What is VOTING DISK AND OCR IN RAC?
Oracle Clusterware (Cluster Ready Services in 10g/ Cluster Manager in 9i) – provides infrastructure that binds multiple nodes that then operate as single server.
http://onlineappsdba.com/index.php/2008/12/29/rac-basics-crs-voting-disk-ocr-cache-fusion/
OCR and Voting Disk Files. Knowledge Xpert Online (Oracle).
http://toadworld.com/KNOWLEDGE/KnowledgeXpertforOracle/tabid/648/TopicID/RACR2ARC6/Default.aspx
Thread: Voting disk and OCR disk in RAC Planned upgrade has been postponed. More information available here.
https://forums.oracle.com/forums/thread.jspa?threadID=709638
OCR File and Voting Disk Administration by Example - (Oracle 10g) by Jeff Hunter, Sr. Database Administrator
http://www.idevelopment.info/data/Oracle/DBA_tips/Oracle10gRAC/CLUSTER_65.shtml
Oracle DBA Guide. Voting Disk and Cluster Registry. Architecture . What is a Cluster ; Components of RAC; RAC Storage; ASM; raw device; Cluster File system; Voting Disk and Cluster Registry
http://www.oracle-dba-database-administration.com/voting-disk.html
5 Administering Oracle Clusterware Components. This chapter describes how to administer your Oracle Clusterware environment. It describes how to administer the voting disks and the Oracle Cluster Registry (OCR) in the following sections:
http://docs.oracle.com/cd/B19306_01/rac.102/b28759/adminoc.htm
3 Managing Oracle Cluster Registry and Voting Disks. Oracle Clusterware includes two important components that manage configuration and node membership: Oracle Cluster Registry (OCR), which also includes the local component Oracle Local Registry (OLR), and voting disks.
http://download.oracle.com/docs/cd/E11882_01/rac.112/e16794/votocr.htm
In Oracle: OCR file & Voting disk in an Oracle RAC Clusterware - Oracle Real Application Cluster (RAC) - 10g, 11g
http://www.in-oracle.com/Oracle-DBA/RAC/OCR-file-Voting-disk.php
The Oracle Clusterware includes two important components: the voting disk and the Oracle Cluster Registry (OCR). The voting disk is a file that manages information about node membership and the OCR is a file that manages cluster and RAC database configuration information.
http://www.oraclefaq.net/2007/02/05/voting-disk/
What is the process to backup Oracle RAC Clusterware (OCR) with voting disk from NetBackup?
http://www.symantec.com/business/support/index?page=content&id=TECH152628
Explain, Exemplify, Empower (by Uwe Hesse) ... Having just delivered an Oracle Database 11gR2 RAC Admin course, I’d like to point out some remarkable changes in the way we handle now the important Clusterware components Voting Disk and Oracle Cluster Registry (OCR): Amazingly, we can now store ...
http://uhesse.com/2010/10/06/voting-disk-and-ocr-in-11gr2-some-changes/
What is Voting Disk & Split Brain Syndrome in RAC; RAC Installation on NetApps Raw Devices with ASM: Part 1; ... heyy if we have 3 voting disks and 2 OCR then what is the redundancy called ? External redundancy or NORMAL REDUNDANCY .
http://apunhiran.blogspot.com/2009/04/what-is-voting-disk-split-brain.html
Following administrative tasks are performed with the voting disk : 1) Backing up voting disks 2) Recovering Voting disks 3) Adding voting disks
http://oracleinstance.blogspot.com/2009/12/administering-ocr-in-rac.html
OCR: It created at the time of Grid Installation. It’s store information to manage Oracle cluster-ware and it’s component such as RAC database, listener, VIP,Scan IP & Services.
http://onlineappsdba.com/index.php/2012/06/03/voting-disk-and-ocr-in-11gr2/
The voting disk is one such component in 10g RAC that is used to store the hearbeat information between nodes. Like OCR, the voting disk also is a shared disk component that is accessed by the nodes during the cluster operation.
http://oraclezone.wordpress.com/2007/12/28/oracle-rac-clusterware-voting-disks/
OCR file & Voting disk (10g) | Oracle RAC Clusterware presented by Oracle Home.ro. OCR file & Voting disk in an Oracle RAC are very important for the Clusterware mechanism.
http://www.oracle-home.ro/Oracle_Database/RAC/Oracle-RAC-clusterware-OCR-voting-disk.html
Voting Disks In 11g release 2 you no longer have to take voting disks backup. In fact according to Oracle documentation restoration of voting disks that were copied using the ...
