Oracle Cluster Registry (OCR) and Oracle Local Registry (OLR)
ocrcheck command in RAC
==============================
[root@rac1 bin]# ./ocrcheck -help
Name:
ocrcheck - Displays health of Oracle Cluster/Local Registry.
Synopsis:
ocrcheck [-config | -backupfile <backupfilename>] [-details] [-local]
-config Displays the configured locations of the Oracle Cluster Registry.
This can be used with the -local option to display the configured
location of the Oracle Local Registry
-details Displays detailed configuration information.
-local The operation will be performed on the Oracle Local Registry.
-backupfile <backupfilename> The operation will be performed on the backup file.
Notes:
* This command for Oracle Cluster Registry is not supported from a Leaf node.
[root@rac1 bin]#
OCR (Oracle Cluster Registry) information
================================================
The Oracle Clusterware (Oracle Grid Infrastructure GI stack in 11gR2) uses OCR to manage resources and node membership information.
It contains the following information shared across the nodes in the cluster
ASM diskgroups, volumes, filesystems, and instances
RAC databases and instances information
SCAN listeners and local listeners
SCAN VIPs and Local VIPs
Nodes and node applications
User defined resources
[root@rac1 bin]# ./ocrcheck
Status of Oracle Cluster Registry is as follows :
Version : 4
Total space (kbytes) : 491684
Used space (kbytes) : 84796
Available space (kbytes) : 406888
ID : 1718087688
Device/File Name : +DATA
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@rac1 bin]#
[root@rac1 bin]#
[root@rac1 bin]# ./ocrcheck -config
Oracle Cluster Registry configuration is :
Device/File Name : +DATA
[root@rac1 bin]# ./ocrcheck -details
Status of Oracle Cluster Registry is as follows :
Version : 4
Total space (kbytes) : 491684
Used space (kbytes) : 84796
Available space (kbytes) : 406888
ID : 1718087688
Device/File Name : +DATA/rac/OCRFILE/registry.255.993952649
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@rac1 bin]#
[root@rac1 bin]# cat /etc/oracle/ocr.loc
#Device/file +DATA getting replaced by device +DATA/rac/OCRFILE/registry.255.993952649
ocrconfig_loc=+DATA/rac/OCRFILE/registry.255.993952649
local_only=false[root@rac1 bin]#
[root@rac1 bin]#
OLR(Oracle Local Registry) Information
=========================================
Its contains node-specific information required by OHASD . Every node has its own dedicated OLR file.(not shared between the nodes)
[root@rac1 bin]# ./ocrcheck -local
Status of Oracle Local Registry is as follows :
Version : 4
Total space (kbytes) : 491684
Used space (kbytes) : 83164
Available space (kbytes) : 408520
ID : 161118435
Device/File Name : /u01/app/grid/product/18.0.0.0/grid/cdata/rac1.olr
Device/File integrity check succeeded
Local registry integrity check succeeded
Logical corruption check succeeded
[root@rac1 bin]#
[root@rac1 bin]#
[root@rac1 bin]# ./ocrcheck -local -details
Status of Oracle Local Registry is as follows :
Version : 4
Total space (kbytes) : 491684
Used space (kbytes) : 83164
Available space (kbytes) : 408520
ID : 161118435
Device/File Name : /u01/app/grid/product/18.0.0.0/grid/cdata/rac1.olr
Device/File integrity check succeeded
Local registry integrity check succeeded
Logical corruption check succeeded
[root@rac1 bin]#
[root@rac1 bin]# cat /etc/oracle/olr.loc
olrconfig_loc=/u01/app/grid/product/18.0.0.0/grid/cdata/rac1.olr
crs_home=/u01/app/grid/product/18.0.0.0/grid
orplus_config=FALSE
[root@rac1 bin]#
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