RAC : Flex Cluster Useful Commands

Written By askMLabs on Wednesday, March 12, 2014 | 10:31 AM

[grid@rac12cnode1 ~]$ which crsctl
/u01/app/12.1.0/grid/bin/crsctl
[grid@rac12cnode1 ~]$ crsctl get cluster mode status
Cluster is running in "flex" mode <== Note that the cluster is in flex mode
[grid@rac12cnode1 ~]$ olsnodes
rac12cnode1
rac12cnode2
rac12cnode3
rac12cnode4
[grid@rac12cnode1 ~]$ srvctl config gns
GNS is enabled. <= GNS is enabled in flex cluster
[grid@rac12cnode1 ~]$ srvctl config gns -detail
GNS is enabled.
GNS is listening for DNS server requests on port 53
GNS is using port 5,353 to connect to mDNS
GNS status: OK
GNS version: 12.1.0.1.0
Globally unique identifier of the cluster where GNS is running: 68a8c394a9e27f58ff447892d2693872
Name of the cluster where GNS is running: crs64bit12c
Cluster type: server.
GNS log level: 1.
GNS listening addresses: tcp://192.168.1.140:24363.
[grid@rac12cnode1 ~]$ oifcfg getif
eth0 192.168.1.0 global public
eth1 10.10.10.0 global cluster_interconnect
eth2 10.11.0.0 global asm <== Separate private network for storage in flex cluster
[grid@rac12cnode1 ~]$ crsctl get node role config
Node 'rac12cnode1' configured role is 'hub' <== This node is a hub node
[grid@rac12cnode1 ~]$ asmcmd showclustermode
ASM cluster : Flex mode enabled
[grid@rac12cnode1 ~]$ asmcmd showclusterstate
Normal
[grid@rac12cnode1 ~]$ srvctl status asm -detail
ASM is running on rac12cnode1,rac12cnode2,rac12cnode3 <== Note that ASM is only running on hub nodes
ASM is enabled.
[grid@rac12cnode1 ~]$ olsnodes
rac12cnode1
rac12cnode2
rac12cnode3
rac12cnode4
[grid@rac12cnode1 ~]$ olsnodes -s
rac12cnode1 Active
rac12cnode2 Active
rac12cnode3 Active
rac12cnode4 Active <== Note that the leaf node is also active participant in cluster
[grid@rac12cnode1 ~]$ srvctl config asm
ASM home: /u01/app/12.1.0/grid
Password file: +DATA/orapwASM
ASM listener: LISTENER
ASM instance count: 3 <== ASM instance count is equal to the hub nodes
Cluster ASM listener: ASMNET1LSNR_ASM <== Note this new listener in 12c
[grid@rac12cnode1 ~]$ crsctl status res -t
--------------------------------------------------------------------------------
Name Target State Server State details
--------------------------------------------------------------------------------
Local Resources
--------------------------------------------------------------------------------
ora.ASMNET1LSNR_ASM.lsnr <== New in 12c
ONLINE ONLINE rac12cnode1 STABLE
ONLINE ONLINE rac12cnode2 STABLE
ONLINE ONLINE rac12cnode3 STABLE
ora.DATA.dg
ONLINE ONLINE rac12cnode1 STABLE
ONLINE ONLINE rac12cnode2 STABLE
ONLINE ONLINE rac12cnode3 STABLE
ora.LISTENER.lsnr
ONLINE ONLINE rac12cnode1 STABLE
ONLINE ONLINE rac12cnode2 STABLE
ONLINE ONLINE rac12cnode3 STABLE
ora.LISTENER_LEAF.lsnr <== New in 12c
OFFLINE OFFLINE rac12cnode4 STABLE
ora.net1.network
ONLINE ONLINE rac12cnode1 STABLE
ONLINE ONLINE rac12cnode2 STABLE
ONLINE ONLINE rac12cnode3 STABLE
ora.ons
ONLINE ONLINE rac12cnode1 STABLE
ONLINE ONLINE rac12cnode2 STABLE
ONLINE ONLINE rac12cnode3 STABLE
ora.proxy_advm <== New in 12c
ONLINE ONLINE rac12cnode1 STABLE
ONLINE ONLINE rac12cnode2 STABLE
ONLINE ONLINE rac12cnode3 STABLE
--------------------------------------------------------------------------------
Cluster Resources
--------------------------------------------------------------------------------
ora.LISTENER_SCAN1.lsnr
1 ONLINE ONLINE rac12cnode2 STABLE
ora.asm
1 ONLINE ONLINE rac12cnode1 STABLE
2 ONLINE ONLINE rac12cnode2 STABLE
3 ONLINE ONLINE rac12cnode3 STABLE
ora.cvu
1 ONLINE ONLINE rac12cnode2 STABLE
ora.gns
1 ONLINE ONLINE rac12cnode2 STABLE
ora.gns.vip
1 ONLINE ONLINE rac12cnode2 STABLE
ora.oc4j
1 OFFLINE OFFLINE STABLE
ora.orcl.db <== Note that DB is running only on hub nodes, not on leaf nodes
1 ONLINE ONLINE rac12cnode1 Open,STABLE
2 ONLINE ONLINE rac12cnode2 Open,STABLE
3 ONLINE ONLINE rac12cnode3 Open,STABLE
ora.rac12cnode1.vip
1 ONLINE ONLINE rac12cnode1 STABLE
ora.rac12cnode2.vip
1 ONLINE ONLINE rac12cnode2 STABLE
ora.rac12cnode3.vip
1 ONLINE ONLINE rac12cnode3 STABLE
ora.scan1.vip
1 ONLINE ONLINE rac12cnode2 STABLE
--------------------------------------------------------------------------------
[grid@rac12cnode1 ~]$
[grid@rac12cnode1 ~]$ crsctl get cluster mode config
Cluster is configured as "flex"
[grid@rac12cnode1 ~]$ crsctl get cluster mode status
Cluster is running in "flex" mode
[grid@rac12cnode1 ~]$
[grid@rac12cnode1 ~]$ crsctl get node role config -all
Node 'rac12cnode1' configured role is 'hub'
Node 'rac12cnode2' configured role is 'hub'
Node 'rac12cnode3' configured role is 'hub'
Node 'rac12cnode4' configured role is 'leaf'
[grid@rac12cnode1 ~]$ crsctl get node role status -all
Node 'rac12cnode1' active role is 'hub'
Node 'rac12cnode2' active role is 'hub'
Node 'rac12cnode3' active role is 'hub'
Node 'rac12cnode4' active role is 'leaf'
[grid@rac12cnode1 ~]$ crsctl get node role config -node rac12cnode3
Node 'rac12cnode3' configured role is 'hub'
[grid@rac12cnode1 ~]$ crsctl get node role status -node rac12cnode3
Node 'rac12cnode3' active role is 'hub'
[grid@rac12cnode1 ~]$ crsctl get node role status -node rac12cnode4
Node 'rac12cnode4' active role is 'leaf'
[grid@rac12cnode1 ~]$ crsctl get node role config -node rac12cnode4
Node 'rac12cnode4' configured role is 'leaf'
[grid@rac12cnode1 ~]$

The above commands are just some of the new command options introduced in 12c.

Hope This Helps
SRI

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