Which three statements are correct about the Oracle local Registry?
A.
OLR is Installed and configured when Oracle Clusterware Installs OCR.
B.
OLR was introduced in Oracle Database 11g Release 1.
C.
OLR is located at Grid _home/cdata/hostname.olr on each node.
D.
OLR can reside on a maximum of three nodes in the cluster.
E.
You can manage OLR using the ocrcheck, ocrdump, and ocrconfig utilities with the –local
option.
Explanation:
C: The olr.loc file consist of the OLR config file location and the crs_home location.
So, by default the location is , olrconfig_loc =<GRID_HOME>/cdata/<hostname>.olr.
E: Examples:
To manually back up OLR:
# ocrconfig –local –manualbackup
To view the contents of the OLR backup file:
ocrdump -local -backupfile olr_backup_file_name
To change the OLR backup location:ocrconfig -local -backuploc new_olr_backup_path
To restore OLR:
# crsctl stop crs
# ocrconfig -local -restore file_name
# ocrcheck -local
# crsctl start crs
$ cluvfy comp olr
Incorrect:
Not B: From 11gR2 Oracle introduced “Oracle Local Registry(OLR)”, something new as part of
Oracle Clusterware
Reference: Oracle Local Registry (OLR) – 11gR2