You can change SPFILE settings with Oracle Enterprise Manager or by using the SET clause of the ALTER SYSTEM statement. Note: Modifying the SPFILE using tools other than Oracle Enterprise Manager or SQL*Plus can corrupt the file and prevent database startup.

Simply so, what are some of the RAC specific parameters?

init parameters in Oracle RAC

  • instance_number. Oracle Real Application Clusters (RAC) parameter specifies a unique number that maps the instance.
  • instance_group.
  • thread.
  • cluster_database.
  • cluster_database_instances.
  • cluster_interconnects.
  • remote_listener.
  • local_listener.

One may also ask, how do I create a Spfile from Pfile in RAC? Steps to Recreate spfile from pfile in ASM

  1. STEP 1: Shut down the database cluster.
  2. STEP 2: Start only one instance using existing pfile in nomount state.
  3. STEP 3: Create spfile on ASM from existing pfile.
  4. STEP 4: Shutdown and start the database.
  5. STEP 5: Check the status of the database.

Simply so, how do I update my RAC database?

Main steps :

  1. Check all services are up and running from 11gR2 GRID_HOME.
  2. Perform backup of OCR, voting disk and Database.
  3. Create new directory for installing 12C software on both RAC nodes.
  4. Run “runcluvfy.sh” to verify errors .
  5. Install and upgrade GRID from 11gR2 to 12cR1.
  6. Verify upgrade version.

How do I change the Spfile location in Oracle RAC?

Generally, we don't change SPFILE location of a single-instance database, because it should be found in the default location, $ORACLE_HOME/dbs/spfile$ORACLE_SID.

Here are the steps to change SPFILE location:

  1. Backup Original SPFILE.
  2. Create SPFILE in New Location.
  3. Point to New SPFILE in PFILE.

Related Question Answers

How do you change parameters in Spfile?

In order to modify the spfile in oracle database, do one of the following:
  1. Use the ALTER SYSTEM command to modify the SPFILE currently in use. To determine if an spfile is being used: SQL> select value from v$parameter where name='spfile'
  2. Use the export method. Export the SPFILE to a PFILE.

Why do we create pfile from Spfile?

A PFILE is necessary in order to create a SPFILE to enable persistent initialization parameters. If you already have a SPFILE, a PFILE can be generated from it using one of the following.

How do I change the Spfile on ASM?

How to Modify an Existing ASM Spfile in a RAC Environment
  1. Shutdown +ASM2 instance on second node, or if multiple node RAC, all ASM instances on each node except node 1:
  2. Then, on node 1, connect to +ASM1 instance.
  3. Create a modified ASM pfile.
  4. Start up the +ASM1 instance on the first node:
  5. Check if the ASM diskgroups are mounted properly or not:
  6. Create the spfile:

How do I run a database using Spfile?

Migrating to spfile from a pfile consists of 2 steps:
  1. Create the spfile from the existing pfile using: SQL> CREATE SPFILE FROM PFILE='d:init. ora'; File created.
  2. Restart the database to start using the newly created spfile. SQL> STARTUP ORACLE instance started.

Which parameter do you set to TRUE to start an Oracle RAC database in cluster mode?

Each instance of the Oracle RAC database gets a unique value when setting the CLUSTER_INTERCONNECTS initialization parameter. Oracle Database uses the INSTANCE_NUMBER parameter to distinguish among instances at startup and the INSTANCE_NAME parameter to assign redo log groups to specific instances.

How can I upgrade my 12c RAC to 19c?

Steps to upgrade Grid
  1. Review the pre-upgrade checklist.
  2. Download 19c Grid software.
  3. Run the Orachk readiness assessment.
  4. Apply mandatory 19c patches.
  5. Run the cluster verification utility.
  6. Dry-run upgrade.
  7. Upgrade Grid.
  8. Verify Grid upgrade.

How can I upgrade my RAC database from 12c to 19c?

Below is the high level steps:
  1. Installing Oracle 19.3. 0.0 binaries.
  2. Executing the preupgrade jar tool.
  3. Performing the preupgrade actions.
  4. Backing up the database / Create a guaranteed restore point.
  5. Upgrade the database.
  6. Perform the postupgrade actions.

