How do I start an ASM instance?

How do I start an ASM instance?

Startup 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 start ASM instance with Srvctl?

  1. Run the srvctl add database command to register the Oracle Database(s) that is running on the nodes.
  2. Login to the Oracle ASM instance running on the remote node.
  3. Run the SQL> ALTER disk group mount command to mount the Oracle ASM disk groups.
  4. Repeat Step 3 to mount all the required disk groups.

How do you check ASM instance is up or not?

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 start and stop my CRS?

To stop cluster resources of the local node, run the following command: [root@dbn01 ~]# /u01/app/11.2. 0/grid/bin/crsctl stop crs CRS-2791: Starting shutdown of Oracle High Availability Services-managed resources on ‘dbn01’ CRS-2673: Attempting to stop ‘ora.

How do I start Oracle High Availability Services?

  1. Step 1: Prepare the New Cluster Nodes.
  2. Step 2: Deploy the Oracle Grid Infrastructure Home on the Destination Nodes.
  3. Step 3: Run the Script on Each Destination Node.
  4. Step 4: Launch the Configuration Wizard.

What is Startup Nomount in Oracle?

The Startup (nomount) Stage During the nomount stage, Oracle first opens and reads the initialization parameter file (init. ora) to see how the database is configured. For example, the sizes of all of the memory areas in Oracle are defined within the parameter file.

How do I shutdown an ASM instance?

If Oracle Cluster Registry (OCR) or voting files are stored in a disk group, the disk group can only be dismounted by shutting down the Oracle ASM instance as part of shutting down the clusterware on a node. To shut down the clusterware, run crsctl stop crs .

How do I find my ASM instance?

How do I check ASM disk?

select group_number, name, state, type from v$asm_diskgroup;

  1. To check the asm instance is connected and running:
  2. To check the asm disks and their status:
  3. MISSING – Automatic Storage Management metadata indicates that the disk is known to be part of the Automatic Storage Management disk group, but no disk in the storage.

How do I start CRS forcefully?

The basic steps to start the CRS include these startup actions:.

  1. Enable the crs, css, and evm daemons in /etc/inittab.
  2. Execute /etc/init.d/ enable.
  3. Execute /etc/init.d/ start.
  4. Execute $ORA_CRS_HOME/bin/crsctl start crs.

What is difference between Crsctl stop CRS and Crsctl stop cluster?

As per my understanding : crsctl stop cluster –> Stop HA services on local node. crsctl stop cluster -all –> Stop HA services on all nodes. crsctl stop crs –> stop HA services on local nodes.

What is Oracle High Availability Services?

OHAS is implemented via a new daemon process which is called ohasd on the OS layer, and the 11g documentation notes that this Oracle High Availability Services Daemon (OHASD) anchors the lower part of the Oracle Clusterware stack, which consists of processes that facilitate cluster operations in RAC databases.