[20171031]How to find Cluster name on RAC instance.txt

--//如何获得Cluster name,做一个记录:

1.以grid用户登录:

SYS@+ASM1> @ &r/ver
BANNER
--------------------------------------------------------------------------------
Oracle Database 11g Enterprise Edition Release 11.2.0.4.0 - 64bit Production

$  which cemutlo
/u01/app/11.2.0.4/grid/bin/cemutlo

$  echo $ORACLE_HOME
/u01/app/11.2.0.4/grid

$  cemutlo
Usage: /u01/app/11.2.0.4/grid/bin/cemutlo.bin [-n] [-w]
        where:
        -n prints the cluster name
        -w prints the clusterware version in the following format:
                 <major_version>:<minor_version>:<vendor_info>

$  cemutlo -n -w
xxhospital
2:1:

2.还可以使用olsnodes命令

$  which olsnodes
/u01/app/11.2.0.4/grid/bin/olsnodes

$  olsnodes -h
Usage: olsnodes [ [-n] [-i] [-s] [-t] [<node> | -l [-p]] | [-c] ] [-g] [-v]
        where
                -n print node number with the node name
                -p print private interconnect address for the local node
                -i print virtual IP address with the node name
                <node> print information for the specified node
                -l print information for the local node
                -s print node status - active or inactive
                -t print node type - pinned or unpinned
                -g turn on logging
                -v Run in debug mode; use at direction of Oracle Support only.
                -c print clusterware name

$  olsnodes -c
xxhospital

$  olsnodes -c -v
lang init : Initializing LXL global
main: Initializing CLSS context
get cluster name: Get cluster nameprint data: Printing the node data
print data: lsdata has nodename = null
xxhospital
main: olsnodes executed successfully
term: Terminating LSF