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How do I delete an ASM instance?

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How do I delete an ASM instance?

Select ORACLE_ASM > ASM Instance Remove menu command from the host….To remove the selected ASM instance

  1. In the Password field, type the password for configured user name. Do not append ‘as sysdba*’* or ‘as sysasm*’* to the password.
  2. Click Apply to accept the information and to remove the ASM instance.
  3. Click Exit.

How do I drop dismounted Diskgroup in ASM?

How to Drop Unmounted Diskgroup

  1. SQL>drop diskgroup TEST_DG force INCLUDING contents;
  2. SQL> drop diskgroup TEST_DG ; drop diskgroup TEST_DG. * ERROR at line 1: ORA-15039: diskgroup not dropped.
  3. SQL> select name ,state from v$asm_diskgroup;
  4. NAME STATE. ————— ———– TEST_DG DISMOUNTED. DG_TEST_DATA MOUNTED.

How do I dismount 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 .

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 I drop a Diskgroup in RAC?

# To drop the disk , do the following: SQL > alter diskgroup DATA01 drop disk DISK7; It will rebalance first and then drops the disk automatically.

How do I create a Diskgroup in ASM?

  1. Create ASM disk. Get the Lun name from storage team. Lun Name – /dev/sda1.
  2. Check the ASM Disks, Check the newly added disk, $sudo oracleasm listdisks.
  3. Create the ASM Diskgroup. $sqlplus / as sysasm.
  4. Check the newly added disk in ASM Diskgroup.

How do I change redundancy of ASM Diskgroup?

Create a pfile from spfile, and shutdown the asm instance:

  1. SQL> create pfile=’/tmp/init+ASM. ora’ from spfile;
  2. File created.
  3. SQL> shut immediate;
  4. ASM diskgroups dismounted.
  5. ASM instance shutdown.

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.

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.

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