如何重命名ASM 中的磁盘组

介绍一个重命名Oracle asm 磁盘组的工具renamedgTherenamedgtool enables you to change the name of a cloned disk group. The disk group must be dismounted on all nodes in the cluster before runningrenamedgon the disk group.renamedgrenames a disk group using a two-step process:

Phase oneThis phase generates a configuration file to be used in phase two.
Phase twoThis phase uses the configuration file to perform the renaming of the disk group.

The syntax is:
renamedg{-help|help=true}

renamedg
[phase={one|two|both} ]dgname=diskgroup
newdgname=newdiskgroup[config=configfile]
[asm_diskstring=discoverystring,discoverystring... ]
[clean={true|false} ] [check={true|false} ]
[confirm={true|false}] [verbose={true|false} ]
[keep_voting_files={true|false}]

phase={one|two|both}

注意：

Applies to:
Oracle Server - Enterprise Edition - Version: 10.1.0.2 to 11.2.0.0
Information in this document applies to any platform.

Goal
The purpose of this document is to provide information about rename diskgroup in 10g and 11gR1 release

Solution
rename diskgroup option is a new feature of 11gR2 .

You can use this tool to rename your 10g or 11gR1 ASM diskgroup

you need to just install 11gR2 SIHA Grid Infrastructure software only installation.

cd <11gr2 grid home>/bin
renamedg

use renamedg tool to rename 10g or 11gR1 diskgroup.

Diskgroup cannot be renamed under following conditions :

- the Diskgroup is mounted
- the Diskgroup is being used by CSS
- Diskgroup contains offline disks

