odfsfsck(8)                         CLIX                         odfsfsck(8)



  NAME

    odfsfsck - Checks and repairs Optical WORM ODFS file systems

  SYNOPSIS

    /etc/odfsfsck [-y] [-Q] [-n] [-o] [-O] special

  FLAGS

    -y   Assumes a yes response to all questions asked by the odfsfsck
         command.

    -n   Assumes a no response to all questions asked by the odfsfsck command.

    -Q   Performs a quick check for blank blocks instead of checking the
         entire disk.  This flag must be used with caution, since it means
         that the command will check only a portion of the disk for blank
         blocks and assume that the remaining part is also blank.

    -o   Writes out the ``orphaned'' files to the lost+found directory.

    -O   Optimizes the recovery during the times when there is not enough disk
         space left to complete the recovery.  This could happen when the disk
         is almost full and the file system requires a check.  This flag must
         be used with extreme caution.

    -F   Forces a file system check.  Used when it is required to force the
         file system to perform a check even when messages report everything
         is fine.  This flag is to be used in the case when a user knows that
         the file system is suspect, but the normal check does not detect it.

  DESCRIPTION

    The odfsfsck command audits and interactively repairs inconsistent
    conditions for Optical WORM ODFS file systems.  If the file system is
    consistent, the command returns with the file system OK reply. If the file
    system is inconsistent, the user is prompted for confirmation before each
    correction is attempted.  The default action for each correction is to
    wait for the user to repond yes or no.

    The odfsfsck command ensures that the blocks beyond the latest superblock
    are all blank.  For file systems that have only been written for a small
    portion, this check could take a long time.  To speed up the process of
    checking, the -Q flag could be used.  However, it should be noted that use
    of this flag results in making some assumptions about the blank blocks
    based on the testing of a few blocks.

    The special must be either a block or a character device file for the
    drive.  Inconsistencies checked for include the following:




  2/94 - Intergraph Corporation                                              1

  odfsfsck(8)                         CLIX                         odfsfsck(8)



    1.  Correct location of super block.

    2.  Validity of super block.

    3.  Validity of the map blocks and their links.

    4.  Validity of the inode list.

    5.  Ensure that the entire directory tree is available.

    6.  Incorrect link counts.  Orphaned files can either be deleted, or put
        in the lost+found directory, with the names corresponding to their
        inode numbers.

  EXAMPLE

    To check the optical WORM ODFS file system on the special device for the
    WORM optical disk connected to SCSI ID 3 and respond yes to all of the
    questions asked by odfsfsck, key in the following command:

    odfsfsck -y /dev/dsk/ods3u0


  NOTES

    The odfsfsck command requires superuser privileges.

  EXIT VALUES

    The odfsfsck command exits with a value of 0 if successful.  If
    unsuccessful, it exits with a nonzero value.

  RELATED INFORMATION

    Commands:  fsck(8), fstyp(8)



















  2                                              Intergraph Corporation - 2/94