System Administration Guide, Volume 1

Specifying Files to Back Up

You must always include files-to-backup as the last argument on the command line. This argument specifies the source or contents of the backup. It usually identifies a file system but can also identify individual files or directories.

For a file system, specify the raw device file for a disk slice. It includes the disk controller abbreviation (c), the target number (t) for SCSI devices only, a number indicating the disk number (d), and the slice number (s). For example, if you have a SCSI disk controller on your standalone system (or server) and you want to back up /usr located in slice 6, specify the device as follows:


You can specify the file system by its mount point directory (for example, /home), as long as there is an entry for it in the /etc/vfstab file.

See "Backup Device Names" for a complete description of device naming conventions.

For individual files or directories, type one or more names separated by spaces.

Note -

When you use ufsdump to back up one or more directories or files (rather than a whole file system), a level 0 backup is done. Incremental backups do not apply.