What will you do if OCR is corrupted?

What will you do if OCR is corrupted?

Reconfigure OCR after an OCR corruption

1. Collect all the data by running script : check_OCR.sh.
2. If a PINNED node was found – unpin the node : pin-and-unpin-a-node/
3. All your old CRS information will be lost – as we assume that your CRS is/was corrupted anyway.

How do I check my OCR?

OCR integrity check passed Verification of OCR integrity was successful. Step 1 :- Stop cluster on each node (as Root user)….Oracle Cluster Registry in RAC (OCR)

1. cluster database instance to node mapping.
2. cluster node list.
3. CRS application resource profiles.
4. Local listener & scan listener.
5. VIP,Scan IP & Services.

What is OCR voting disk?

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. The Oracle Clusterware installation process creates the voting disk and the OCR on a shared storage volume.

How do I backup my OCR files?

How to take OCR backup on 11.2. 0.4

1. Overview. 11g Release 2 on wards voting disk data is automatically backed up in the OCR whenever there is a configuration change.
2. Show Backup.
3. Take OCR backup manually.

What is OCR voting disk Oracle?

The 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. When you use normal redundancy, Oracle Clusterware automatically maintains two copies of the OCR file and three copies of the voting disk file.

What is the full form of OCR?

OCR stands for “Optical Character Recognition.” It is a technology that recognizes text within a digital image. It is commonly used to recognize text in scanned documents and images. OCR software can be used to convert a physical paper document, or an image into an accessible electronic version with text.

What is OCR in RAC?

The purpose of the Oracle Cluster Registry (OCR) is to hold cluster and database configuration information for RAC and Cluster Ready Services (CRS) such as the cluster node list, and cluster database instance to node mapping, and CRS application resource profiles.

What is OCR and voting disk in Oracle RAC?

How do I backup my OCR and Voting disk?

How to Backup OCR and Voting Disk

1. OCR Dumps. Oracle provides an utility ocrconfig to export OCR data to a dump file like this:
2. OCR Backups. Since 11g (11.1), the clusterware backs up OCR automatically every 4 hours by Cluster Ready Services Daemon (CRSD).
3. Use dd Command.
4. Rely on OCR Backups.

What is automatic backup policy for OCR voting disk?

Automatic backups: Oracle Clusterware automatically creates OCR backups every four hours. At any one time, Oracle Database always retains the last three backup copies of OCR. The CRSD process that creates the backups also creates and retains an OCR backup for each full day and at the end of each week.

What will happen if voting disk is down?

If you lose all voting disks, then you will have to keep the CRS daemons down, then only you can add the voting disks. Voting disk is a mean to know that which nodes are still a part of the cluster. If the nodes are not able to follow a majority rule , they would start getting rebooted all the time.

How to open a corrupted document in Excel?

To open a document after a file corruption error: Step 1. Click File > Open > Browse and then go to the location or folder where the document (Word), workbook (Excel), or presentation (PowerPoint) is stored. Step 2, Click the file you want, and then click the arrow next to Open, and click Open and Repair.

What to do if your file is corrupted and unreadable?

If the file or directory is corrupted and unreadable in Windows 10 and it didn’t get resolved with the chkdsk method, then there is an easy solution, the Windows Data Recovery. This utility gets back the maximum possible data from a damaged or corrupt hard drive.

Why does Microsoft Office say corrupted and cannot be opened?

As you can see from the causes listed above, the error message ‘the file is corrupted and cannot be opened’ doesn’t necessarily mean your file is damaged or corrupted. At most times, the files just become inaccessible because there is something wrong with the settings of the new versions of Microsoft Office application.

What to do if a file is corrupted in Windows 10?

Let us get to know about this utility. If the file or directory is corrupted and unreadable in Windows 10 and it didn’t get resolved with the chkdsk method, then there is an easy solution, the Windows Data Recovery. This utility gets back the maximum possible data from a damaged or corrupt hard drive.