What is difference between candidate and provisioned in ASM disk?

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What is difference between candidate and provisioned in ASM disk?

CANDIDATE or PROVISIONED: Disk that been discovered but not assigned to any disk-group. PROVISIONED status an additional platform-specific action has been taken by an administrator to make the disk available. FORMER: Disks that previously belonged to a disk group and were dropped cleanly from the disk group.

What is header status in ASM disk?

The PROVISIONED header status is different from the CANDIDATE header status in that PROVISIONED implies that an additional platform-specific action has been taken by an administrator to make the disk available for Automatic Storage Management. FOREIGN – Disk contains data created by an Oracle product other than ASM.

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How do you make a candidate disk in ASM?

Creating temporary Disk Group

  1. To create a new disk group use the below command. SQL> CREATE DISKGROUP TEST EXTERNAL REDUNDANCY DISK ‘[YOUR CANDIDATE DISK]’;
  2. Check if the diskgroup is created and mounted: SQL> SELECT STATE, NAME FROM V$ASM_DISKGROUP;
  3. If it is not mounted, mount it manually using the below command:

How do I check the status of an 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 get Asmcmd?

To run ASMCMD in interactive mode:

  1. Enter the following at the OS command prompt: $ asmcmd.
  2. Enter an ASMCMD command and press Enter. The command runs and displays its output, and then ASMCMD prompts for the next command.
  3. Continue entering ASMCMD commands. Enter the command exit to exit ASMCMD.
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How do I mount a Diskgroup in ASM?

When you want to mount or dismount disk groups manually, use the ALTER DISKGROUP… MOUNT or ALTER DISKGROUP… DISMOUNT statement. You can mount or dismount disk groups by name, or specify ALL .

What are the ASM parameters?

Answer: Oracle ASM offers these initialization parameters. The main parameters for ASM include asm_diskgroups, asm_diskstring, asm_power_limit and asm_preferred_read_failure_groups. instance_type: This is normally set to instance_type=ASM, but the default is non-ASM where instance_type= rdbms.

How do I know the size of my ASM file?

How To List Files and Sizes within an ASM Disk Group

  1. select f. group_number, f. file_number, bytes, space, space/(1024*1024) “InMB”, a. name “Name”
  2. from v$asm_file f, v$asm_alias a.
  3. where f. group_number=a. group_number and f. file_number=a. file_number.
  4. order by f. group_number, f. file_number;

How do I increase the size of my ASM Diskgroup?

Grow disk group through ASM: This command is run from the database node as sysasm: alter diskgroup DATA_DB03P resize all rebalance power 32; select * from gv$asm_operation; Once this completes, you are done!

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Where is ASM disk path in Oracle?

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.

How can I tell if a database is using ASM?

Thank. Just read the name of a file in dba_data_files, if it starts with + then you use ASM.

What is Asmcmd oracle?

ASMCMD is a command-line utility that you can use to easily view and manipulate files and directories within Automatic Storage Management (ASM) disk groups. Oracle Database Administrator’s Guide for general information on Automatic Storage Management.