Installation and User's Guide

vvvvIncremental-by-date image backup does not inactivate files on the server;therefore, when files are restored, none can be deleted.If this is the first image backup for the file system, a full image backup isperformed.Using mode=incremental backs up only files with a changed date, not files withchanged permissions.If file systems are running at or near capacity, an out-of-space condition couldresult during the restore.Backup NAS|||The backup nas command creates an image backup of one or more file systemsbelonging to a Network Attached Storage (NAS) file server, otherwise known asNDMP Backup.The NAS file server performs the outboard data movement. A server process startsin order to perform the backup.Use the nasnodename option to specify the node name for the NAS file server.When using an interactive command-line session with a non-administrative ID,Tivoli Storage Manager prompts for an administrator ID. The NAS node nameidentifies the NAS file server to the Tivoli Storage Manager server; the NAS nodename must be registered at the server. Place the nasnodename option in your clientoptions file (dsm.opt). The value in the client options file is the default, but can beoverridden on the command line.Use the toc option with the backup nas command or the include.fs.nas option tospecify whether Tivoli Storage Manager saves Table of Contents (TOC) informationfor each file system backup. If you save TOC information, you can use the QUERYTOC server command to determine the contents of a file system backup inconjunction with the RESTORE NODE server command to restore individual filesor directory trees.You can also use the Tivoli Storage Manager Web client to examine the entire filesystem tree and select files and directories to restore. Creation of a TOC requiresthat you define the tocdestination attribute in the backup copy group for themanagement class to which this backup image is bound. TOC creation requiresadditional processing, network resources, storage pool space, and possibly a mountpoint during the backup operation. If you do not save TOC information, you canstill restore individual files or directory trees using the RESTORE NODE servercommand, if you know the fully qualified name of each file or directory and theimage in which that object was backed up.The toc option is only supported for images backed up by Version 5.2 or laterclient and server.Specifying mode =differential on the BACKUP NODE server command or thebackup nas command where no full image exists, shows that a full backup wasstarted. Using the QUERY PROCESS server command shows that a full backup isin process.Use the mode option to specify whether to perform a full or differential NASimage backup. A full image backup backs up the entire file system. The default is adifferential NAS image backup on files that change after the last full imagebackup. If an eligible full image backup does not exist, a full image backup is546 IBM Tivoli Storage Manager for Windows Backup-Archive Clients: Installation and User's Guide