Note the following when creating HiRDB file system areas:

1. Create the HiRDB file system areas for storing update-copy target files (HiRDB file system area for RDAREAs and HiRDB file system area for system files) as character special files.
2. When using the pdfmkfs command to create the HiRDB file system areas described in Table 2-5, specify DB, SDB, or SYS for the -k option. Do not specify SVR for the -k option or omit this option.
3. If you are using the all synchronous or hybrid method, create separate HiRDB file system areas for the following system files:
   
   • HiRDB file system area for system log files
   • HiRDB file system area for synchronization point dump files
   • HiRDB file system area for unit status files
   • HiRDB file system area for server status files
4. If you are using the all synchronous or hybrid method on a HiRDB/Parallel Server, make sure only a single server (or unit) uses any particular HiRDB file system area. In addition, make sure that only a single updatable back-end server uses any particular HiRDB file system area for shared RDAREAs.
   

   Note

   HiRDB does not check whether these conditions are satisfied. If these conditions are not satisfied, correct operation of HiRDB cannot be guaranteed.