Installation and User's Guide

When the specified number of days elapse for an archived copy of a file, it isdeleted from server storage.Deduplicate data attributeThe deduplicate data attribute specifies whether redundant data is transferred to theTivoli Storage Manager server during backup and archive processing.Related concepts“Client-side data deduplication” on page 38Related reference“Deduplication” on page 336“Enablededupcache” on page 358“Exclude options” on page 366Select a management class for filesIf the default management class meets the backup and archive requirements for allthe files on your workstation, it is not necessary to take any action to associateyour files with that management class. This is done automatically when you backup or archive your files.When selecting a different management class for your files, consider thesequestions:v Does the management class contain a backup copy group?If you attempt to back up a file associated with a management class that doesnot contain a backup copy group, the file is not backed up.v Does the management class contain an archive copy group?You cannot archive a file associated with a management class that does notcontain an archive copy group.v Does the backup copy group contain attributes that back up your files oftenenough?Mode and frequency work together to control how often a file is backed upwhen you use incremental backup. Tivoli Storage Manager does not check thoseattributes for selective backup.v What serialization method does the copy group use?The serialization method determines how Tivoli Storage Manager functionswhen a file changes while it is being backed up.v Does the backup copy group specify an adequate number of backup versions tokeep, along with an adequate length of time to keep them?v Does the archive copy group specify an adequate length of time to keeparchived copies of files?Related concepts“Copy serialization attribute” on page 239Assign a management class to filesA management class defines when your files are included in a backup, how longthey are kept on the server, and how many versions of the file the server shouldkeep.The server administrator selects a default management class. You can specify yourown management class to override the default management class.Chapter 9. Storage management policies 241