failover(4M)                     DG/UX 5.4.2                    failover(4M)


NAME
       failover - failover database

SYNOPSIS
       /etc/failover

DESCRIPTION
       The  /etc/failover  directory  contains  all of the failover database
       files used in configuring and maintaining failover.

       The files within this directory are:

       application         file containing application startup scripts to be
                           executed when a physical disk is failed over.

            The format of entries in the application file is:

                 hostname  Name  of  dual ported host where physical disk is
                           coming from.

                 local-diskname
                           Local disk module specification.

                 remote-diskname
                           Remote disk module specification.

                 application-command
                           Full pathname to a script that cannot fail,  that
                           will  be executed when the disk is failed over to
                           this host.


       hosts               file containing communications  and  sync  status
                           information for failover hosts.

            The format of entries in the hosts file is:

                 hostname  Name of dual-ported host.

                 communications-path
                           the word "network" to indicate communications are
                           via the network.

                 sync-status
                           The current sync status of  this  host  with  the
                           specified  host.  The  host  is  either INSYNC or
                           NOTSYNC. Before a give or take operation  can  be
                           attempted the database state must be INSYNC.


       giveaway            file  containing  entries for physical disks that
                           can be given to other hosts

       takeaway            file containing entries for physical  disks  that



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failover(4M)                     DG/UX 5.4.2                    failover(4M)


                           can be taken from other hosts

            The format of entries in the giveaway and takeaway files is:

                 hostname  Name of dual ported host to give physical disk to
                           or take physical disk from.

                 local-diskname
                           Local disk module specification.

                 remote-diskname
                           Remote disk module specification.

                 lduname   Logical disk name.

                 piece-number
                           Logical disk piece number.

                 total-pieces
                           Total number of pieces in logical disk.

                 mount-point
                           File system mount point.

                 fs-type   File system type.

                 mount-options
                           File system mount options.

                 dump-frequency
                           File system dump frequency.

                 fsck-passno
                           File system fsck pass number.

                 export    File system export flag.

                 export-options
                           File system export options.


FILES
       /etc/failover

SEE ALSO
       admfailoverapplication(1M),                      admfailoverdisk(1M),
       admfailovergiveaway(1M),                        admfailoverhosts(1M),
       admfailovertakeaway(1M), failoverd(1M).









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