PCS(8) System Administration Utilities PCS(8)NAMEpcs - pacemaker/corosync configuration system
SYNOPSISpcs [-f file] [-h] [commands]...
DESCRIPTION
Control and configure pacemaker and corosync.
OPTIONS-h, --help
Display usage and exit
-f file
Perform actions on file instead of active CIB
--debug
Print all network traffic and external commands run
--version
Print pcs version information
Commands:
cluster
Configure cluster options and nodes
resource
Manage cluster resources
stonith
Configure fence devices
constraint
Set resource constraints
property
Set pacemaker properties
status View cluster status
config Print full cluster configuration
resource
show [resource id] [--full] [--groups]
Show all currently configured resources or if a resource is
specified show the options for the configured resource. If
--full is specified all configured resource options will be dis‐
played. If --groups is specified, only show groups (and their
resources).
list [<standard|provider|type>] [--nodesc]
Show list of all available resources, optionally filtered by
specified type, standard or provider. If --nodesc is used then
descriptions of resources are not printed.
describe <standard:provider:type|type>
Show options for the specified resource
create <resource id> <standard:provider:type|type> [resource options]
[op <operation action> <operation options> [<operation action> <opera‐
tion options>]...] [meta <meta options>...] [--clone <clone options> |
--master <master options> | --group <group name>]
Create specified resource. If --clone is used a clone resource
is created if --master is specified a master/slave resource is
created. If --group is specified the resource is added to the
group named. Example: pcs resource create ClusterIP ocf:heart‐
beat:IPaddr2 \ ip=192.168.0.99 cidr_netmask=32 nic=eth2 op moni‐
tor interval=30s \ Create a new resource called 'ClusterIP' with
IP address 192.168.0.99, netmask of 32, monitored everything 30
seconds, on eth2.
delete <resource id|group id|master id|clone id>
Deletes the resource, group, master or clone (and all resources
within the group/master/clone).
enable <resource id> [--wait[=n]]
Allow the cluster to start the resource. Depending on the rest
of the configuration (constraints, options, failures, etc), the
resource may remain stopped. If --wait is specified, pcs will
wait up to 30 seconds (or 'n' seconds) for the resource to start
and then return 0 if the resource is started, or 1 if the
resource has not yet started.
disable <resource id> [--wait[=n]]
Attempt to stop the resource if it is running and forbid the
cluster from starting it again. Depending on the rest of the
configuration (constraints, options, failures, etc), the
resource may remain started. If --wait is specified, pcs will
wait up to 30 seconds (or 'n' seconds) for the resource to stop
and then return 0 if the resource is stopped or 1 if the
resource has not stopped.
debug-start <resource id> [--full]
This command will force the specified resource to start on this
node ignoring the cluster recommendations and print the output
from starting the resource. Using --full will give more detailed
output. This is mainly used for debugging resources that fail to
start.
move <resource id> [destination node] [--master]
Move resource off current node (and optionally onto destination
node). If --master is used the scope of the command is limited
to the master role and you must use the master id (instead of
the resource id).
ban <resource id> [node] [--master]
Prevent the resource id specified from running on the node (or
on the current node it is running on if no node is specified).
If --master is used the scope of the command is limited to the
master role and you must use the master id (instead of the
resource id).
clear <resource id> [node] [--master]
Remove constraints created by move and/or ban on the specified
resource (and node if specified). If --master is used the scope
of the command is limited to the master role and you must use
the master id (instead of the resource id).
standards
List available resource agent standards supported by this
installation. (OCF, LSB, etc.)
providers
List available OCF resource agent providers
agents [standard[:provider]]
List available agents optionally filtered by standard and
provider
update <resource id> [resource options] [op [<operation action>
<operation options>]...] [meta <meta operations>...] Add/Change
options to specified resource, clone or multi-state resource.