eg：-bash-4.1$ sqlplus / as sysasmSQL*Plus: Release 11.2.0.4.0 Production on Mon Mar 24 15:33:16 2014Copyright （c） 1982, 2013, Oracle. All rights reserved.
Connected to:
Oracle Database 11g Enterprise Edition Release 11.2.0.4.0 - 64bit Production
With the Automatic Storage Management optionSQL> alter diskgroup new_datagroup2 dismount;Diskgroup altered.SQL>
SQL>
SQL> exit-bash-4.1$
-bash-4.1$ renamedg -help
NOTE: No asm libraries found in the systemParsing parameters..
phase Phase to execute,
（phase=ONE|TWO|BOTH）, default BOTHdgname Diskgroup to be renamednewdgname New name for the diskgroupconfig intermediate config filecheck just check-do not perform actual operation,
（check=TRUE/FALSE）, default FALSEconfirm confirm before committing changes to disks,
（confirm=TRUE/FALSE）, default FALSEclean ignore errors,
（clean=TRUE/FALSE）, default TRUEasm_diskstring ASM Diskstring （asm_diskstring="discoverystring",
"discoverystring1" ...）verbose verbose execution,
（verbose=TRUE|FALSE）, default FALSEkeep_voting_files Voting file attribute,
（keep_voting_files=TRUE|FALSE）, default FALSE-bash-4.1$ renamedg dgname=NEW_DATAGROUP2 newdgname=datagroup2 asm_diskstring="/dev/oracleasm/disks/*" verbose=true
NOTE: No asm libraries found in the systemParsing parameters..Parameters in effect: Old DG name : NEW_DATAGROUP2
New DG name : DATAGROUP2
Phases :
Phase 1
Phase 2
Discovery str : /dev/oracleasm/disks/*
Clean : TRUE
Raw only : TRUE
renamedg operation: dgname=NEW_DATAGROUP2 newdgname=datagroup2 asm_diskstring=/dev/oracleasm/disks/* verbose=true
Executing phase 1
Discovering the group
Performing discovery with string:/dev/oracleasm/disks/*
Identified disk UFS:/dev/oracleasm/disks/ASMDISK5 with disk number:0 and timestamp （33001227 75905024）
Identified disk UFS:/dev/oracleasm/disks/ASMDISK6 with disk number:1 and timestamp （33001227 75905024）
Identified disk UFS:/dev/oracleasm/disks/ASMDISK7 with disk number:2 and timestamp （33001227 75905024）
Identified disk UFS:/dev/oracleasm/disks/ASMDISK8 with disk number:5 and timestamp （33001229 -598404096）
Identified disk UFS:/dev/oracleasm/disks/ASMDISK9 with disk number:3 and timestamp （33001229 -678575104）
Identified disk UFS:/dev/oracleasm/disks/ASMDISK10 with disk number:4 and timestamp （33001229 -678575104）
Checking for hearbeat...
Re-discovering the group
Performing discovery with string:/dev/oracleasm/disks/*
Identified disk UFS:/dev/oracleasm/disks/ASMDISK5 with disk number:0 and timestamp （33001227 75905024）
Identified disk UFS:/dev/oracleasm/disks/ASMDISK6 with disk number:1 and timestamp （33001227 75905024）
Identified disk UFS:/dev/oracleasm/disks/ASMDISK7 with disk number:2 and timestamp （33001227 75905024）
Identified disk UFS:/dev/oracleasm/disks/ASMDISK8 with disk number:5 and timestamp （33001229 -598404096）
Identified disk UFS:/dev/oracleasm/disks/ASMDISK9 with disk number:3 and timestamp （33001229 -678575104）
Identified disk UFS:/dev/oracleasm/disks/ASMDISK10 with disk number:4 and timestamp （33001229 -678575104）
Checking if the diskgroup is mounted or used by CSS
Checking disk number:0
Checking disk number:1
Checking disk number:2
Checking disk number:5
Checking disk number:3
Checking disk number:4
Generating configuration file..
Completed phase 1
Executing phase 2
Looking for /dev/oracleasm/disks/ASMDISK5
Modifying the header
Looking for /dev/oracleasm/disks/ASMDISK6
Modifying the header
Looking for /dev/oracleasm/disks/ASMDISK7
Modifying the header
Looking for /dev/oracleasm/disks/ASMDISK8
Modifying the header
Looking for /dev/oracleasm/disks/ASMDISK9
Modifying the header
Looking for /dev/oracleasm/disks/ASMDISK10
Modifying the header
Completed phase 2
Terminating kgfd context 0x7f57a379b0a0
-bash-4.1$ sqlplus / as sysasmSQL*Plus: Release 11.2.0.4.0 Production on Mon Mar 24 15:35:04 2014Copyright （c） 1982, 2013, Oracle. All rights reserved.
Connected to:
Oracle Database 11g Enterprise Edition Release 11.2.0.4.0 - 64bit Production
With the Automatic Storage Management optionSQL> select name,state from v$asm_diskgroup;NAME STATE
------------------------------ -----------
DATAGROUP1 MOUNTED
DATAGROUP2 DISMOUNTEDSQL> alter diskgroup datagroup2 mount;Diskgroup altered.SQL> select name,state from v$asm_diskgroup;NAME STATE
------------------------------ -----------
DATAGROUP1 MOUNTED
DATAGROUP2 MOUNTEDSQL> exit
Disconnected from Oracle Database 11g Enterprise Edition Release 11.2.0.4.0 - 64bit Production
With the Automatic Storage Management option
-bash-4.1$ crsctl stat res -t
--------------------------------------------------------------------------------
NAME TARGET STATE SERVER STATE_DETAILS
--------------------------------------------------------------------------------
Local Resources
--------------------------------------------------------------------------------
ora.DATAGROUP1.dg
ONLINE ONLINE oracle-one
ora.DATAGROUP2.dg
ONLINE ONLINE oracle-one
ora.LISTENER.lsnr
ONLINE ONLINE oracle-one
ora.NEW_DATAGROUP2.dg
OFFLINE OFFLINE oracle-one
ora.asm
ONLINE ONLINE oracle-one Started
ora.ons
OFFLINE OFFLINE oracle-one
--------------------------------------------------------------------------------
Cluster Resources
--------------------------------------------------------------------------------
ora.cssd
1 ONLINE ONLINE oracle-one
ora.diskmon
1 OFFLINE OFFLINE
ora.evmd
1 ONLINE ONLINE oracle-one
ora.rhys.db
1 OFFLINE OFFLINE Instance Shutdown
-bash-4.1$ srvctl remove diskgroup -g new_datagroup2
-bash-4.1$ crsctl status res -t
--------------------------------------------------------------------------------
NAME TARGET STATE SERVER STATE_DETAILS
--------------------------------------------------------------------------------
Local Resources
--------------------------------------------------------------------------------
ora.DATAGROUP1.dg
ONLINE ONLINE oracle-one
ora.DATAGROUP2.dg
ONLINE ONLINE oracle-one
ora.LISTENER.lsnr
ONLINE ONLINE oracle-one
ora.asm
ONLINE ONLINE oracle-one Started
ora.ons
OFFLINE OFFLINE oracle-one
--------------------------------------------------------------------------------
Cluster Resources
--------------------------------------------------------------------------------
ora.cssd
1 ONLINE ONLINE oracle-one
ora.diskmon
1 OFFLINE OFFLINE
ora.evmd
1 ONLINE ONLINE oracle-one
ora.rhys.db
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