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  1. Home
  2. NetBackup™ NAS Administrator's Guide
  3. Section II. Using NAS-Data-Protection (D-NAS)
  4. Configuring Storage Lifecyle Policies for D-NAS
  5. Backup from snapshot operation in an SLP
NetBackup™ NAS Administrator's Guide

Backup from snapshot operation in an SLP

Use the Backup from snapshot operation to create a tar-formatted copy of the snapshot. The new copy is a backup copy. The process is sometimes referred to as a snapdupe job.

Table: Backup from snapshot operation characteristics

Characteristic

Description

Storage unit selection

The selection must be a backup storage unit or a backup storage unit group.

The selection cannot be a snapshot storage unit or a snapshot storage unit group.

Child of

A Backup from snapshot operation must use a snapshot or replication operation as its source.

Therefore, select the snapshot operation in the SLP when adding a Backup from snapshot operation.

Source for

A Backup from snapshot operation can be the source for a Duplication operation.

Hierarchy notes

An SLP may contain more than one backup from snapshot operation. If the first backup from snapshot operation fails with an unrecoverable error, NetBackup does not attempt the second one. For a NAS-Data-Protection policy, the SLP supports only one backup from snapshot operation.

Job type

A Backup from snapshot operation generates a Backup job in the Activity Monitor.

The Backup job that results from the Backup from snapshot operation is under the control of the SLP Manager. If an SLP window is configured, the Backup job runs during the configured SLP window. If no SLP window is configured, the Backup job can run at any time; possibly outside of the backup window as configured in the backup policy. You may experience a slight degradation in performance on the client or the client storage device while NetBackup accesses the snapshot.

Window

An SLP window can be created for a Backup from snapshot operation.

Figure: SLP that contains a Backup from snapshot operation

SLP that contains a Backup from snapshot operation

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Determining where and when the Index from snapshot operation occurs

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About retention period for backup from snapshot images

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