Provided by: drbd-utils_8.9.6-1_i386 bug

NAME

       drbdmeta - DRBD´s meta data management tool .

SYNOPSIS

       drbdmeta [--force] [--ignore-sanity-checks] {device} {v06 minor |
                v07 meta_dev index | v08 meta_dev index} {command}
                [cmd args...]

DESCRIPTION

       Drbdmeta is used to create, display and modify the contents of DRBD´s
       meta data storage. Usually you do not want to use this command
       directly, but start it via the frontend drbdadm(8).

       This command only works if the DRBD resource is currently down, or at
       least detached from its backing storage. The first parameter is the
       device node associated to the resource. With the second parameter you
       can select the version of the meta data. Currently all major DRBD
       releases (0.6, 0.7 and 8) are supported.

OPTIONS

       --force
           All questions that get asked by drbdmeta are treated as if the user
           answered ´yes´.

       --ignore-sanity-checks
           Some sanity checks cause drbdmeta to terminate. E.g. if a file
           system image would get destroyed by creating the meta data. By
           using that option you can force drbdmeta to ignore these checks.

COMMANDS

       create-md --peer-max-bio-size val
           Create-md initializes the meta data storage. This needs to be done
           before a DRBD resource can be taken online for the first time. In
           case there is already a meta data signature of an older format in
           place, drbdmeta will ask you if it should convert the older format
           to the selected format.

           If you will use the resource before it is connected to its peer for
           the first time DRBD may perform better if you use the
           --peer-max-bio-size option. For DRBD versions of the peer use up to
           these values: <8.3.7 -> 4k, 8.3.8 -> 32k, 8.3.9 -> 128k, 8.4.0 ->
           1M.

       get-gi
           Get-gi shows a short textual representation of the data generation
           identifier. In version 0.6 and 0.7 these are generation counters,
           while in version 8 it is a set of UUIDs.

       show-gi
           Show-gi prints a textual representation of the data generation
           identifiers including explanatory information.

       dump-md
           Dumps the whole contents of the meta data storage including the
           stored bit-map and activity-log in a textual representation.

       outdate
           Sets the outdated flag in the meta data. This is used by the peer
           node when it wants to become primary, but cannot communicate with
           the DRBD stack on this host.

       dstate
           Prints the state of the data on the backing storage. The output is
           always followed by ´/DUnknown´ since drbdmeta only looks at the
           local meta data.

       check-resize
           Examines the device size of a backing device, and it´s last known
           device size, recorded in a file /var/lib/drbd/drbd-minor-??.lkbd.
           In case the size of the backing device changed, and the meta data
           can be found at the old position, it moves the meta data to the
           right position at the end of the block device.

EXPERT'S COMMANDS

       Drbdmeta allows you to modify the meta data as well. This is
       intentionally omitted for the command´s usage output, since you should
       only use it if you really know what you are doing. By setting the
       generation identifiers to wrong values, you risk to overwrite your
       up-to-data data with an older version of your data.

       set-gi gi
           Set-gi allows you to set the generation identifier.  Gi needs to be
           a generation counter for the 0.6 and 0.7 format, and a UUID set for
           8.x. Specify it in the same way as get-gi shows it.

       restore-md dump_file
           Reads the dump_file and writes it to the meta data.

VERSION

       This document was revised for version 8.3.2 of the DRBD distribution.

AUTHOR

       Written by Philipp Reisner philipp.reisner@linbit.com and Lars
       Ellenberg lars.ellenberg@linbit.com.

REPORTING BUGS

       Report bugs to drbd-user@lists.linbit.com.

COPYRIGHT

       Copyright 2001-2008 LINBIT Information Technologies, Philipp Reisner,
       Lars Ellenberg. This is free software; see the source for copying
       conditions. There is NO warranty; not even for MERCHANTABILITY or
       FITNESS FOR A PARTICULAR PURPOSE.

SEE ALSO

       drbdadm(8)