Instead, each voting disk is placed on a specific disk in the disk group. Difference between Hard Disk Drive (HDD) and Solid State Drive (SSD) (not shared between the nodes). Top 25+ RAC Interview Questions & Answers [ ORACLE TRICKS ] - ACTE Perfection Ace. Exiting watchdog. if any node is not passing heart-beat across other node or voting disk, then that node will be evicted by voting disk. Oracle Clusterware OCR and Voting Disk (19:43) Oracle Clusterware Background Processes (24:50) Setup RAC Nodes on Virtual Box Lab Setup Overview (9:51) . Voting Disk and Oracle Cluster Registry Device Administration. The only difference in the way you use Resource Manager with Oracle RAC is that Resource Manager has instance specific settings. The OLR is a local registry for node specific resources. 48. Q4. An illustration of two photographs. Clicking on Continue displays the MSLT. OCR and Voting disk file: ./ocrconfig -showbackup. The CSS uses the private interconnect for communications as well as the Clusterware voting disks. Problem: RMAN backup job is causing 100% CPU spike on the system What is the difference between Oracle Flex Cluster vs Oracle Flex ASM? Software. Voting hack | Yet Another Oracle Blog - WordPress.com In Oracle Clusterware 11g Release 2 an additional component related to the OCR called the Oracle Local Registry (OLR) is installed on each node in the cluster. Oracle RAC: Debugging node eviction issues - SearchITChannel When you use normal redundancy, Oracle Clusterware automatically maintains two copies of the OCR file and three copies of the voting disk file. However, if they are close, one could find the average of the 20 values (from the first 10 and last 10) and use that as the value for rotation. DBA Finishng Schooll: Nologging and force logging How do I identify the voting disk location #crsctl query css votedisk. cluvfy comp ocr -n all -verbose; Voting disk : it manage information about node membership. Difference between activeversion, releaseversion and softwareversion: Next Topic: Oracle RAC installation: Goto Forum: I have multiple versions so I select "Keep all Previous . Sep. 2. iamoracledba | Learn more and do well OCR has root:oinstall rw-r----Voting disk has oracle:oinstall rw-r----after that i have run the following command. high availability of databases by providing instance failover, media failover features. Debugging Node Eviction Issues. 48. Difference between Twisted Pair Cable and Optical Fiber Cable. Oracle RAC 11gR2 Voting Disk & OCR Backup - DBA Tutorials Each voting disk must be accessible by all nodes in the cluster. Optical mark recognition. How to find Difference between Two Date Coulmns. 47. The prior CSS MISSCOUNT default was 200 secs. Article Tags : Computer Networks; In one of my "screen" console i have the output log from root.sh script and… binary backup file for OCR. Manual backups: - a) can be taken using the "ocrconfig -manualbackup" command. What is the CSS MISSCOUNT value recommendation for 11.2.0.4 RAC? - Dell OCR and Voting disk backup and recovery strategies; Adding a Mirror location for the OCR and Voting disk; Why and how the deadlock situation arises; .