How do you find ASM parameters?

How do you find ASM parameters?

Oracle ASM Parameters

1. instance_type: This is normally set to instance_type=ASM, but the default is non-ASM where instance_type= rdbms.
2. db_unique_name: This is a global unique name for the database that has npounted the ASM diskgroups.

Where do I find ASM disks?

To identify the underlying physical device that the ASM disk point to, you can use the oracleasm querydisk command. The querydisk option will list the major and minor numbers that can be used to match the physical device. The following example was run on a virtual server hosting ASM and an Oracle database.

What are the ASM parameters?

This section contains information about the following initialization parameters for Oracle ASM:

• ASM_DISKGROUPS.
• ASM_DISKSTRING.
• ASM_POWER_LIMIT.
• ASM_PREFERRED_READ_FAILURE_GROUPS.
• DB_CACHE_SIZE.
• DIAGNOSTIC_DEST.
• INSTANCE_TYPE.
• LARGE_POOL_SIZE.

Which parameter is required for an ASM instance?

INSTANCE_TYPE initialization parameter
You can also set some parameters after database creation using Oracle Enterprise Manager or SQL ALTER SYSTEM or ALTER SESSION statements. The INSTANCE_TYPE initialization parameter is the only required parameter in the Oracle ASM instance parameter file.

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 find my ASM file system?

To create and verify a file system, perform the following steps:

1. Create an Oracle ASM volume in a mounted disk group with the ASMCMD volcreate command. The compatibility parameters COMPATIBLE.
2. Determine the device name of the volume that was created.
3. Create a file system with the Oracle ACFS mkfs command.

How do you check if ASM disks are mounted?

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 create ASM Pfile?

To create an SPFILE in a disk group, perform the following steps:

1. Connect to the Oracle ASM instance. For example: $ sqlplus / as sysasm.
2. Create an SPFILE in a disk group that has COMPATIBLE.
3. Restart the Oracle ASM instance so that the instance reads the SPFILE in the new location.

How do I read ASM Spfile?

Overview – steps to read an ASM Spfile

1. Use Pnp play tool: gpnptool getpval -asm_dis to read ASM disk discovery path.
2. Scan all available ASM disk header to find ASM disks having a spfile reference.
3. Read the related block and dump the SPfile entries.

How do I create ASM Spfile?

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.