Note : For this post I have referred the other source. Just for knowledge sharing i have shared the same info here :)
Some of the times we might face the situation to change the name of the Diskgroup, The same senario has been replicated here :
SELECT NAME,STATE FROM V$ASM_DISKGROUP;
NAME STATE
—————————- ————
ARCHLOG MOUNTED
DATAFILE_ORAPROD6 MOUNTED
DATAFILE_ORAPRD7 MOUNTED
LOG1 MOUNTED
LOG2 MOUNTED
—————————- ————
ARCHLOG MOUNTED
DATAFILE_ORAPROD6 MOUNTED
DATAFILE_ORAPRD7 MOUNTED
LOG1 MOUNTED
LOG2 MOUNTED
Before to start the actual migration found DATAFILE_ORAPRD7 dg has typo error it should be like DATAFILE_ORAPRD7 so Instead of dropping the diskgroup I decided to go for rename it.
Below are the steps which I followed to rename Diskgroup in 11.2 grid environment.
First we need to dismount the DG which we are going to rename.
Stop ASM Diskgroup.
oracle:+ASM@linuxprd5 /oracle > asmcmd umount DATAFILE_ORAPRD7
Check the Status of Diskgroup.
oracle:+ASM@linuxprd5 /oracle > crsctl stat res ora.DATAFILE_ORAPRD7.dg
NAME=ora.DATAFILE_ORAPRD7.dg
TYPE=ora.diskgroup.type
TARGET=OFFLINE
STATE=OFFLINE
NAME=ora.DATAFILE_ORAPRD7.dg
TYPE=ora.diskgroup.type
TARGET=OFFLINE
STATE=OFFLINE
Now we are good to go for Renaming Diskgroup.
Inorder to Rename any diskgroup in 11.2 gird we can use “renamedg” command.
Inorder to Rename any diskgroup in 11.2 gird we can use “renamedg” command.
oracle:+ASM@linuxprd5 /oracle > renamedg phase=both dgname=DATAFILE_ORAPRD7 newdgname=DATAFILE_ORAPROD7 verbose=true
Parsing parameters..
Parameters in effect:
Old DG name : DATAFILE_ORAPRD7
New DG name : DATAFILE_ORAPROD7
Phases :
Phase 1
Phase 2
Discovery str : (null)
Clean : TRUE
Raw only : TRUE
renamedg operation: phase=both dgname=DATAFILE_ORAPRD7 newdgname=DATAFILE_ORAPROD7 verbose=true
Executing phase 1
Discovering the group
Performing discovery with string:
Identified disk ASM:/opt/oracle/extapi/64/asm/orcl/1/libasm.so:ORCL:DATA_DISK1 with disk number:0 and timestamp (32971243 -722582528)
Identified disk ASM:/opt/oracle/extapi/64/asm/orcl/1/libasm.so:ORCL:DATA_DISK2 with disk number:1 and timestamp (32971243 -722582528)
Checking for hearbeat…
Re-discovering the group
Performing discovery with string:
Identified disk ASM:/opt/oracle/extapi/64/asm/orcl/1/libasm.so:ORCL:DATA_DISK1 with disk number:0 and timestamp (32971243 -722582528)
Identified disk ASM:/opt/oracle/extapi/64/asm/orcl/1/libasm.so:ORCL:DATA_DISK2 with disk number:1 and timestamp (32971243 -722582528)
Checking if the diskgroup is mounted or used by CSS
Checking disk number:0
Checking disk number:1
Generating configuration file..
Completed phase 1
Executing phase 2
Looking for ORCL:DATA_DISK1
Modifying the header
Looking for ORCL:DATA_DISK2
Modifying the header
Completed phase 2
Terminating kgfd context 0x2b4c8410a0a0
oracle:+ASM@linuxprd5 /oracle >
New DG name : DATAFILE_ORAPROD7
Phases :
Phase 1
Phase 2
Discovery str : (null)
Clean : TRUE
Raw only : TRUE
renamedg operation: phase=both dgname=DATAFILE_ORAPRD7 newdgname=DATAFILE_ORAPROD7 verbose=true
Executing phase 1
Discovering the group
Performing discovery with string:
Identified disk ASM:/opt/oracle/extapi/64/asm/orcl/1/libasm.so:ORCL:DATA_DISK1 with disk number:0 and timestamp (32971243 -722582528)
Identified disk ASM:/opt/oracle/extapi/64/asm/orcl/1/libasm.so:ORCL:DATA_DISK2 with disk number:1 and timestamp (32971243 -722582528)
Checking for hearbeat…
Re-discovering the group
Performing discovery with string:
Identified disk ASM:/opt/oracle/extapi/64/asm/orcl/1/libasm.so:ORCL:DATA_DISK1 with disk number:0 and timestamp (32971243 -722582528)
Identified disk ASM:/opt/oracle/extapi/64/asm/orcl/1/libasm.so:ORCL:DATA_DISK2 with disk number:1 and timestamp (32971243 -722582528)
Checking if the diskgroup is mounted or used by CSS
Checking disk number:0
Checking disk number:1
Generating configuration file..
