It's a simple note for this article to provide few command aid in the cluster environment:
here is the command and example:
cluvfy comp crs --> check CRS integrity
cluvfy comp nodecon -n all --> check node connectivity in cluster environment
<CRS_HOME>/bin/crs_stat -t --> check CRS stats
hostname:/opt/oracle> cluvfy comp crs
Verifying CRS integrity
Checking CRS integrity...
Checking daemon liveness...
Liveness check passed for "CRS daemon".
Checking daemon liveness...
Liveness check passed for "CSS daemon".
Checking daemon liveness...
Liveness check passed for "EVM daemon".
Checking CRS health...
CRS health check passed.
CRS integrity check passed.
Verification of CRS integrity was successful.
hostname:/opt/oracle> cluvfy comp nodecon -n all
Verifying node connectivity
Checking node connectivity...
Node connectivity check passed for subnet "10.10.10.0" with node(s) host1, host2, host3.
Node connectivity check passed for subnet "146.18.118.128" with node(s) racstress6,racstress5,racstress4.
Suitable interfaces for VIP on subnet "146.18.118.128":
host3 eth0:146.18.118.153 eth0:146.18.118.206
host2 eth0:146.18.118.154 eth0:146.18.118.205
host1 eth0:146.18.118.155 eth0:146.18.118.204
Suitable interfaces for the private interconnect on subnet "10.10.10.0":
host3 bond0:10.10.10.3
host2 bond0:10.10.10.2
host1 bond0:10.10.10.1
Node connectivity check passed.
Verification of node connectivity was successful.
hostname:/opt/oracle/product/crs/10.2.0.3/bin> ./crs_stat -t
Name Type Target State Host
------------------------------------------------------------
ora....22.inst application ONLINE UNKNOWN host2
ora....23.inst application ONLINE UNKNOWN host3
ora....R21.srv application ONLINE UNKNOWN host2
ora....r21.srv application ONLINE UNKNOWN host2
ora....ss4.gsd application ONLINE ONLINE host1
ora....ss4.ons application ONLINE OFFLINE
ora....ss4.vip application ONLINE ONLINE host1
ora....ss5.gsd application ONLINE ONLINE host2
ora....ss5.ons application ONLINE OFFLINE
ora....ss5.vip application ONLINE ONLINE host2
ora....ss6.gsd application ONLINE ONLINE host3
ora....ss6.ons application ONLINE OFFLINE
ora....ss6.vip application ONLINE ONLINE host3
