How do I down my ASM instance?

How do I down my ASM instance?

The Oracle ASM shutdown process is initiated when you run the SHUTDOWN command in SQL*Plus. Before you run this command, ensure that the ORACLE_SID environment variable is set to the Oracle ASM SID so that you can connect to the local Oracle ASM instance.

How do I start and stop an ASM instance?

Startup and shutdown the Oracle ASM instance

1. Set the default Oracle_home environment variable to grid home where ASM is installed. EXPORT ORACLE_HOME=/up1/grid/12.2.0/dbhome_1.
2. Connect with sqlplus. SQLPLUS / as sysasm.
3. Start up the Oracle ASM Instance. SQL> STARTUP.
4. Check the spfile location or otherwise set it with.

How do I drop a disk from ASM Diskgroup?

Remove disk from ASM diskgroup. SQL> alter diskgroup ORA_DATA drop disk ORA_DATA_0010 rebalance power 100; 3….Remove Disk from ASM diskgroup in Oracle 19c.

1. Check the ASM disks in ASM DiskGroup.
2. Remove disk from ASM diskgroup.
3. Check the rebalance status.
4. Check the dropped disk from ASM Diskgroup.
5. Delete the ASM Disk.

How do you stop an instance in Srvctl?

Useful srvctl commands

1. STOP DATABASE : SYNTAX – srvctl stop database -d db_name [-o stop_options] where stop_options is normal/immediate(default)/transactional/abort.
2. START DATABASE.
3. STOP AN INSTANCE.
4. START AN INSTANCE.
5. REMOVING DB FROM CRS:
6. ADDING DB IN CRS :
7. REMOVING AN INSTANCE FROM CRS:
8. ADDING AN INSTANCE TO CRS:

How do I add and drop disk to ASM?

select DISK_NUMBER,name ,PATH, MOUNT_DATE from v$asm_disk; Then drop the related disk. alter diskgroup DATA drop disk DATA_0032; You can check the drop and add disk operation status using the v$asm_operation view as follows.

How do I start OHAS?

To enable OHAS for each RAC node, you issue the crsctl enable crs command, and this will cause OHAS to autostart when each node re-boots. To verify that OHAS is running, check for the CRS-4123 message in your alert log: CRS-4123: Oracle High Availability Services has been started.

How do I find my ASM instance?

Verify the ASM setup

1. Change to the Oracle Clusterware/Grid Infrastructure home directory: For Oracle RAC 10g Release 2/Oracle RAC 11g Release 1: # cd $CRS_HOME/bin.
2. Verify the status of ASM on all the nodes in the cluster: # ./srvctl status asm ASM instance +ASM1 is running on node galaxy.

How do I drop a datafile in ASM?

You use the DROP DATAFILE and DROP TEMPFILE clauses of the ALTER TABLESPACE command to drop a single datafile or tempfile. The datafile must be empty. (A datafile is considered to be empty when no extents remain allocated from it.)

How do you stop ASM in Srvctl?

1. SRVCTL command for ASM.
2. To add/remove the ASM Command: srvctl add asm [-l lsnr_name] [-p spfile] [-d asm_diskstring] Command: srvctl remove asm -l [-f] Example: srvctl add asm -l LISTENER_ASM01 -p +diskg_data/spfile.ora Example: srvctl remove asm -l LISTENER_ASM01 -f.

How do I disconnect from instance?

You can type exit or logout to explicitly end your session. Another approach is to use Ctrl + D which will send an EOF to the shell and terminate your session.

How do I transfer files from ASM to non ASM?

Use RMAN to copy the Datafiles from ASM disk group to NON-ASM. Update the controlfile and data dictionary for the database files. Switch Database to specify that a datafile copy is now the current datafile, that is, the datafile pointed to by the control file.

What is redundancy in ASM?

If you specify mirroring for a file, then Oracle ASM automatically stores redundant copies of the file extents in separate failure groups. Failure groups apply only to normal and high redundancy disk groups. You can define the failure groups for each disk group when you create or alter the disk group.