If an operation (op) is specified it will update the first found
operation with the same action on the specified resource, if no
operation with that action exists then a new operation will be
created (WARNING: all current options on the update op will be
reset if not specified). If you want to create multiple monitor
operations you should use the add_operation & remove_operation
commands.
op add <resource id> <operation action> [operation properties]
Add operation for specified resource
op remove <resource id> <operation action> [operation properties]
Remove specified operation (note: you must specify the exact
operation properties to properly remove an existing operation).
op remove <operation id>
Remove the specified operation id
op defaults [options]
Set default values for operations, if no options are passed,
lists currently configured defaults
meta <resource id | group id | master id | clone id> <meta options>
Add specified options to the specified resource, group, mas‐
ter/slave or clone. Meta options should be in the format of
name=value, options may be removed by setting an option without
a value. Example: pcs resource meta TestResource failure-time‐
out=50 stickiness=
group add <group name> <resource id> [resource id] ... [resource id]
Add the specified resource to the group, creating the group if
it does not exist. If the resource is present in another group
it is moved to the new group.
group remove <group name> <resource id> [resource id] ... [resource id]
Remove the specified resource(s) from the group, removing the
group if it no resources remain.
ungroup <group name> [resource id] ... [resource id]
Remove the group (Note: this does not remove any resources from
the cluster) or if resources are specified, remove the specified
resources from the group
clone <resource id | group id> [clone options]...
Setup up the specified resource or group as a clone
unclone <resource id | group name>
Remove the clone which contains the specified group or resource
(the resource or group will not be removed)
master [<master/slave name>] <resource id | group name> [options]
Configure a resource or group as a multi-state (master/slave)
resource. Note: to remove a master you must remove the
resource/group it contains.
manage <resource id> ... [resource n]
Set resources listed to managed mode (default)
unmanage <resource id> ... [resource n]
Set resources listed to unmanaged mode
defaults [options]
Set default values for resources, if no options are passed,
lists currently configured defaults
cleanup <resource id>
Cleans up the resource in the lrmd (useful to reset the resource
status and failcount). This tells the cluster to forget the
operation history of a resource and re-detect its current state.
This can be useful to purge knowledge of past failures that have
since been resolved.
failcount show <resource id> [node]
Show current failcount for specified resource from all nodes or
only on specified node
failcount reset <resource id> [node]
Reset failcount for specified resource on all nodes or only on
specified node. This tells the cluster to forget how many times
a resource has failed in the past. This may allow the resource
to be started or moved to a more preferred location.
cluster
auth [node] [...] [-u username] [-p password]
Authenticate pcs to pcsd on nodes specified, or on all nodes
configured in corosync.conf if no nodes are specified (autho‐
rization tokens are stored in ~/.pcs/token)
setup [--start] [--local] [--enable] --name <cluster name> <node1>
[node2] [..]
Configure corosync and sync configuration out to listed nodes
--local will only perform changes on the local node, --start
will also start the cluster on the specified nodes, --enable
will enable corosync and pacemaker on node startup
start [--all] [node] [...]
Start corosync & pacemaker on specified node(s), if a node is
not specified then corosync & pacemaker are started on the local
node. If --all is specified then corosync & pacemaker are
started on all nodes.
stop [--all] [node] [...]
Stop corosync & pacemaker on specified node(s), if a node is not
specified then corosync & pacemaker are stopped on the local
node. If --all is specified then corosync & pacemaker are
stopped on all nodes.
kill Force corosync and pacemaker daemons to stop on the local node
(performs kill -9).
enable [--all] [node] [...]
Configure corosync & pacemaker to run on node boot on specified
node(s), if node is not specified then corosync & pacemaker are
enabled on the local node. If --all is specified then corosync &
pacemaker are enabled on all nodes.
disable [--all] [node] [...]
Configure corosync & pacemaker to not run on node boot on speci‐
fied node(s), if node is not specified then corosync & pacemaker
are disabled on the local node. If --all is specified then
corosync & pacemaker are disabled on all nodes. (Note: this is
the default after installation)
standby <node> | --all
Put specified node into standby mode (the node specified will no
longer be able to host resources), if --all is specified all
nodes will be put into standby mode.
unstandby <node> | --all
Remove node from standby mode (the node specified will now be
able to host resources), if --all is specified all nodes will be
removed from standby mode.
remote-node add <hostname> <resource id> [options]
Enables the specified resource as a remote-node resource on the
specified hostname (hostname should be the same as 'uname -n')
remote-node remove <hostname>
Disables any resources configured to be remote-node resource on
the specified hostname (hostname should be the same as 'uname
-n')
status View current cluster status (an alias of 'pcs status cluster')
pcsd-status [node] [...]