Completed phase 1
Executing phase 2
Looking for ORCL:DATA_DISK1
Modifying the header
Looking for ORCL:DATA_DISK2
Modifying the header
Completed phase 2
Terminating kgfd context 0x2b4c8410a0a0
oracle:+ASM@linuxprd5 /oracle >
Connect to ASM Instance and verify the new diskgroup name.
oracle:+ASM@linuxprd5 /oracle > sqlplus / as sqlasm
SQL*Plus: Release 11.2.0.3.0 Production on Tue Jun 19 03:17:26 2012
Copyright (c) 1982, 2011, Oracle. All rights reserved.
Connected to:
Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 – 64bit Production
With the Automatic Storage Management option
SQL> select name ,state from v$asm_diskgroup;
NAME STATE
—————————– —————-
DATAFILE_ORAPROD7 DISMOUNTED —> Diskgroup got Renamed Now.
DATAFILE_ORAPROD6 MOUNTED
ARCHLOG MOUNTED
LOG1 MOUNTED
LOG2 MOUNTED
SQL> alter diskgroup DATAFILE_ORAPROD7 mount;
Diskgroup altered.
SQL> select name ,state from v$asm_diskgroup;
NAME STATE
—————————– ————-
DATAFILE_ORAPROD7 MOUNTED
DATAFILE_ORAPROD6 MOUNTED
ARCHLOG MOUNTED
LOG1 MOUNTED
LOG2 MOUNTED
SQL*Plus: Release 11.2.0.3.0 Production on Tue Jun 19 03:17:26 2012
Copyright (c) 1982, 2011, Oracle. All rights reserved.
Connected to:
Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 – 64bit Production
With the Automatic Storage Management option
SQL> select name ,state from v$asm_diskgroup;
NAME STATE
—————————– —————-
DATAFILE_ORAPROD7 DISMOUNTED —> Diskgroup got Renamed Now.
DATAFILE_ORAPROD6 MOUNTED
ARCHLOG MOUNTED
LOG1 MOUNTED
LOG2 MOUNTED
SQL> alter diskgroup DATAFILE_ORAPROD7 mount;
Diskgroup altered.
SQL> select name ,state from v$asm_diskgroup;
NAME STATE
—————————– ————-
DATAFILE_ORAPROD7 MOUNTED
DATAFILE_ORAPROD6 MOUNTED
ARCHLOG MOUNTED
LOG1 MOUNTED
LOG2 MOUNTED
After Renaming the diskgroup we need to remove old diskgroup name from the cluster resource also.
oracle:+ASM@linuxprd5 /oracle > crsctl stat res -t
——————————————————————————–
NAME TARGET STATE SERVER STATE_DETAILS
——————————————————————————–
Local Resources
——————————————————————————–
ora.ARCHLOG.dg
ONLINE ONLINE linuxprd5
ora.DATAFILE_ORAPROD6.dg
ONLINE ONLINE linuxprd5
ora.DATAFILE_ORAPRD7.dg
OFFLINE OFFLINE linuxprd5 –> Still this resource is not removed from the cluster but its in OFFLINE.
