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arcserve-KB : How to Identify a library as a VTL?

Last Update: 2015-12-15 22:16:01 UTC

CA ARCSERVE BACKUP FOR WINDOWS COMMON: 12.0
CA ARCSERVE BACKUP WINDOWS TLO COMMON: 12.0
Last Modified Date:    01/08/2009
Document ID:    TEC479104
Tech Document
Title:  How to Identify a library as a VTL?

Description:

A VTL is a disk-based storage appliance and it emulates a tape library.

This document describes how to identify a library as virtual tape library (VTL) using CA ARCserve Backup. When you identify a library as a VTL, read performance improves. This capability lets CA ARCserve Backup maximize drive efficiency and overall VTL backup and data migration performance.

Solution

Important! You should not identify a physical library as a VTL. When you identify a physical library as a VTL, the library's backup and data migration performance can be adversely affected.

Prerequisite Tasks

Before you can identify a library as a VTL, ensure the following prerequisite tasks are complete:

  1. Ensure that the Disk to Disk To Tape Option and the Tape Library Option are licensed.
  2. Ensure that the VTL is properly configured using Device Configuration.
  3. Ensure that CA ARCserve Backup detects the VTL.

How to identify a library as a VTL?

  1. From the menu go to Quick Start -> Administration -> Device. The Device Manager window opens.
  2. Select the server which has the VTL. Right-click on the VTL and select Library Properties from the pop-up menu.

    Figure 1
  3. The Library Properties dialog opens. Select the General tab.

    In the VTL (Virtual Tape Library) section, check the 'Library is a VTL' check box and click OK.

    Figure 2

    The library is identified as a VTL as illustrated by the following screen:

    Go to Quick Start -> Backup manager -> Staging Or Destination Tab and Select the Group for VTL. On the right bottom pane you would see the Group Type as 'VTL Library Group'.

    Figure 3

    Note: If you do not want to identify a library as a VTL, repeat the above steps and remove the check mark from the 'Library is a VTL' check box.

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