http://www.reachdba.com/showthread.php?781-Oracle-RAC-11gR2-Voting-Disks-amp-OCR-Backups
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http://www.linkedin.com/groups/11203-RAC-voting-ocr-disk-3156190.S.87100486
Real Application Clusters (52) 10g R1 (15) 10g R2 (19) 11g R1 (13) 11g R2 (24) 9i (1) RMAN (22) Storage Subsystems (26) EMC (3) IBM (21) ... Explaining: How to store OCR, Voting disks and ASM SPFILE on ASM Diskgroup (RAC or RAC Extended) Posted: ...
http://levipereira.wordpress.com/2012/01/11/explaining-how-to-store-ocr-voting-disks-and-asm-spfile-on-asm-diskgroup-rac-or-rac-extended/
Oracle DBA interview questions and Answers. Updated Weekly. RMAN Questions, AWR Questions, ADDM Questions, ASM Questions. Oracle 10g and Oracle 11g new features explained.
http://oracledbainterviewquestions.blogspot.com/2008/09/what-is-voting-disk-and-ocr.html
While Installing the 2 node RAC DB, I have configured the ASM disks and created a DiskGroup just for OCR and VOting Disks on ASM , but used External Redundancy.
http://oracledba10g11g.blogspot.com/2011/04/112-rac-ocr-and-voting-disk-normal.html
Voting Disks In 11g release 2 you no longer have to take voting disks backup. In fact according to Oracle documentation restoration of voting disks that were copied using the "dd" or "cp" command may prevent your clusterware from starting up.
http://practical-tech.blogspot.com/2012/09/oracle-rac-11gr2-voting-disks-ocr.html
This infrastructure simplifies the requirement for an Oracle Real Application Clusters (RAC) ... The example Oracle Clusterware environment is configured with a single voting disk and a single OCR file on an OCFS2 clustered file system.
http://chandu208.blogspot.com/2011/04/ocr-file-and-voting-disk-administration.html
Both files are managed by the crsd daemon. Voting disk is used for monitoring information for the members of the cluster. OCR is the cluster configuration file and contains everything about the cluster such as list of nodes , mapping between nodes and instances, application profiles ...
http://mikegeorgiou.blogspot.com/2011/08/managing-ocr-and-voting-disk-in-oracle.html
This article examines two important components of Oracle Clusterware, : the voting disk and the Oracle Cluster Registry (OCR).
http://www.databasejournal.com/features/oracle/article.php/3626471/Oracle-RAC-Administration---Part-3-Administering-the-Clusterware-Components.htm
We Need To Backup Voting Disk and OCR For Oracle RAC For Disaster Situation : Add Voting Disk : # crsctl add css votedisk . To remove a voting disk: # crsctl delete css votedisk . If Oracle Clusterware is down on all nodes, use the –force option:
http://osamamustafa.blogspot.in/2012/04/some-basic-to-backup-voting-disk-and.html
7 Responses to “11gR2 RAC Observations – OCR and Voting Disk in ASM” Alice Says: April 12th, 2010 at 2:43 pm. I think the problem is using old version of srvctl to access 11gR2 OCR
http://www.appsdba.com/blog/?p=155
Oracle® Database Oracle Clusterware and Oracle Real Application Clusters Administration and Deployment Guide 10g Release 2 (10.2) B14197-15: Home: Book List: Contents: Index: Master Index: ... The Oracle Clusterware Voting Disk and Oracle Cluster Registry.
http://docs.oracle.com/cd/B19306_01/rac.102/b14197/admcon.htm
Placement of Voting Disk and OCR Files in Oracle RAC - download or readfalse online.
http://www.scribd.com/doc/60433452/Placement-of-Voting-Disk-and-OCR-Files-in-Oracle-RAC
Hi guys, did u use Oracle RAC 10g? How u guys backup your database? obviously u guys using RMAN right? Then, how about your OCR (Oracle Cluster Registry) and voting disk (CSS – Oracle Cluster Synchronization Services)? Since RMAN not
http://faizsulaiman.com/backup-ocr-and-voting-disk-for-oracle-10g/
A long weekend is always a good thing. When you combine that with the ability to literally “get away from it all”, they are even better :) After so many days, am able to publish my work am glad about it.
http://techietraits.blogspot.com/2009/04/ocr-voting-disks-oracle-rac.html
1 What is RAC and how is it different from non RAC databases? 2 Can any application be deployed on RAC? 3 Do you need special hardware to run RAC? 4 How many OCR and voting disks should one have?
http://orafaq.com/wiki/RAC_FAQ
Oracle Real Application clusters allows multiple instances to access a single database, ... (CRS) using the Oracle Cluster Registry (OCR) that records and maintains the cluster and node membership information and the voting disk which acts as a tiebreaker during communication failures.
http://www.datadisk.co.uk/html_docs/rac/architecture.htm
11g R2 RAC : VOTING DISK DEMYSTIFIED Voting disk in 11g. In this post, I will write about voting disk - what does it contain, who ... In this post, I will discuss about Oracle Cluster Registry which is a critical component of RAC.
