Installation and User's Guide

If you restore or retrieve a file that contains a fuzzy copy, the file might not beusable. Do not use dynamic or shared dynamic serialization to back up filesunless you are certain that a fuzzy copy that is restored is usable.Important: Be careful when you select a management class containing a copygroup that specifies shared dynamic or serialization dynamic backup.Only for Windows 2003 and XP: If open file support is configured, Tivoli StorageManager performs a snapshot backup of files that are open or locked by otherapplications. The snapshot allows the backup to be taken from a point-in-timecopy that matches the file system at the time the snapshot is taken. Subsequentchanges to the file system are not included in the backup.Related concepts“Open file support for backup operations” on page 99Related tasks“Configuring Open File Support” on page 63Related reference“Snapshotproviderimage” on page 474Copy mode attributeThe copy mode attribute determines whether a file or directory is considered forincremental backup regardless of whether it changed or not since the last backup.Tivoli Storage Manager does not check the mode for selective backups.The value for this parameter can be one of the following:v Modified. The file is considered for incremental backup only if it has changedsince the last backup. A file is considered changed if any of the following aretrue:– The date or time of the last modification is different.– The file size is different.– The file attributes, with the exception of archive, are different.– If only the file metadata changes (such as access permissions), but the filedata does not change, Tivoli Storage Manager might back up only themetadata.v Absolute. The file is considered for incremental backup regardless of whether itchanged since the last backup. For archive copy groups, the mode is alwaysabsolute, indicating that a file is archived regardless of whether it changed sincethe last archive request.Copy destination attributeThe copy destination attribute names the destination where backups or archives arestored.The destination can be either a storage pool of disk devices or a storage pool ofdevices that support removable media, such as tape.Retain versions attributeThe retain versions attribute specifies the number of days an archived file remainsin storage.240 IBM Tivoli Storage Manager for Windows Backup-Archive Clients: Installation and User's Guide