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Tivoli Storage Manager for Macintosh Backup-Archive Client Installation and User's Guide

Full Incremental Backup

The first time you run a full incremental backups, Tivoli Storage Manager backs up all of the files and folders on the volumes you specify. This process can take a long time if you have several files to back up. Successive full incremental backups will only back up new and changed files. This allows the backup server to maintain current versions of your workstation files, without having to waste time or space by backing up files that already exist in server storage. Depending on your storage management policies, the server may keep more than one version of your files in storage. The most recently backed up files are active backup versions. Older copies of your backed up files are inactive versions. However, if you delete a file from your workstation, the backup server will not maintain an active backup version of that file. If you need to retrieve a file you have deleted, you will need to access the backup server's inactive file versions. See Understanding Storage Management Policies for more information about storage management polices.

To perform a full incremental backup see Performing a Backup for more information.

During an incremental backup, the client queries the server to determine the exact state of your files since last incremental backup. The client uses this information to:

Attention: If a file's modification timestamp changes, it will be backed up during the next full incremental backup. The folders in the path that contain the file are also backed up, unless they already exist on the server. A directory that already exists on the server is only backed up again if its permissions or time stamp change. Folders count in the number of objects backed up. To exclude directories from backup, use the exclude.dir option. For more about exclude.dir, see Exclude Options.

Understanding Which Files are Backed Up

When you requst a backup, Tivoli Storage Manager backs up a file if all of the follwing requirements are met:


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