In general, NetVault supports the following features:
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To back up your data, you must create and submit a backup job. The NetVault WebUI provides a configuration wizard that helps you to perform this task. You can run the wizard from the Guided Configuration or Create Backup Job link in the Navigation pane.
A backup job definition includes the following components:
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Source device options (available only to the Plug-in for Consolidation, Plug-in for Data Copy, and Secondary Copy jobs) |
These components are stored in NetVault Sets. For more information about NetVault Sets, see About NetVault Sets.
Backup indexes stored in the NetVault Database are called Online Indexes. Online indexes allow you to quickly scan through the contents of a saveset without loading the media.
Currently, the NetVault Plug-in for FileSystem supports snapshot-based backups.
To create and use persistent snapshots, the data that you want to back up must reside on supported disk arrays. For more information about OS versions, plug-in versions, and disk arrays that support persistent snapshots, see the Quest NetVaultCompatibility Guide.
You can specify generation- and time-based retirement methods for backups:
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Generation-based backup retirement: This method specifies the maximum generation count for a Full Backup (that is, the maximum number of Full Backups that are retained for the same data set). Generation-based retirement can only be set for Full Backups. When the number of Full Backups exceeds the specified generation count, the oldest Full Backup is retired. |
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Time-based backup retirement: This method specifies the length of time a backup is retained. You can specify the retirement age for backups in number of days, weeks, or years. A backup is retired when the retirement age is reached. Time-based retirement can be set for all backup types (that is, Full, Incremental, and Differential). |
If a backup has any dependent backups, you can use the following rules to delete the backup series:
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Retire all backups when the last backup is retired: By default, the retirement of a backup series is deferred until all backups from this series are ready for retirement. The backups from an Incremental series or a Differential series are retired when the last dependent backup from the series is retired. |
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Retire all backups when the first backup is retired: NetVault lets you modify the retirement behavior to retire a backup series when the first backup is retired. When this rule is applied, the backups from an Incremental series or a Differential Series are retired when the first backup from the series is retired. |
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Use the Retirement Timing Control settings to change the default behavior for all backups |
The following examples illustrate the retirement behavior for different backup series:
Depending on the retirement rule that is applied, the backups are retired as follows:
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Retire all backups when the last backup is retired: When you apply this rule, all backups from this series are retired on Day 15. |
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Retire all backups when the first backup is retired: When you apply this rule, all backups from this series are retired on Day 8. |
Full Backup <- Differential Backup 1
Full Backup <- Differential Backup 2
Full Backup <- Differential Backup 3
Full Backup <- Differential Backup 4
Full Backup <- Differential Backup 5
Full Backup <- Differential Backup 6
Depending on the retirement rule that is applied, the backups are retired as follows:
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Retire all backups when the last backup is retired: When you apply this rule, the backups from this example are retired as follows: |
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Retire all backups when the first backup is retired: When you apply this rule, all backups from this example are retired on Day 8. |
Full Backup <- Incremental Backup 1 <- Incremental Backup 2
Full Backup <- Differential Backup 1 <- Incremental Backup 3 <- Incremental Backup 4
Full Backup <- Differential Backup 2
Depending on the retirement rule that is applied, these backups are retired as follows:
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Retire all backups when the last backup is retired: When you apply this rule, the backups from this example are retired as follows: |
Differential Backup 1, Incremental Backup 3, and Incremental Backup 4 |
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Retire all backups when the first backup is retired: When you apply this rule, all backups from this example are retired on Day 8. |
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