Oracle Cluster Registry (OCR) which records cluster configuration information. Run the following command to inspect the contents and verify the integrity of the backup file: You can use any backup software to copy the automatically generated backup files at least once daily to a different device from where the primary OCR resides. to Backup OCR and Voting Disk The ocrconfig -replace command requires that at least two OCR locations are configured. Voting files. Voting Disk, should it be If an Oracle ASM instance fails on any node, then OCR becomes unavailable on that particular node. At least three OCR locations, if OCR is configured on non-mirrored or non-redundant storage. Voting Disk. Hope this sheds some light on what role OCR and OLR play in the Grid Infrastructure. Move the VotingDisk to new diskgroup. In a nutshell, OCR is used by CRSd and OLR by the OHASd. I am installing two node Oracle 11gR1 RAC on Solaris. Perform the following procedure as the root user to remove an OCR location from your Oracle Clusterware environment: Ensure that at least one OCR location other than the OCR location that you are removing is online. Voting Disk, should it be (LogOut/ With the Oracle Clusterware storage residing in an Oracle ASM disk group, you can manage both database and clusterware storage using Oracle Enterprise Manager. SQL> show parameter spfile, [grid@RAC1 ~]$ asmcmd spget Managing Oracle Cluster Registry and Voting Disks Attempt to resolve the cause of the CLSD-1009 and CLSD-1011 messages. An advanced recognition engine is needed for OCR compared to OMR. Fill in your details below or click an icon to log in: You are commenting using your WordPress.com account. Each node reads its KILL BLOCK once per second, if the kill block is not overwritten, the node commits suicide. By using our site, you You can store OCR and voting disks on Oracle Automatic Storage Management (Oracle ASM), or a certified cluster file system. For example: The default backup location for the OLR is in the path Grid_home/cdata/host_name. OCR stores configuration information in a series of key-value pairs in a tree structure. Once an OCR location is created, it does not get updated in the Oracle Restart environment. The voting disk is a file that manages information about node membership, and the OCR is a file that manages the cluster and Real Application Clusters (RAC) database configuration information. Oracle Local Registry is OCRs local counterpart. 1. As shown in the image, there is a co-relation between Voting Disk, OCR and ASM Diskgroup such that during startup, CSS process reads the voting file and signals the CRSD to start. You can just replace with new voting file on disk group DATA. Do this by using the ocrconfig -export command, which exports OCR content to a file format. Repairing an OCR involves either adding, deleting, or replacing an OCR location. It records the data where marks are made on the form. The main difference between OCR and Voting Disk is that OCR is used to convert scanned images of text into digital text, while Voting Disk is used to store the ballot information for an election. [root@primary01 ~]# crsctl replace votedisk +DATA Successful addition of voting disk a6f4735a13a64f60bf31092700473fad. The OLR only supports manual backups.
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