Oracle ACE Pro
Oracle Solution Architect
Oracle E-Business Suite
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Oracle Database Administration
Oracle Weblogic Administration
Oracle ACE Pro
Oracle Solution Architect
Oracle E-Business Suite
Oracle Cloud Infrastructure
Oracle Fusion Middleware
Oracle Database Administration
Oracle Weblogic Administration
CREATE USER bkp_user IDENTIFIED BY bkp_user DEFAULT TABLESPACE users TEMPORARY
TABLESPACE temp PROFILE DEFAULT;
GRANT CONNECT TO bkp_user;
GRANT exp_full_database TO bkp_user;
GRANT imp_full_database TO bkp_user;
GRANT recovery_catalog_owner TO bkp_user;
GRANT select_catalog_role TO bkp_user;
GRANT CREATE SESSION TO bkp_user;
$ rman
RMAN> connect target bkp_user/bkp_user
RMAN> backup database;
Note: Script can be written and job can be scheduled to take backup.
Here is the list of key most RMAN commands that are used for Backup and related activities:
LIST Commands are generic RMAN commands that will show/list various types of information when executed within RMAN utility.
RMAN> list backup;
It lists all the backups taken using RMAN utility.
RMAN> list backup of database;
The above command lists out all the (individual) files that are in the backup.
RMAN> list backup of tablespace system;
The above command lists out all the files that are in the backup that belong to the tablespace ‘system’.
RMAN> list backup of control file;
The above command lists out all backups of the control file.
CONFIGURE commands in RMAN are used to configure/setup various initial settings:
RMAN>CONFIGURE RETENTION POLICY TO REDUNDANCY2;
The above commands indicates how many days the backup copies need to be retained. Default is 1 day.
RMAN> CONFIGURE RETENTION POLICY CLEAR;
The above command resets the Retention policy to the default value of 1 day.
CONFIGURE BACKUP OPTIMIZATION ON;
The above command verifies to make sure that identical files are NOT backed up to the device specified.
CONFIGURE BACKUP OPTIMIZATION CLEAR;
The above command resets the Optimization option to the default value.
Show commands are used to show/display the configuration setting values.
RMAN> show all;
The above command shows all the current configuration settings on the screen.
RMAN> show retention policy;
The above command shows the current retention policy.
RMAN> show default device type;
The above command shows the default device type configured for backups.
RMAN> show datafile backup copies;
The above command shows the number of backup copies available in the target database.
Backup commands are the real commands which do the actual backup work.
RMAN> backup database;
The above command backs up the database (target).
RMAN> backup database include current controlfile plus archive log;
The above command backs up the target database and the current control file and archive log files.
Report commands list/report specific information. The difference between report and list command is report command output is in a better format.
RMAN> report obsolete;
The above command reports which backups can be deleted.
Delete commands delete/remove specific items from the server, repository catalog.
RMAN> delete obsolete;
The above command deletes all the backups that are older based on the retention policy setup.
The Voting Disk File is a file on the shared cluster system or a shared raw device file.
Voting disk a key component of clusterware and its failure can lead to inoperability of the cluster.
In RAC at any point in time the clusterware must know which nodes are member of the rso that
Adding |
crsctl add css votedisk <file> |
deleting |
crsctl delete css votedisk <file> |
querying |
crsctl query css votedisk |
Cluster Related Commands |
|
crs_stat -t | Shows HA resource status (hard to read) |
crsstat | Ouptut of crs_stat -t formatted nicely |
ps -ef|grep d.bin | crsd.bin evmd.bin ocssd.bin |
crsctl check crs | CSS,CRS,EVM appears healthy |
crsctl stop crs | Stop crs and all other services |
crsctl disable crs* | Prevents CRS from starting on reboot |
crsctl enable crs* | Enables CRS start on reboot |
crs_stop -all | Stops all registered resources |
crs_start -all | Starts all registered resources |
* These commands update the file /etc/oracle/scls_scr/<node>/root/crsstart which contains the string “enable” or “disable” as appropriate.
Database Related Commands |
|
srvctl start instance -d <db_name> -i <inst_name> | Starts an instance |
srvctl start database -d <db_name> | Starts all instances |
srvctl stop database -d <db_name> | Stops all instances, closes database |
srvctl stop instance -d <db_name> -i <inst_name> | Stops an instance |
srvctl start service -d <db_name> -s <service_name> | Starts a service |
srvctl stop service -d <db_name> -s <service_name> | Stops a service |
srvctl status service -d <db_name> | Checks status of a service |
srvctl status instance -d <db_name> -i <inst_name> | Checks an individual instance |
srvctl status database -d <db_name> | Checks status of all instances |
srvctl start nodeapps -n <node_name> | Starts gsd, vip, listener, and ons |
srvctl stop nodeapps -n <node_name> | Stops gsd, vip and listener |
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