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Chapter 5. Configuring Cluster Resources
This chapter provides information on configuring resources in a cluster.
5.1. Resource Creation
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Use the following command to create a cluster resource.
pcs resource create resource_id standard:provider:type|type [resource options]
For example, the following command creates a resource with the name VirtualIP of standard
ocf, provider heartbeat, and type IPaddr2. The floating address of this resource is 192.168.0.120, the system will check whether the resource is running every 30 seconds.
# pcs resource create VirtualIP ocf:heartbeat:IPaddr2 ip=192.168.0.120 cidr_netmask=24 op monitor interval=30s
Alternately, you can omit the standard and provider fields and use the following command. This will default to a standard of
ocf and a provider of heartbeat.
# pcs resource create VirtualIP IPaddr2 ip=192.168.0.120 cidr_netmask=24 op monitor interval=30s
As of the Red Hat Enterprise Linux 6.8 release, resources start as soon as their state has been confirmed on all nodes and all dependencies have been satisfied, rather than waiting for the state of all resources to be confirmed. This allows for faster startup of some services, and more even startup load.
Use the following command to delete a configured resource.
pcs resource delete resource_id
For example, the following command deletes an existing resource with a resource ID of
VirtualIP
# pcs resource delete VirtualIP- For information on the resource_id, standard, provider, and type fields of the
pcs resource createcommand, see Section 5.2, “Resource Properties”. - For information on defining resource parameters for individual resources, see Section 5.3, “Resource-Specific Parameters”.
- For information on defining resource meta options, which are used by the cluster to decide how a resource should behave, see Section 5.4, “Resource Meta Options”.
- For information on defining the operations to perform on a resource, see Section 5.6, “Resource Operations”.
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