Held optical files

 

If the optical file system is unable to update the optical disk during a close function, the operation fails and the file is marked as held.

The optical file system might still consider the file to be open. If it considers the file open, the optical file system allows any application that already has the file open to continue operating. In any case, no new application can open a file while it remains held. If the system can correct the condition that caused the failure, and the file is still open, the application may attempt to close the file again. If the close function succeeds, the system no longer holds the file.

Notes:

  1. If an HFS application specified an open type of normal, it cannot access the file through the HFS API any longer. See the online help information regarding the open types that concern the Open Stream File command.

  2. The system does not create held files when files fail to close on Universal Disk Format (UDF) media.

  • Recovering a held optical file
    This topic provides instructions on recovering a held optical file.
  • Saving a held optical file
    Saving a held optical file physically writes the data and file attributes to the optical disk. You can choose to save to the original volume, directory, and file name that you specified at open time, or to a new optical file path.
  • Releasing a held optical file
    A held file can only be released if no locks are currently imposed on the file by other active jobs.
  • Implementing held optical file functions
    Before deciding whether to save or release a held optical file, you might want to view information that can influence save and release decisions.
  • Disabling held optical file support
    i5/OS® is shipped with held optical file support enabled. If desired, you may disable it by using the Change Optical Attributes (CHGOPTA) command.

 

Parent topic:

How optical files are used
Related reference
Application programming interfaces (APIs)