How do I update my ASM?

To upgrade Oracle Database, see Oracle Database Upgrade Guide. After upgrading an Oracle ASM instance, you can copy or move an Oracle ASM SPFILE. After copying or moving the SPFILE, you must restart the instance with the SPFILE in the new location to use that SPFILE.

How can I upgrade from 11g to 19c?

ORACLE instance shut down. Copy the parameter and password file from the 11g home to the new 19c home. Set new ORACLE_HOME for 19c location and startup database in upgrade mode : [oracle@19c ~]$ export ORACLE_SID=MIG19C [oracle@19c ~]$ export ORACLE_HOME=/u01/app/oracle/product/19.0.

How can I upgrade my database from 11g to 12c?

Manual Upgrading Oracle Database From 11.2. 0.4 to 12.2. 0.1
  1. Run the preupgrade tool: The preupgrade.
  2. Shutdown the database: Take full database backup.
  3. Copy the parameter and password file from the 11g home to the new 12c home.
  4. Set new ORACLE HOME of 12c location:
  5. Run catctl.pl.
  6. Run “postupgrade_fixups.
  7. Execute utlu122s.
  8. Execute catuppst.

How do you run Cluvfy in 11gr2?

Starting with Oracle Database 11g release 2 (11.2. 0.2), use the cluvfy comp dns component verification command to verify that the Grid Naming Service (GNS) subdomain delegation has been properly set up in the Domain Name Service (DNS) server. Run cluvfy comp dns -server on one node of the cluster.

What is rolling upgrade in Oracle?

A Rolling Upgrades and Patches. Oracle Fail Safe allows a cluster system to continue to provide service while the software is being upgraded to the next release. This process is called a rolling upgrade because each node is upgraded and restarted in turn, until all server nodes and all client nodes have been upgraded.

How do I find my Pfile ASM?

But if ASM instance is not up, let's see where we can find its location.
  1. From GPnP tool.
  2. From alert.log.
  3. $ORACLE_HOME/dbs.
  4. Backup the ASM SPFILE.

How do I add Spfile to ASM?

To create an SPFILE in a disk group, perform the following steps: Connect to the Oracle ASM instance. Create an SPFILE in a disk group that has COMPATIBLE. ASM set to 11.2 with the SQL CREATE SPFILE statement.

How do I start an ASM instance with Spfile?

Starting Up an Oracle ASM instance with an Incorrect SPFILE Path
  1. Create a PFILE with one line in it that identifies the path to the SPFILE. For example:
  2. Start up the instance using the initialization parameter file. For example:
  3. After the instance is running, use the ASMCMD spset command to update the SPFILE path in the GPnP profile. See "spset".

How do I move ASM Spfile to another drive group?

To move ASM spfile to another disk group, either make use of intermediate pfile:
  1. Create intermediate pfile from the current spfile.
  2. Create spfile in a new disk group from the intermediate pfile.
  3. Restart the HA stack to verify that ASM starts up fine with moved spfile.
  4. Remove the original spfile.

What is a Pfile in Oracle?

PFILE stands for the parameter file. It is a text file which can be modified by a text editor. With the help, PFILE Oracle server start an Oracle Instance.

How do I create a pfile in ASM?

How to move spfile from ASM to filesystem
  1. Create pfile from the spfile. First, we will create pfile in filesystem from the existing spfile in ASM.
  2. Remove the spfile from ASM. We can now connect the the ASM instance and remove the spfile residing in ASM disk group.
  3. Recreate the spfile.
  4. Start the database using new spfile.

How do I move a database Spfile from one disk to another?

Restart the HA stack
  1. Restart the HA stack to verify that ASM starts up fine with moved spfile.
  2. Verify that the new spfile is being used by the database using the below command.
  3. Also verify if the disk groups +DATA and +PLAY are in mounted state.
  4. The use of new spfile can also be verified with asmcmd as follows:

How do I change my ASM instance name?

Rename ASM Instance in RAC
  1. Logon to one of the ASM instance from a node and create a pfile from spfile.
  2. Edit the pfile to change instance names.
  3. Shutdown the RAC database either through normal database shutdown procedure or server control (srvctrl) utility.