Which three utilities can be used for managing the OCR?
A.
OCRCHECK
B.
OCRDUMP
C.
CRSCTL
D.
OCRCMD
E.
SRVCTL
F.
OCRCONFIG
Explanation:
C: You can use crsctl commands as the root user to enable dynamic debugging for Oracle
Clusterware, the Event Manager (EVM), and the clusterware subcomponents. You can also
dynamically change debugging levels using crsctl commands. Debugging information remains in
the Oracle Cluster Registry (OCR) for use during the next startup.
E: The Server Control (SRVCTL) utility is installed on each node by default. You can use SRVCTL
to start and stop the database and instances, manage configuration information, and to move or
remove instances and services. You can also use SRVCTL to add services. SRVCTL also
manages configuration information.
Some SRVCTL operations store configuration information in the Oracle Cluster Registry (OCR).
F: Use the ocrconfig command to manage OCR. Using this utility you can import, export, add,
delete, restore, overwrite, backup, repair, replace, move, upgrade, or downgrade OCR.
Note:
* Oracle Cluster Registry (OCR)
A,B,F
https://docs.oracle.com/cd/E11882_01/rac.112/e41959/ocrsyntax.htm#CWADD92362
Use the ocrconfig command to manage OCR. Using this utility you can import, export, add, delete, restore, overwrite, backup, repair, replace, move, upgrade, or downgrade OCR.
The OCRCHECK utility displays the version of the OCR’s block format, total space available and used space, OCRID, and the OCR locations that you have configured.
OCRCHECK performs a block-by-block checksum operation for all of the blocks in all of the OCRs that you have configured.
It also returns an individual status for each file and a result for the overall OCR integrity check.
The OCRDUMP utility enables you to view OCR and OLR contents by writing the content to a file or stdout in a readable format.
A,B,F
https://docs.oracle.com/cd/E11882_01/rac.112/e41959/votocr.htm#CWADD70700
Managing Oracle Cluster Registry and Oracle Local Registry:
This section describes how to manage OCR and the Oracle Local Registry (OLR) with the following utilities: OCRCONFIG, OCRDUMP, and OCRCHECK.