The utility files that can be created in character special files when UTL is specified in the pdfmkfs command's -k option (the purpose of the HiRDB file system area) are as follows.

• Backup files
• Unload log files
• Unload data files
• Differential backup management files
• Index information files

If character special files are to be used, you must use the pdfmkfs command to make an initial setting that the HiRDB file system area will use character special files. If the character special files are symbolic links, specify the names of the links.

Before you specify the initial setting, modify the owner and access privileges of the file system area. For details about these modifications, see 2.3.7(2) Creating a HiRDB file system area in a character special file or block special file.

The following is an example of specifying the pdfmkfs command:

pdfmkfs -n 200 -l 20 -k DB /dev/raw/raw1