http://oracleinaction.blogspot.com/2012/12/votedisk.html
can anyone explain me about ocr, voting disks in oracle . Thank you. please also provide me about good links where i can get to know more about these...
http://www.experts-exchange.com/Database/Oracle/Q_24354607.html
The OCR and voting disk must be on a shared device so a local filesystem is not going to work. ... 11g R2 RAC : VOTING DISK DEMYSTIFIED Voting disk in 11g In this post, I will write about voting disk - what does it contain ...
http://oracleinaction.blogspot.com/2012/12/OCR.html
Oracle RAC Clusterware: Voting disks; Oracle RAC Clusterware: OCR Disks; Oracle Undo size: 10g 10.2.0.3 vs 9i 9.2.0.6; ... Oracle Cluster Registry (OCR) is one such component in 10g RAC used to store the cluster configuration information.
http://oraclezone.wordpress.com/2007/12/28/oracle-rac-clusterware-ocr-disks/
Status of Oracle Cluster Registry is as follows : Version : 3 Total space (kbytes) : 262120 Used space (kbytes) : 2744 ... (/OCR/b-rac-cluster/vdsk) [] Change your voting disk to the +DATA diskgroup b-rac1 $ crsctl replace votedisk +DATA
https://blogs.oracle.com/random/entry/11g_r2_moving_your_voting
2 Administering Oracle Clusterware. This chapter describes how to administer the voting disks and the Oracle Cluster Registry (OCR) under the following topics:
http://download.oracle.com/docs/cd/B28359_01/rac.111/b28255/votocr.htm
Home > Oracle Rac > Restoring OCR and Voting Disk on shared storage 11gr2 ... RESTORING VOTING DISK. 1. Make sure that the OCR is restored and valid using ocrcheck 2. Run the following command as root from only one node to start the Oracle Clusterware stack in exclusive mode, ...
http://mdesouza.wordpress.com/2012/01/25/restoring-ocr-and-voting-disk-on-shared-storage-11gr2/
OCR: It created at the time of Grid Installation. It’s store information to manage Oracle cluster-ware and it’s component such as RAC database, listener, VIP,Scan IP & Services.
http://itnewscast.com/applications/voting-disk-and-ocr-management-11gr2-rac
RAC software manages data access and makes consistent image of database. What is Node? ... those are Voting Disk and OCR. What is Voting Disk? Voting Disk is shared disk component. Information of shared storage & nodes reside in Voting Disk.
http://www.dbametrix.com/oracle-rac-dba-basic.html
Managing voting disk Locate voting disk: crsctl query votedisk css oracle:crsctl query css votedisk ## STATE File Universal Id File Name Disk group
http://myoracle4u.blogspot.com/2011/06/administrating-voting-disk-and-ocr.html
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http://www.freelists.org/post/oracle-l/Oracle-RAC-SAN-minimal-LUN-sizes-for-OCRVOTING-disks
All trademarks and copyrights within the FreeLists archives are owned by their respective owners. Everything else ©2000-2012 Avenir Technologies, LLC.
http://www.freelists.org/post/oracle-l/Oracle-RAC-SAN-minimal-LUN-sizes-for-OCRVOTING-disks,2
Below is the procedure I followed and the errors when replacing Oracle 10g RAC OCR, Voting and ASM spfile disks with the new disks from the new storage system.
http://uralural.blogspot.com/2012/03/how-to-replace-oracle-10g-rac-ocr.html
Recreating the Voting disk may not be as easy as written in Metalink. If you work with RAC, you know about Metalink Note 399482.1 : How to recreate OCR/Voting disk accidentally deleted.
http://mrwhatis.com/voting-disk-in-rac.html
The Oracle Cluster Registry in RAC (OCR), Cluster Ready Services (CRS), Management of the Oracle Cluster Registry Backup Files in Real Application Clusters, Restoring the Oracle Cluster Registry on UNIX-Based Systems, Restoring the OCR File from the Automatically Generated OCR Backups
http://dba-oracle.com/real_application_clusters_rac_grid/ocr.htm
VOTING DISK Importance in RAC clusterware: One of the critical files for the Oracle Clusterware is the Voting Disk.The voting disk is generally a file (approximately 20 MB) on cluster-aware storage.
http://learnwithme11g.wordpress.com/2010/03/25/voting-disk-importance-in-rac-clusterware/
How To Change the location of OCR & Voting Disk in 10gR2 Oracle RAC Voting Disk: 1.) Login as root 2.) Shutdown CRS on all nodes: ... Status of Oracle Cluster Registry is as follows : Version : 2 Total space (kbytes) : 262144 Used space (kbytes) : 2812
http://apunhiran.blogspot.com/2008/04/movereplacechange-location-of-ocr.html
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