ora.DATAFILE_COORAPROD73A.dg
ONLINE ONLINE linuxprd5
ora.LOG1.dg
ONLINE ONLINE linuxprd5
ora.LOG2.dg
ONLINE ONLINE linuxprd5
ora.asm
ONLINE ONLINE linuxprd5 Started
ora.ons
OFFLINE OFFLINE linuxprd5
——————————————————————————–
Cluster Resources
——————————————————————————–
ora.cssd
1 ONLINE ONLINE linuxprd5
ora.diskmon
1 OFFLINE OFFLINE
ora.evmd
1 ONLINE ONLINE linuxprd5
——————————————————————————–
NAME TARGET STATE SERVER STATE_DETAILS
——————————————————————————–
Local Resources
——————————————————————————–
ora.ARCHLOG.dg
ONLINE ONLINE linuxprd5
ora.DATAFILE_ORAPROD6.dg
ONLINE ONLINE linuxprd5
ora.DATAFILE_ORAPRD7.dg
OFFLINE OFFLINE linuxprd5 –> Still this resource is not removed from the cluster but its in OFFLINE.
ora.DATAFILE_COORAPROD73A.dg
ONLINE ONLINE linuxprd5
ora.LOG1.dg
ONLINE ONLINE linuxprd5
ora.LOG2.dg
ONLINE ONLINE linuxprd5
ora.asm
ONLINE ONLINE linuxprd5 Started
ora.ons
OFFLINE OFFLINE linuxprd5
——————————————————————————–
Cluster Resources
——————————————————————————–
ora.cssd
1 ONLINE ONLINE linuxprd5
ora.diskmon
1 OFFLINE OFFLINE
ora.evmd
1 ONLINE ONLINE linuxprd5
Below are the detailed info for the new and old diskgroup resource status.
oracle:+ASM@linuxprd5 /oracle > crsctl stat res ora.DATAFILE_ORAPRD7.dg ora.DATAFILE_ORAPROD7.dg
NAME=ora.DATAFILE_ORAPRD7.dg
TYPE=ora.diskgroup.type
TARGET=OFFLINE
STATE=OFFLINE
NAME=ora.DATAFILE_ORAPROD7.dg
TYPE=ora.diskgroup.type
TARGET=ONLINE
STATE=ONLINE on linuxprd5
NAME=ora.DATAFILE_ORAPRD7.dg
TYPE=ora.diskgroup.type
TARGET=OFFLINE
STATE=OFFLINE
NAME=ora.DATAFILE_ORAPROD7.dg
TYPE=ora.diskgroup.type
TARGET=ONLINE
STATE=ONLINE on linuxprd5
To remove diksgroup from the cluster resource we can use SRVCTL command.
oracle:+ASM@linuxprd5 /oracle > srvctl remove diskgroup -g DATAFILE_ORAPRD7
oracle:+ASM@linuxprd5 /oracle > crsctl stat res -t
——————————————————————————-
NAME TARGET STATE SERVER STATE_DETAILS
——————————————————————————-
Local Resources
——————————————————————————-
ora.ARCHLOG.dg
ONLINE ONLINE linuxprd5
ora.DATAFILE_ORAPROD6.dg
ONLINE ONLINE linuxprd5
ora.DATAFILE_ORAPROD7.dg
ONLINE ONLINE linuxprd5
ora.LOG1.dg
ONLINE ONLINE linuxprd5
ora.LOG2.dg
ONLINE ONLINE linuxprd5
ora.asm
ONLINE ONLINE linuxprd5 Started
ora.ons
OFFLINE OFFLINE linuxprd5
——————————————————————————-
Cluster Resources
——————————————————————————-
ora.cssd
1 ONLINE ONLINE linuxprd5
ora.diskmon
1 OFFLINE OFFLINE
ora.evmd
1 ONLINE ONLINE linuxprd5
oracle:+ASM@linuxprd5 /oracle > crsctl stat res -t
——————————————————————————-
NAME TARGET STATE SERVER STATE_DETAILS
——————————————————————————-
Local Resources
——————————————————————————-
ora.ARCHLOG.dg
ONLINE ONLINE linuxprd5
ora.DATAFILE_ORAPROD6.dg
ONLINE ONLINE linuxprd5
ora.DATAFILE_ORAPROD7.dg
ONLINE ONLINE linuxprd5
ora.LOG1.dg
ONLINE ONLINE linuxprd5
ora.LOG2.dg
ONLINE ONLINE linuxprd5
ora.asm
ONLINE ONLINE linuxprd5 Started
ora.ons
OFFLINE OFFLINE linuxprd5
——————————————————————————-
Cluster Resources
——————————————————————————-
ora.cssd
1 ONLINE ONLINE linuxprd5
ora.diskmon
1 OFFLINE OFFLINE
ora.evmd
1 ONLINE ONLINE linuxprd5
****************************Happy Learning *******************************