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Tivoli Storage Manager for Windows Backup-Archive Clients Installation and User's Guide

Enableserverfree

The enableserverfree option specifies whether to enable SAN-based server-free image backup which off-loads data movement processing from the client and server processor and from the LAN during image backup and restore operations. Client data is moved directly from the client disks to SAN-attached storage devices by a third-party copy function initiated by the Tivoli Storage Manager server. The client disks must be SAN-attached and accessible from the data mover, such as a SAN router. If SAN errors occurs, the client fails-over to a direct connection to the server and moves the data via LAN-free or LAN-based data movement. For an overview of the SAN-based server-free backup, see Appendix B, SAN-Based Server-Free Image Backup.

To enable SAN-based server-free support, the Tivoli Storage Manager Managed System for SAN Storage Agent must be installed and configured on the Tivoli Storage Manager Windows server. For more information, refer to Tivoli Storage Manager for Windows Administrator's Guide, GC32-0782.

Your Tivoli Storage Manager administrator may require information about your SAN-attached client disks when configuring the server for server-free data movement. You can use the query diskinfo command to display this information. See Query Diskinfo for more information.

You can perform an offline or online server-free image backup. If the Logical Volume Snapshot Agent (LVSA) is installed and configured, the client performs an online image backup, during which the volume is available to other applications. See Performing an Image Backup (Windows 2000 Only) for information on how to install and configure the LVSA.

You can use the imagetype option with the backup image command or the include.image option to specify whether to perform an offline or online image backup. See Imagetype for more information about this option. See Offline and Online Image Backup for more information about offline and online backups.

Server-free backup differs from LAN-free backup in that the client does not read or write the information to and from storage. To enable LAN-Free data movement, see Enablelanfree.

Supported Clients

This option is valid for the Windows 2000 client only.

Options File

Place this option in the client options file dsm.opt.

Syntax

                    .-No--.
>>-ENABLEServerfree-+-----+------------------------------------><
                    '-Yes-'
 
 

Parameters

No
Specifies that you do not want to enable SAN-based server-free image backup. This is the default.

Yes
Specifies that you want to enable SAN-based server-free image backup.

Examples

Options file:
enableserverfree yes

Command line:
Does not apply.


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