Rename Asm DiskGroup Name On Oracle 12c

 

Step1:Startup asm with created asm pfile.

startup pfile=$ORACLE_HOME/dbs/init+ASM.ora;

Step2:Dismount all disks. 

alter diskgroup all dismount;

Step3:First operation , rename diskgroup name as metadata.

 renamedg phase=one dgname=DATA newdgname=DATA1

asm_diskstring='/dev/oracleasm/disks/DATA_VOL01' config=/tmp/disk.conf verbose=true keep_voting_files=true renamedg phase=two dgname=DATA newdgname=DATA1 config=/tmp/disk.conf verbose=true keep_voting_files=true

renamedg phase=one dgname=RECO newdgname=RECO1 asm_diskstring='/dev/oracleasm/disks/RECO_VOL01' config=/tmp/disk2.conf verbose=true keep_voting_files=true renamedg phase=two dgname=RECO

newdgname=RECO1 config=/tmp/disk2.conf verbose=true keep_voting_files=true

Step4:Move disks in diskgroup

alter diskgroup DATA1 mount restricted; alter diskgroup DATA1 rename disks all; alter diskgroup RECO1 mount restricted; alter diskgroup RECO1 rename disks all;

Step5:Dismount all disks. alter diskgroup all dismount;

Step6:Second operation , rename diskgroup name as metadata. renamedg phase=one dgname=DATA1 newdgname=RECO asm_diskstring='/dev/oracleasm/disks/DATA_VOL01' config=/tmp/disk3.conf verbose=true keep_voting_files=true renamedg phase=two dgname=DATA1 newdgname=RECO config=/tmp/disk3.conf verbose=true keep_voting_files=true

renamedg phase=one dgname=RECO1 newdgname=DATA asm_diskstring='/dev/oracleasm/disks/RECO_VOL01' config=/tmp/disk4.conf verbose=true keep_voting_files=true renamedg phase=two dgname=RECO1 newdgname=DATA config=/tmp/disk4.conf verbose=true keep_voting_files=true

Step7:Move disks in diskgroup .

alter diskgroup DATA mount restricted;

alter diskgroup DATA rename disks all;

alter diskgroup RECO mount restricted;

alter diskgroup RECO rename disks all;

Step8:You can read disk with kfed and kfod . 

kfod asm_diskstring='/dev/oracleasm/disks/*' disks=all kfed read /dev/oracleasm/disks/DATA_VOL01 kfed read /dev/oracleasm/disks/RECO_VOL01