The backup savedb command creates a backup copy of the entire Backup Database and writes it to the tape in the device controlled by the Tape Coordinator indicated with the -portoffset argument. For the sake of clarity, the following text refers to tapes only, but the Backup System handles backup data files in much the same way.
Any permanent name is acceptable.
Options -portoffset Specifies the port offset number of the Tape Coordinator handling the tapes for this operation. However, if a dump set contains any dump created after the specified date, none of the dump records associated with the dump set are deleted. The string NOW to indicate the current date and time, in which case the Backup System deletes all dump records except those for dumps of the Backup Database itself. The Backup System automatically reduces any later date to the maximum value. Similarly, the backup command interpreter automatically adds 59 seconds to any time value provided.