6.11. Listing Available Cluster Services and Resources
You can use the
ccs command to print a list of resources and services that are available for a cluster. You can also use the ccs command to print a list of the options you can specify for a particular service or resource type.
To print a list of cluster services currently available for your cluster, execute either of the following commands (
--lsresourceopts is an alias to --lsserviceopts):
ccs -h host --lsserviceopts ccs -h host --lsresourceopts
For example, the following command lists the cluster services and resources available on the cluster node
node1, showing sample output.
[root@ask-03 ~]# ccs -h node1 --lsserviceopts
service - Defines a service (resource group).
ASEHAagent - Sybase ASE Failover Instance
SAPDatabase - SAP database resource agent
SAPInstance - SAP instance resource agent
apache - Defines an Apache web server
clusterfs - Defines a cluster file system mount.
fs - Defines a file system mount.
ip - This is an IP address.
lvm - LVM Failover script
mysql - Defines a MySQL database server
named - Defines an instance of named server
netfs - Defines an NFS/CIFS file system mount.
nfsclient - Defines an NFS client.
nfsexport - This defines an NFS export.
nfsserver - This defines an NFS server resource.
openldap - Defines an Open LDAP server
oracledb - Oracle 10g Failover Instance
orainstance - Oracle 10g Failover Instance
oralistener - Oracle 10g Listener Instance
postgres-8 - Defines a PostgreSQL server
samba - Dynamic smbd/nmbd resource agent
script - LSB-compliant init script as a clustered resource.
tomcat-6 - Defines a Tomcat server
vm - Defines a Virtual Machine
action - Overrides resource action timings for a resource instance.
To print a list of the options you can specify for a particular service type, execute the following command:
ccs -h host --lsserviceopts service_type
For example, the following command lists the service options for the
vm service.
[root@ask-03 ~]# ccs -f node1 --lsserviceopts vm
vm - Defines a Virtual Machine
Required Options:
name: Name
Optional Options:
domain: Cluster failover Domain
autostart: Automatic start after quorum formation
exclusive: Exclusive resource group
recovery: Failure recovery policy
migration_mapping: memberhost:targethost,memberhost:targethost ..
use_virsh: If set to 1, vm.sh will use the virsh command to manage virtual machines instead of xm. This is required when using non-Xen virtual machines (e.g. qemu / KVM).
xmlfile: Full path to libvirt XML file describing the domain.
migrate: Migration type (live or pause, default = live).
path: Path to virtual machine configuration files.
snapshot: Path to the snapshot directory where the virtual machine image will be stored.
depend: Top-level service this depends on, in service:name format.
depend_mode: Service dependency mode (soft or hard).
max_restarts: Maximum restarts for this service.
restart_expire_time: Restart expiration time; amount of time before a restart is forgotten.
status_program: Additional status check program
hypervisor: Hypervisor
hypervisor_uri: Hypervisor URI (normally automatic).
migration_uri: Migration URI (normally automatic).
__independent_subtree: Treat this and all children as an independent subtree.
__enforce_timeouts: Consider a timeout for operations as fatal.
__max_failures: Maximum number of failures before returning a failure to a status check.
__failure_expire_time: Amount of time before a failure is forgotten.
__max_restarts: Maximum number restarts for an independent subtree before giving up.
__restart_expire_time: Amount of time before a failure is forgotten for an independent subtree.