Get current status of pcsd on nodes specified, or on all nodes
configured in corosync.conf if no nodes are specified
certkey <certificate file> <key file>
Load custom certificate and key files for use in pcsd
sync Sync corosync configuration to all nodes found from current
corosync.conf file
cib [filename]
Get the raw xml from the CIB (Cluster Information Base). If a
filename is provided, we save the cib to that file, otherwise
the cib is printed
cib-push <filename>
Push the raw xml from <filename> to the CIB (Cluster Information
Base)
edit Edit the cib in the editor specified by the $EDITOR environment
variable and push out any changes upon saving
node add <node> [--start]
Add the node to corosync.conf and corosync on all nodes in the
cluster and sync the new corosync.conf to the new node. If
--start is specified also start corosync/pacemaker on the new
node
node remove <node>
Shutdown specified node and remove it from pacemaker and
corosync on all other nodes in the cluster
corosync <node>
Get the corosync.conf from the specified node
reload corosync
Reload the corosync configuration on the current node
destroy [--all]
Permanently destroy the cluster on the current node, killing all
corosync/pacemaker processes removing all cib files and the
corosync.conf file. Using '--all' will attempt to destroy the
cluster on all nodes configure in the corosync.conf file WARN‐
ING: This command permantly removes any cluster configuration
that has been created. It is recommended to run 'pcs cluster
stop' before destroying the cluster.
verify [-V] [filename]
Checks the pacemaker configuration (cib) for syntax and common
conceptual errors. If no filename is specified the check is
performmed on the currently running cluster. If '-V' is used
more verbose output will be printed
report [--from "YYYY-M-D H:M:S" [--to "YYYY-M-D" H:M:S"]] dest
Create a tarball containing everything needed when reporting
cluster problems. If '--from' and '--to' are not used, the
report will include the past 24 hours
stonith
show [stonith id] [--full]
Show all currently configured stonith devices or if a stonith id
is specified show the options for the configured stonith device.
If --full is specified all configured stonith options will be
displayed
list [filter]
Show list of all available stonith agents (if filter is provided
then only stonith agents matching the filter will be shown)
describe <stonith agent>
Show options for specified stonith agent
create <stonith id> <stonith device type> [stonith device options]
Create stonith device with specified type and options
update <stonith id> [stonith device options]
Add/Change options to specified stonith id
delete <stonith id>
Remove stonith id from configuration
cleanup <stonith id>
Cleans up the stonith device in the lrmd (useful to reset the
status and failcount). This tells the cluster to forget the
operation history of a stonith device and re-detect its current
state. This can be useful to purge knowledge of past failures
that have since been resolved.
level Lists all of the fencing levels currently configured
level add <level> <node> <devices>
Add the fencing level for the specified node with a comma sepa‐
rated list of devices (stonith ids) to attempt for that node at
that level. Fence levels are attempted in numerical order
(starting with 1) if a level succeeds (meaning all devices are
successfully fenced in that level) then no other levels are
tried, and the node is considered fenced.
level remove <level> [node id] [stonith id] ... [stonith id]
Removes the fence level for the level, node and/or devices spec‐
ified If no nodes or devices are specified then the fence level
is removed
level clear [node|stonith id(s)]
Clears the fence levels on the node (or stonith id) specified or
clears all fence levels if a node/stonith id is not specified.
If more than one stonith id is specified they must be separated
by a comma and no spaces. Example: pcs stonith level clear
dev_a,dev_b
level verify
Verifies all fence devices and nodes specified in fence levels
exist
fence <node> [--off]
Fence the node specified (if --off is specified, use the 'off'
API call to stonith which will turn the node off instead of
rebooting it)
confirm <node>
Confirm that the host specified is currently down WARNING: if
this node is not actually down data corruption/cluster failure
can occur.
property
list|show [property] [--all | --defaults]
List property settings (Default: all properties) If --defaults
is specified will show all property defaults, if --all is speci‐
fied, current configured properties will be shown with unset
properties and their defaults
set [--force] [--node <nodename>] <property>=[<value>]
Set specific pacemaker properties (if the value is blank then
the property is removed from the configuration). If a property
is not recognized by pcs the property will not be created unless
the '--force' is used. If --node is used a node attribute is set
on the specified node.
unset [--node <nodename>] <property>
Remove property from configuration (or remove attribute from
specified node if --node is used).
constraint
[list|show] --full
List all current location, order and colocation constraints, if
--full is specified also list the constraint ids.
location <resource id> prefers <node[=score]>...
Create a location constraint on a resource to prefer the speci‐
fied node and score (default score: INFINITY)
location <resource id> avoids <node[=score]>...
