ASM Disk Group Administratoion

Contents:- ASM Disk Deletion from an Existing Disk Group, ASM Disk Addition to an Existing Disk Group

Add a Disk to an Existing Disk Group

Steps

Sql> select name,path from V$asm_disk;

Sql> select name,total_mb from V$asm_diskgroup;

Add disk into your machine

$> su root

$> ls /dev/sd*

$> fdisk /dev/sde

n,p,1,1,<enter>,w

$> ls /dev/sd*

$>oracleasm listdisks

$> oracleasm createdisk ‘DISK4’ /dev/sde

$> oracleasm listdisks

Sql> alter diskgroup <diskgroup_name> add disk <disk_name>;

Sql> select name,total_mb from v$asm_diskgroup;

Drop a Disk from an Existing Disk Group

Steps

Sql> select name,path from v$asm_disk;

Sql> select name,total_mb from v$asm_diskgroup;

Sql> alter diskgroup <diskgroup_name> drop disk <disk_name> REBALANCE POWER 11;

Sql> select name,total_mb from v$asm_diskgroup;