremental Backup, select this option.
3
Click Save to save the set.
4
In the Create New Set dialog, specify a name for the set, and click Save.
The name can contain alphanumeric and non-alphanumeric characters, but it cannot include non-English characters. On Linux, the names can have a maximum of 200 characters. On Windows, there is no length restriction. However, a maximum of 40 characters is recommended on all platforms.
To use an existing Backup Options Set
In the Plugin Options list, select the existing Backup Options Set that you want to use.

Finalizing and submitting the job

To finalize and submit a backup job
1
Use the Schedule, Target Storage, and Advanced Options lists to configure any additional required options.
2
Click Save or Save & Submit, whichever is applicable.
 
 
*TIP: To run a job that you have already created and saved, select Manage Job Definitions in the Navigation pane, select the applicable job, and click Run Now.
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