Management Of NetVault 7.4.x Virtual Libraries (4047311)

Date: 06/06
Affected NV Version: 7.4.x and up
OS Version: N/A
Plugin version: N/A
Application version: N/A

Description:
NetVault Version Excalibur(7.4) introduces new features enabling enterprise-level management and maintenance of virtual libraries. These include the ability to span libraries across multiple file systems, dynamically add drives and media items, fast media initialisation and larger media.

This document explains NetVault virtual libraries and procedures to modify them.

Library Structure

A NetVault virtual library is implemented as a file tree residing in a mounted file system. It consists of drives, slots and media items arranged in this form:

{library-name} /
drives /
1 /
.serial
{media item}
..
slots /
1 /
{media item}
..
media /
{media data file}
..

{library-name} is the top-level directory which contains the other components. There is a corresponding entry in {NetVault home}/config/diskdevices.cfg for each library.

Drives are named numerically, starting with 1. There is a corresponding entry in {NetVault config}/diskdevices.cfg for each drive. Each drive directory contains a file named '.serial. This contains the serial number of that drive. When a drive is loaded, it contains a single media item.

Slots are - like directories - named numerically starting with 1. There is one slot for each media item in the library. A slot either is empty or contains a single media item.

Media data files are large files that are treated as pieces of media. They vary in size from a few megabytes to hundreds of gigabytes. The Media data file's name is the media piece's barcode.

Media items are moved between slots and drives by the virtual library manager. They are either media data files, as described