camountall(8) — CLIX 3.1r7.6.28



  camountall(8)                       CLIX                       camountall(8)



  NAME

    camountall, caumountall - Mounts, unmounts multiple Cache File Systems

  SYNOPSIS

    /etc/camountall

    /etc/caumountall [-k]

  FLAGS

    -k   Sends a SIGKILL signal, with fuser, to processes that have files
         open.

  DESCRIPTION

    The camountall command is used to mount only Cache File Systems (CAFS),
    according to entries in the /etc/fstab file.

    The caumountall command causes all CAFS mounted file systems, including
    the cache root, to be unmounted.

    Jukebox cache file system mounts have a special device of /dev/dsk/cache.
    Only file systems with a file system type of CAFS will be mounted.

  EXAMPLES

    1.  To read the file-system-table from /etc/fstab, key in the camountall
        command without flags or arguments as follows:

        camountall


    2.  To unmount all currently mounted cache file systems, key in the
        camountall command as follows:

        caumountall


  FILES

    The format for a file-system-table is as follows:

    Column 1    Block special filename of file system

    Column 2    Mount-point directory

    Column 3    -r if to be mounted read-only; -d if remote

    Column 4    File system type string



  2/94 - Intergraph Corporation                                              1



  camountall(8)                       CLIX                       camountall(8)



    Column 5    File system options

    Column 6+   Ignored

    White space separates columns.  Lines beginning with the pound sign (#)
    are comments.  Empty lines are ignored.

    The following illustrates a cache file system optical jukebox mount:

    /dev/dsk/cache /cache/my_vol CAFS subfs=FFS,odvol=my_vol,par=7.3


    /dev/dsk/cache /cache/my_vol CAFS subfs=FFS,odvol=my_vol,par=7.4,lfs,bg

    The following illustrates a standalone cache file system mount:

    /dev/dsk/s2u0p7.5 /cache/my_vol CAFS subfs=FFS,ls


  NOTES

    The camountall and caumountall commands require superuser privileges.

    In order to speed up jukebox robotics requests, cache mounts are attempted
    prior to knowing the state of the file system.  If the mount command
    request is a background mount, camountall spawns a mnt_watcher daemon.
    The mnt_watcher daemon monitors mounts in progress and, when they are
    finished, checks /tmp/mnt_fsck  for entries.  If one or more entries are
    found, a jbfsck command is run on the damaged file system.   Once the file
    system has been successfully checked, another mount is attempted.  If the
    second mount attempt fails, a message to the system console displays.  If
    the mount is not a background mount, a jbfsck command is run on the
    damaged file system prior to mounting another file system.

    The camountall command causes all the mounted cache file systems to be
    mounted, including the cache root file system.

  DIAGNOSTICS

    No messages are displayed if the file systems are mountable and clean.

    device is not a valid file system
           The specified device is not a valid cache file system, or an error
           occurred during the mounting of the file system.

    Error and warning messages come from fsck(8), fsstat(8), and mount(8).

  RELATED INFORMATION

    Commands:  fsck(8), fsstat(8), fuser(8), mount(8),
    sysadm(1),jbfsck(8),jbmountall(8), mountall(8)



  2                                              Intergraph Corporation - 2/94



  camountall(8)                       CLIX                       camountall(8)



    Function:  signal(2)

    File:  fstab(4)



















































  2/94 - Intergraph Corporation                                              3

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