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20 February, 2017

12cR1 RAC Posts -- 6 :Running the Cluster Verification Utility

With a successful RAC Cluster, running the Cluster Verification Utility

[oracle@collabn1 ~]$ cluvfy stage -post crsinst -n collabn1,collabn2

Performing post-checks for cluster services setup

Checking node reachability...
Node reachability check passed from node "collabn1"


Checking user equivalence...
User equivalence check passed for user "oracle"

Checking node connectivity...

Checking hosts config file...

Verification of the hosts config file successful

Check: Node connectivity using interfaces on subnet "192.168.78.0"
Node connectivity passed for subnet "192.168.78.0" with node(s) collabn2,collabn1
TCP connectivity check passed for subnet "192.168.78.0"


Check: Node connectivity using interfaces on subnet "172.16.100.0"
Node connectivity passed for subnet "172.16.100.0" with node(s) collabn1,collabn2
TCP connectivity check passed for subnet "172.16.100.0"

Checking subnet mask consistency...
Subnet mask consistency check passed for subnet "192.168.78.0".
Subnet mask consistency check passed for subnet "172.16.100.0".
Subnet mask consistency check passed.

Node connectivity check passed

Checking multicast communication...

Checking subnet "172.16.100.0" for multicast communication with multicast group "224.0.0.251"...
Check of subnet "172.16.100.0" for multicast communication with multicast group "224.0.0.251" passed.

Check of multicast communication passed.

Checking whether the ASM filter driver is active and consistent on all nodes
ASM filter driver library is not installed on any of the cluster nodes.
ASM filter driver configuration was found consistent across all the cluster nodes.
Time zone consistency check passed

Checking Cluster manager integrity...


Checking CSS daemon...
Oracle Cluster Synchronization Services appear to be online.

Cluster manager integrity check passed


UDev attributes check for OCR locations started...
UDev attributes check passed for OCR locations


UDev attributes check for Voting Disk locations started...
UDev attributes check passed for Voting Disk locations

Default user file creation mask check passed

Checking cluster integrity...


Cluster integrity check passed


Checking OCR integrity...

Checking the absence of a non-clustered configuration...
All nodes free of non-clustered, local-only configurations


Checking daemon liveness...
Liveness check passed for "CRS daemon"

Checking OCR config file "/etc/oracle/ocr.loc"...

OCR config file "/etc/oracle/ocr.loc" check successful


Disk group for ocr location "+OCRVOTE/collabn-cluster/OCRFILE/registry.255.934671619" is available on all the nodes


Checking OCR backup location "/u01/app/12.1.0/grid/cdata/collabn-cluster"

OCR backup location "/u01/app/12.1.0/grid/cdata/collabn-cluster" check passed

NOTE:
This check does not verify the integrity of the OCR contents. Execute 'ocrcheck' as a privileged user to verify the contents of OCR.

OCR integrity check passed

Checking CRS integrity...

Clusterware version consistency passed.

CRS integrity check passed

Checking node application existence...

Checking existence of VIP node application (required)
VIP node application check passed

Checking existence of NETWORK node application (required)
NETWORK node application check passed

Checking existence of ONS node application (optional)
ONS node application check passed


Checking Single Client Access Name (SCAN)...

Checking TCP connectivity to SCAN listeners...
TCP connectivity to SCAN listeners exists on all cluster nodes

Checking name resolution setup for "collabn-cluster-scan.racattack"...

Checking integrity of name service switch configuration file "/etc/nsswitch.conf" ...
All nodes have same "hosts" entry defined in file "/etc/nsswitch.conf"
Check for integrity of name service switch configuration file "/etc/nsswitch.conf" passed


Checking SCAN IP addresses...
Check of SCAN IP addresses passed

Verification of SCAN VIP and listener setup passed

Checking OLR integrity...
Check of existence of OLR configuration file "/etc/oracle/olr.loc" passed
Check of attributes of OLR configuration file "/etc/oracle/olr.loc" passed

WARNING:
This check does not verify the integrity of the OLR contents. Execute 'ocrcheck -local' as a privileged user to verify the contents of OLR.

OLR integrity check passed

Checking Oracle Cluster Voting Disk configuration...

Oracle Cluster Voting Disk configuration check passed

User "oracle" is not part of "root" group. Check passed
Oracle Clusterware is installed on all nodes.
CTSS resource check passed
Query of CTSS for time offset passed

CTSS is in Active state. Proceeding with check of clock time offsets on all nodes...
Check of clock time offsets passed


Oracle Cluster Time Synchronization Services check passed
Checking VIP configuration.
Checking VIP Subnet configuration.
Check for VIP Subnet configuration passed.
Checking VIP reachability
Check for VIP reachability passed.

Post-check for cluster services setup was successful.
[oracle@collabn1 ~]$
[oracle@collabn1 ~]$ su
Password:
[root@collabn1 oracle]# ocrcheck
Status of Oracle Cluster Registry is as follows :
         Version                  :          4
         Total space (kbytes)     :     409568
         Used space (kbytes)      :       1688
         Available space (kbytes) :     407880
         ID                       :  827167720
         Device/File Name         :   +OCRVOTE
                                    Device/File integrity check succeeded

                                    Device/File not configured

                                    Device/File not configured

                                    Device/File not configured

                                    Device/File not configured

         Cluster registry integrity check succeeded

         Logical corruption check succeeded

[root@collabn1 oracle]#
[root@collabn1 oracle]# ocrcheck -local
Status of Oracle Local Registry is as follows :
         Version                  :          4
         Total space (kbytes)     :     409568
         Used space (kbytes)      :       1028
         Available space (kbytes) :     408540
         ID                       : 1014277103
         Device/File Name         : /u01/app/12.1.0/grid/cdata/collabn1.olr
                                    Device/File integrity check succeeded

         Local registry integrity check succeeded

         Logical corruption check succeeded

[root@collabn1 oracle]#



[root@collabn2 oracle]# ocrcheck -local
Status of Oracle Local Registry is as follows :
         Version                  :          4
         Total space (kbytes)     :     409568
         Used space (kbytes)      :        796
         Available space (kbytes) :     408772
         ID                       : 1896774486
         Device/File Name         : /u01/app/12.1.0/grid/cdata/collabn2.olr
                                    Device/File integrity check succeeded

         Local registry integrity check succeeded

         Logical corruption check succeeded

[root@collabn2 oracle]#


The "cluvfy stage -post crsinst" command as the Grid Infrastructure user checks the status of all components after the installation and configuration of the Cluster.  Note : This does not and cannot check any database (RAC or non-RAC) that is created.

The "ocrcheck" commands by root are to check the integrity of the Cluster Registry and Local Registry.  (You would run "ocrcheck -local" on each node of the Cluster).

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