Oracle Clusterware is a software component provided by Oracle Corporation that enables the management and coordination of multiple servers in a cluster environment. It provides high availability and scalability for Oracle databases and other applications by allowing multiple servers to work together as a single system. Oracle Clusterware handles tasks such as node membership, resource management, and failure detection and recovery within the cluster.
In all the commands I suppose crsctl is in your path
$GRID_HOME/bin/crsctl
This is the list of Oracle crsctl commands you need to use to manage your Oracle clusterware.
To check all the crs resources:
crsctl stat res -t -init
crsctl stat res -t
Sometimes the services might not even be up or down but in the Unknown state or intermediary state.
crsctl stat res -t -w "((TARGET != ONLINE) or (STATE != ONLINE)"
To search for a given name
crsctl status res -t -w "NAME co bas01nfi"
To stop the Oracle Clusterware on the local node
crsctl stop crs [-f]
Use -f to force the stop.
To disable Oracle Clusterware, so that it does not start when rebooting a node
crsctl disable crs
Then if you want to enable it again
crsctl enable crs
And to start the crs again
crsctl start crs
Status, Configuration and Checking cluster resources
crsctl check crs # Status CRS Services
crsctl check cluster -n rac2 # Status Cluster Services
crsctl check ctss # Status The Cluster Time Synchronization Service
crsctl config crs (requires root) # checks if Oracle High Availability Services autostart is enabled
crsctl stat res ora.rac.db -p # Print static configuration
crsctl stat res ora.rac.db -f # Print full configuration
crsctl query css votedisk # Voting Disks Status
olsnodes -n -i -s -t # List Cluster Nodes
oifcfg getif # Info about network Interfaces
ocrcheck # Status OCR (execute as root to check logical corruption)
ocrcheck -local (requires root) # OCR Status with CRS/OHAS OFFLINE
ocrconfig -showbackup # Backup info about OCR
ocrconfig -add +TEST # Create a copy of OCR in another Diskgroup
cluvfy comp crs -n rac1 # Verify CRS Integrity