IBM Tivoli Storage Manager for UNIX and Linux: Backup-Archive ...

VirtualmountpointSupportedOptionsSyntaxAuthorized UserThe virtualmountpoint option defines a virtual mount point for a file system ifyou want to consider files for backup that begin with a specific directory withinthat file system. Using the virtualmountpoint option to identify a directory withina file system provides a direct path to the files you want to back up, savingprocessing time. It is more efficient to define a virtual mount point within a filesystem than it is to define that file system using the domain option, and then touse the exclude option in your include-exclude options list to exclude the files thatyou do not want to back up.Use the virtualmountpoint option to define virtual mount points for multiple filesystems, for local and remote file systems, and to define more than one virtualmount point within the same file system. Virtual mount points cannot be used in afile system handled by automounter.Note: If the directory that you want to specify as a virtual mount point is asymbolic link, set the followsymbolic option to Yes. If that option is set to no(the default), you are not permitted to use a symbolic link as a virtualmount point. Also, if you back up a file system, then add avirtualmountpoint, and then do another incremental on the file system, thefiles and directories in the virtualmountpoint directory will be expired,because they are logically contained within the virtualmountpoint directoryand not the file system.After you define a virtual mount point, you can specify the path and directoryname with the domain option in either the default client options file or on theincremental command to include it for incremental backup services. When youperform a backup or archive using the virtualmountpoint option, the queryfilespace command will list the virtual mount point in its response along withother file systems. Generally, directories that you define as virtual mount points aretreated as actual file systems and require that the virtualmountpoint option isspecified in the dsm.sys file to restore or retrieve the data.Note: When you specify a virtualmountpoint option, the path that it specifies isadded to the default backup domain (domain ALL-LOCAL). Thevirtualmountpoint path is always considered a local ″mount point″regardless of the real file system type it points to.ClientsThis option is valid for all UNIX clients. The Tivoli Storage Manager client APIdoes not support this option.FilePlace this option in the dsm.sys file.►► ▼ VIRTUALMountpoint directory ►◄382 IBM Tivoli Storage Manager for UNIX and Linux: Backup-Archive Clients Installation and User’s Guide