Provided by: drbd-utils_8.9.10-2ubuntu0.1_amd64 
NAME
drbdadm - Utility for DRBD administration
SYNOPSIS
drbdadm [options...] [-- [backend-options...]] {command} {context...}
DESCRIPTION
The drbdadm utility is used for managing DRBD based on its configuration files, see drbd.conf(5). It
translates high-level commands into one or more lower-level commands for the drbdsetup and drbdmeta
utilities, which control the kernel module and manipulate the on-disk metadata.
Depending on the command, the drbdadm utility operates on one or more resources, devices, connections, or
peer devices. The following command contexts are defined:
resource
A resource specified by name, or the keyword all for all defined resources.
device
A device, specified by minor number (minor-minornumber, e.g. minor-0) or by resource and volume
number (resource/volume). If only a resource is specified, the command iterates over all devices of
that resource.
connection
A connection, specified by resource and connection name (resource:connection-name). If only a
resource is specified, the command iterates over all connections of that resource.
peer_device
A peer device, specified by resource, connection name, and volume number
(resource:connection-name/volume). If only a resource, device, or connection is specified, the
command iterates over all peer devices of that resource, device, or connection.
All options following a double-dash are passed through to the lower-level utilities as specified. In
addition, drbdadm understands most of the options of drbdsetup, and will pass them through even without
the double-dash.
OPTIONS
-d, --dry-run
Show which commands drbdadm would execute instead of actually executing them (for example, drbdadm -d
up resource). This can be a useful way to learn how drbdsetup and drbdmeta are used.
-c, --config-file file
Use an alternative configuration file. By default, drbdadm will use the the first of the following
files that exists: /etc/drbd-90.conf, /etc/drbd-84.conf, /etc/drbd-83.conf, /etc/drbd-82.conf,
/etc/drbd-08.conf, /etc/drbd.conf.
-t, --config-to-test file
Check an additional configuration file. This option is only allowed with the dump and the sh-nop
commands.
-s, --drbdsetup file
Specifies the full path to the drbdsetup program. If this option is omitted, drbdadm will look for it
beneath itself first, and then in the PATH.
-m, --drbdmeta file
Specifies the full path to the drbdmeta program. If this option is omitted, drbdadm will look for it
beneath itself first, and then in the PATH.
-S, --stacked
Perform the command on a stacked resource.
COMMANDS
adjust {resource}
Adjust the configuration of the kernel module so that it matches the configuration files. The result
should be the same as when stopping and restarting all resources (drbdadm down all followed by
drbdadm up all), but without the interruptions.
Note that the adjust command can misinterpret the configuration change in some cases. To be safe,
check what the command would do (with the --dry-run option) before running the actual command.
adjust-with-progress {resource}
The same as adjust, but with some more information about the command's progress.
apply-al {device}
Apply the activity log of the specified device. See drbdmeta(8) for details.
attach {device}
Attach a lower-level device to an existing replicated device. See drbdsetup(8) for details.
check-resize {device}
Call drbdmeta to eventually move internal meta data. If the backing device was resized, while DRBD
was not running, meta data has to be moved to the end of the device, so that the next attach command
can succeed.
connect {connection}
Activate an exisiting connection to a peer. The connection needs to be created first with the
new-peer command, and have at least one path created with the new-path command. See drbdsetup(8) for
details.
create-md {device}
Initialize the metadata of a device. This is necessary before a device can be attached; see
drbdmeta(8) for details.
cstate {connection}
Show the current state of a connection. See drbdsetup(8) for details.
detach {device}
Detach the lower-level device of a replicated device. See drbdsetup(8) for details.
disconnect {connection}
Remove a connection to a peer host. See drbdsetup(8) for details.
disk-options {device}
Cange the disk options of an attached lower-level device. See drbdsetup(8) for details.
down {resource}
Take a resource down by removing all volumes, connections, and the resource itself. See drbdsetup(8)
for details.
dstate {device}
Show the current disk state of a lower-level device. See drbdsetup(8) for details.
dump {resource}
Parse the configuration file and dump it to stdout. This will fail if the configuration file is
syntactically incorrect.
dump-md {device}
Dump the metadata of a device in text form, including the bitmap and activity log. See drbdmeta(8)
for details.
get-gi {peer_device}
Show the data generation identifiers for a device on a particular connection. Uses drbdsetup for
attached devices and drbdmeta for unattached devices. See drbdsetup(8) for details.
hidden-commands
Shows all commands which are not explicitly documented.
invalidate {peer_device}
Replace the local data of a device with that of a peer. See drbdsetup(8) for details.
invalidate-remote {peer_device}
Replace a peer device's data of a resource with the local data. See drbdsetup(8) for details.
net-options {connection}
Change the network options of an existing connection. See drbdsetup(8) for details.
new-current-uuid {device}
Generate a new currend UUID. See drbdsetup(8) for details.
outdate {device}
Mark the data on a lower-level device as outdated. See drbdsetup(8) for details.
pause-sync {peer_device}
Stop resynchronizing between a local and a peer device by setting the local pause flag. See
drbdsetup(8) for details.
primary {resource}
Change the role of a node in a resource to primary. See drbdsetup(8) for details.
resize {device}
Resize the lower-level devices of a replicated device on all nodes. This combines the check-resize
and resize lower-level commands; see drbdsetup(8) for details.
resource-options {resource}
Change the resource options of an existing resource. See drbdsetup(8) for details.
resume-sync {peer_device}
Allow resynchronization to resume by clearing the local sync pause flag. See drbdsetup(8) for
details.
role {resource}
Show the current role of a resource.
secondary {resource}
Change the role of a node in a resource to secondary. This command fails if the replicated device is
in use.
show-gi {peer_device}
Show the data generation identifiers for a device on a particular connection. In addition, explain
the output. See drbdsetup(8) for details.
state {resource}
This is an alias for drbdsetup role. Deprecated.
up {resource}
Bring up a resource by applying the activity log of all volumes, creating the resource, creating the
replicated devices, attaching the lower-level devices, and connecting to all peers. See the apply-al
drbdmeta command and the new-resource, new-device, new-minor, attach, and connect drbdsetup commands.
verify {peer_device}
Start online verification, change which part of the device will be verified, or stop online
verification. See drbdsetup(8) for details.
wait-connect {[device] | [connection] | [resource]}
Wait until a device on a peer, all devices over a connection, or all devices on all peers are
visible. See drbdsetup(8) for details.
wait-sync {[device] | [connection] | [resource]}
Wait until a device is connected and has finished eventual resync operation. Also available on
connection and resource level. See drbdsetup(8) for details.
wipe-md {device}
Wipe out the DRBD metadata of a device. See drbdmeta(8) for details.
forget-peer {connection}
Completely remove any reference to a unconnected peer from meta-data. See drbdmeta(8) for details.
VERSION
This document was revised for version 9.0.0 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 2001-2012 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
drbd.conf(5), drbd(8), drbddisk(8), drbdsetup(8), drbdmeta(8) and the DRBD project web site[1]
NOTES
1. DRBD project web site
http://www.drbd.org/