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
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