The FILE parameter specifies whether the dump and restore operations will write to or read from a tape or a files. The parameter has the following valid arguments:
YES
Dump and restore operations use a file. The target path name is specified in the /opt/dcelocal/var/dfs/backup/TapeConfig file.
NO
Dump and restore operations use a tape device. Not specifying the FILE parameter provides the same result.
Keep these points in mind when using this parameter:
· If the Tape Coordinator needs another file to continue an operation, it prompts the operator to mount another tape but then continues the operation using the path name specified in the /opt/dcelocal/var/dfs/backup/TapeConfig file. A good practice is to specify a path name that is a link to another file. If you must then provide another file name, you can take advantage of the prompt for a new tape to change the link to a new path name.
· Do not specify the YES argument when using a tape device or the NO argument when using a file. Neither arrangement works.
· If you specify YES, all ioctl calls are removed. Data is still written in 16 KB blocks; however, the position of database records is not a filemark position (as is normal with tapes). Positioning to a volume is done directly with a seek call.