Installation and User's Guide

Command: dsmc help ANS1036IncrementalThe incremental command backs up all new or changed data in the locations thatyou specify, unless you exclude them from backup services.You can back up all new or changed files or directories in the default clientdomain or from file systems, directories, or files.To incrementally back up selected files or directories, enter a file specification inthe command. If you do not enter a file specification, the default is to back up filesor directories in the default domain.The following attributes in the management class assigned to the file or directoryaffect whether the data is actually backed up:FrequencyThe number of days that must elapse between successive backups for thefile. The frequency attribute applies only to a full incremental backup.This management class attribute is ignored during a journal-based backup.Mode Permits you to back up only files that changed since the last backup(modified) or back up the files whether they changed or not (absolute).SerializationPermits or denies backup of files or directories according to the followingvalues:vvvvstatic: In order to be backed up, data must not be modified duringbackup or archive.shared static: If data in the file or directory changes during each of theallowed attempts to back up or archive it, it is not backed up orarchived. The value of the changingretries option determines how manyattempts are made. The default is 4.dynamic: The object is backed up or archived on the first attemptwhether or not data changes during the process.shared dynamic: The object is backed up or archived on the last attempt,even if data changes during the process.Using the include option in an include-exclude list, you can override the defaultmanagement class for a file or group of files.You can perform either a full incremental backup or an incremental by date backup.The default is a full incremental backup.If you are journaling a file system and the journal is valid, the full incrementalbackup performs a journal-based backup. More than one journal-based backupsession can be started, but only one journal-based backup session can proceed. Allother journal-based backup sessions that need access to the same filespace mustwait until the current journal-based backup session has completed before the nextsession can proceed. You can perform a full incremental backup without thejournal by using the nojournal option.You can also use the selective command to perform a selective backup that backsup only the files, directories or empty directories that you specify regardless ofwhether they have changed.568 IBM Tivoli Storage Manager for Windows Backup-Archive Clients: Installation and User's Guide