difference between ocr and voting disk

Helpful tips . if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[336,280],'techgoeasy_com-box-4','ezslot_3',192,'0','0'])};__ez_fad_position('div-gpt-ad-techgoeasy_com-box-4-0');1)If it is stored in ASM, no need to configure manually as the files will be created depending on the redundancy in ASM. The new OCR file, device, or disk group must be accessible from all of the active nodes in the cluster. voting disk (LogOut/ srvctl start diskgroup -g OCR_NEWDG -n NODE01,NODE02, --Check Status However, if you upgrade from a previous Oracle Clusterware release, then you can continue to use raw or block devices. For example, if you ran the ocrconfig -restore command on node 1 of a four-node cluster, then you must run the ocrconfig -repair -replace command on nodes 2, 3, and 4. This post has been answered by user00726 on Sep 7 2010. Repair an OCR location if Oracle Database displays an OCR failure alert in Oracle Enterprise Manager or in the Oracle Clusterware alert log file, as described in the "Repairing an Oracle Cluster Registry Configuration on a Local Node" section. What is voting disks in RAC Ensure there is at least 280 MB of space on the mount partition. It contains key value pairs of various resources in the cluster. Oracle Automatic Storage Management Administrator's Guide, Oracle Grid Infrastructure Installation Guide, "Troubleshooting Oracle Cluster Registry", "Adding an Oracle Cluster Registry Location", "Replacing an Oracle Cluster Registry Location", "Repairing an Oracle Cluster Registry Configuration on a Local Node", "Removing an Oracle Cluster Registry Location", Appendix G, "Oracle Cluster Registry Utility Reference", "Administering Oracle Cluster Registry with Oracle Cluster Registry Export and Import Commands", Appendix A, "Cluster Verification Utility Reference", "Adding, Deleting, or Migrating Voting Disks". Oracle Automatic Storage Management Administrator's Guide for more information about disk group redundancy and quorum failure groups, "Adding, Deleting, or Migrating Voting Disks" for information about migrating voting disks. Voting files. Oracle strongly recommends that you mirror OCR if the underlying storage is not RAID. To replace all voting disks not stored in Oracle ASM with voting disks managed by Oracle ASM in an Oracle ASM disk group, run the following command: Modifying voting disks that are not stored on Oracle ASM: To display the voting disk FUID and file path of each current voting disk, run the following command: This command returns a disk sequence number, the status of the disk, the FUID, and the path of the disk and no name of an Oracle ASM disk group. OCR Oracle Cluster Registry (OCR) and Oracle Local Registry (OLR) Oracle Cluster Registry (OCR) and Oracle Local Registry (OLR) are two very important components of a Grid Infrastructure that help manage the cluster resources. WebOracle RAC uses two storage locations, which can be accessed by all cluster members: The Oracle Cluster Registry (OCR) Contains information for managing the cluster The Voting Disk Contains information to determine which nodes are active members of the cluster at any given moment In Oracle RAC 10gRelease 2, these storage locations can If you have only one OCR location configured and online, then you must first add a new location and then delete the failed location, as follows: It may be necessary to repair OCR if your cluster configuration changes while that node is stopped and this node is the only member in the cluster. As a definitive verification that OCR failed, run ocrcheck and if the command returns a failure message, then both the primary OCR and the OCR mirror have failed. There is an API provided for this function (ocrconfig and crsctl), which is the appropriate interface In addition to using the automatically created OCR backup files, you should also export OCR contents before and after making significant configuration changes, such as adding or deleting nodes from your environment, modifying Oracle Clusterware resources, and upgrading, downgrading or creating a database. Hi all, What is the difference b/w OCR and Voting Disk. Will install binaries on local disk and use SAN for Voting disk, OCR and ASM. WebOracle recommends just two diskgroups by default: A DATA diskgroup to hold all data, index, undo and temp files. Voting disk management requires a valid and working OCR. Voting Disk. Cloud Applications; Cloud Infrastructure; On-Premise Applications; E-Business Suite; OCR Ocr For example, if two-way mirroring is specified for a file, then redundant copies of file extents must be stored in separate failure groups. --Connect with Grid User Successful addition of voting disk 34b3f9458e042b58eb8b601523fb6ef2. Voting Disk col path for a30 However, Oracle recommends using several failure groups. Check the Voting Disk Location You cannot customize the backup frequencies or the number of files that Oracle Database retains. OCR is used in a variety of applications, such as scanning documents and recognizing text in images. You can just replace with new voting file on disk group DATA. Oracle Difference between This is called NETWORK HEARTBEAT. 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. WebThe voting disk is a file that manages information about node membership, and the OCR is a file that manages cluster and Oracle RAC database configuration information. Is it illegal to lie about a felony on an application? such as Oracle RAC databases, listeners, virtual IP addresses (VIPs), and services and any applications. Verify the VotingDisk movement on both nodes. The number of voting files you can store in a particular Oracle ASM disk group depends upon the redundancy of the disk group. When exporting OLR, Oracle recommends including "olr", the host name, and the timestamp in the name string. srvctl status diskgroup -g OCR_NEWDG The destination of OCR file has been replaced. Depending on where you store your voting files, do one of the following: If the voting disks are stored in Oracle ASM, then run the following command to migrate the voting disks to the Oracle ASM disk group you specify: The Oracle ASM disk group to which you migrate the voting files must exist in Oracle ASM. The Oracle Clusterware installation process creates the voting disk and the OCR on shared storage. If you did not store voting disks in Oracle ASM, then run the following command using the File Universal Identifier (FUID) obtained in the previous step: Stop the Oracle Clusterware stack as root: Restart the Oracle Clusterware stack in normal mode as root: You can add, remove, and migrate voting disks after you install Oracle Clusterware. It records the data where marks are made on the form. 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. It stands for Optical Character Reader or Optical Character Recognition. Note that the commands you use to do this are different, depending on whether your voting disks are located in Oracle ASM, or are located in another storage option. The ocrconfig -replace command requires that at least two OCR locations are configured. (Both primary and mirrors)2. Oracle Local Registry is OCRs local counterpart. Comments. To migrate voting disks from Oracle ASM to an alternative storage device, specify the path to the non-Oracle ASM storage device with which you want to replace the Oracle ASM disk group using the following command: You can run this command on any node in the cluster. Modifying voting disks that are stored in Oracle ASM. Repairing an OCR involves either adding, deleting, or replacing an OCR location. Successful addition of voting disk B6FF6C1D64B9837D82B1B41D38760445. "OCRDUMP Utility Syntax and Options" for more information about the OCRDUMP utility, "Using the OCRCHECK Utility" for more information about the OCRCHECK utility. CSSD is a mutithreaded process.So it use various thread to monitor the heart beat. 2. This section describes how to manage OCR and the Oracle Local Registry (OLR) with the following utilities: OCRCONFIG, OCRDUMP, and OCRCHECK. Oracle Cluster Registry Network heartbeat is successful, but disk heartbeat is missed.2. Recover the Oracle voting disk when its In addition to maintaining its own disk block, CSSD processes also monitor the disk block maintained by the CSSD processes of other nodes in the cluster. Optical Mark Reader (OMR) is the technology of electronically extracting data from marked fields such as checkboxes or bubbles from pre-printed forms. There is an API provided for this function (ocrconfig and crsctl), which is the appropriate interface than typical cp and/or dd commands.It is highly recommended to take a backup of the voting disk, and OCR device before making any changes.