Create a location constraint on a resource to avoid the speci‐
fied node and score (default score: INFINITY)
location <resource id> rule [role=master|slave] [score=<score>]
<expression>
Creates a location rule on the specified resource where the
expression looks like one of the following:
defined|not_defined <attribute>
<attribute> lt|gt|lte|gte|eq|ne <value>
date [start=<start>] [end=<end>] operation=gt|lt|in-range
date-spec <date spec options>...
location show [resources|nodes [node id|resource id]...] [--full]
List all the current location constraints, if 'resources' is
specified location constraints are displayed per resource
(default), if 'nodes' is specified location constraints are dis‐
played per node. If specific nodes or resources are specified
then we only show information about them
location add <id> <resource name> <node> <score>
Add a location constraint with the appropriate id, resource
name, node name and score. (For more advanced pacemaker usage)
location remove <id> [<resource name> <node> <score>]
Remove a location constraint with the appropriate id, resource
name, node name and score. (For more advanced pacemaker usage)
order show [--full]
List all current ordering constraints (if '--full' is specified
show the internal constraint id's as well).
order [action] <resource id> then [action] <resource id> [options]
Add an ordering constraint specifying actions (start,stop,pro‐
mote, demote) and if no action is specified the default action
will be start. Available options are kind=Optional/Manda‐
tory/Serialize and symmetrical=true/false
order set <resource1> <resource2> [resourceN]... [options] [set
<resourceX> <resourceY> ...] Create an ordered set of resources.
order remove <resource1> [resourceN]...
Remove resource from any ordering constraint
colocation show [--full]
List all current colocation constraints (if '--full' is speci‐
fied show the internal constraint id's as well).
colocation add [master|slave] <source resource id> with [master|slave]
<target resource id> [score] [options] Request <source resource>
to run on the same node where pacemaker has determined <target
resource> should run. Positive values of score mean the
resources should be run on the same node, negative values mean
the resources should not be run on the same node. Specifying
'INFINITY' (or '-INFINITY') for the score force <source
resource> to run (or not run) with <target resource>. (score
defaults to "INFINITY") A role can be master or slave (if no
role is specified, it defaults to 'started').
colocation set <resource1> <resource2> [resourceN]... [setoptions] ...
[set <resourceX> <resourceY> ...] [setoptions <name>=<value>...]
Create a colocation constraint with a resource set
colocation remove <source resource id> <target resource id>
Remove colocation constraints with <source resource>
remove [constraint id]...
Remove constraint(s) or constraint rules with the specified
id(s)
ref [resource]...
List constraints referencing specified resource
rule add <constraint id> [<rule type>] [score=<score>] [id=<rule id>]
<expression|date_expression|date_spec>... Add a rule to a con‐
straint, if score is omitted it defaults to INFINITY, if id is
omitted one is generated from the constraint id. The <rule type>
should be 'expression' or 'date_expression'
rule remove <rule id>
Remove a rule if a rule id is specified, if rule is last rule in
its constraint, the constraint will be removed
status
[status]
View all information about the cluster and resources
resources
View current status of cluster resources
groups View currently configured groups and their resources
cluster
View current cluster status
corosync
View current membership information as seen by corosync
nodes [corosync|both|config]
View current status of nodes from pacemaker. If 'corosync' is
specified, print nodes currently configured in corosync, if
'both' is specified, print nodes from both corosync & pacemaker.
If 'config' is specified, print nodes from corosync & pacemaker
configuration.
pcsd <node> ...
Show the current status of pcsd on the specified nodes
xml View xml version of status (output from crm_mon -r -1 -X)
EXAMPLES
Show all resources
# pcs resource show
Show options specific to the 'ClusterIP' resource
# pcs resource show ClusterIP
Create a new resource called 'ClusterIP' with options
# pcs resource create ClusterIP ocf:heartbeat:IPaddr2
ip=192.168.0.99 cidr_netmask=32 nic=eth2 op monitor interval=30s
Create a new resource called 'ClusterIP' with options
# pcs resource create ClusterIP IPaddr2 ip=192.168.0.99
cidr_netmask=32 nic=eth2 op monitor interval=30s
Change the ip address of ClusterIP and remove the nic option
# pcs resource update ClusterIP ip=192.168.0.98 nic=
Delete the ClusterIP resource
# pcs resource delete ClusterIP
Create the MyStonith stonith fence_virt device which can fence host
'f1'
# pcs stonith create MyStonith fence_virt pcmk_host_list=f1
Set the stonith-enabled property to false on the cluster (which dis‐
ables stonith)
# pcs property set stonith-enabled=false
pcs 0.9.99 August 2013 PCS(8)
