Installation and User's Guide

space management has been added whenspace management is globally deactivatedfor a client node. When spacemanagement is globally deactivated,hierarchical storage management (HSM)cannot perform migration, recall, orreconciliation. However, a root user canupdate space management settings andadd space management to additional filesystems. Users can access resident andpremigrated files.Globally Unique Identifier (GUID)An algorithmically determined numberthat uniquely identifies an entity within asystem.GPFS See General Parallel File System.GPFS node setA mounted, defined group of GPFS filesystems.group backupThe backup of a group containing a list offiles from one or more file space origins.GUID See Globally Unique Identifier.Hhierarchical storage management (HSM)A function that automatically distributesand manages data on disk, tape, or bothby regarding devices of these types andpotentially others as levels in a storagehierarchy that range from fast, expensivedevices to slower, cheaper, and possiblyremovable devices. The objectives are tominimize access time to data andmaximize available media capacity.hierarchical storage management (HSM) clientA client program that works with theTivoli Storage Manager server to providehierarchical storage management (HSM)for a system. See also hierarchical storagemanagement and space manager client.HSM See hierarchical storage management.HSM clientSee hierarchical storage management client.IILM See information lifecycle management.imageA file system or raw logical volume thatis backed up as a single object.image backupA backup of a full file system or rawlogical volume as a single object.inactive file systemA file system for which spacemanagement has been deactivated.Contrast with active file system.inactive versionA backup version of a file that is eithernot the most recent backup version, orthat is a backup version of a file that nolonger exists on the client system. Inactivebackup versions are eligible for expirationprocessing according to the managementclass assigned to the file. Contrast withactive version.include-exclude fileA file containing statements to determinethe files to back up and the associatedmanagement classes to use for backup orarchive. See also include-exclude list.include-exclude listA list of options that include or excludeselected files for backup. An excludeoption identifies files that should not bebacked up. An include option identifiesfiles that are exempt from the exclusionrules or assigns a management class to afile or a group of files for backup orarchive services.incremental backup(1) A copy of all database data that haschanged since the most recent successfulfull backup operation. An incrementalbackup is also known as a cumulativebackup image because each incrementalbackup includes the contents of theprevious incremental backup.(2) The process of backing up informationin the database that is new or changedsince the last full backup. Contrast withfull backup. See also database backup series.(3) For Data Protection for MicrosoftExchange Server, a backup in which thetransaction logs are backed up and thencleared.individual mailbox restoreSee mailbox restore.information lifecycle management (ILM)GPFS policy-based file management forstorage pools and file sets.Glossary 681