如何重命名asm中的磁盘组 - 数据库编程

今天是2014-03-24，介绍一个重命名oracle asm 磁盘组的工具renamedg

The renamedg tool enables you to change the name of a cloned disk group. The disk group must be dismounted on all nodes in the cluster before running renamedg on the disk group.

renamedg renames a disk group using a two-step process:

Phase one

This phase generates a configuration file to be used in phase two.

Phase two

This 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 sysasm

SQL*Plus: Release 11.2.0.4.0 Production on Mon Mar 24 15:33:16 2014

Copyright (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 option

SQL> 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 system

Parsing parameters..
phase                           Phase to execute, 
                                (phase=ONE|TWO|BOTH), default BOTH

dgname                          Diskgroup to be renamed

newdgname                       New name for the diskgroup

config                          intermediate config file

check                           just check-do not perform actual operation,
                                (check=TRUE/FALSE), default FALSE

confirm                         confirm before committing changes to disks,
                                (confirm=TRUE/FALSE), default FALSE

clean                           ignore errors,
                                (clean=TRUE/FALSE), default TRUE

asm_diskstring                  ASM Diskstring (asm_diskstring='discoverystring',
                                'discoverystring1' ...)

verbose                         verbose execution, 
                                (verbose=TRUE|FALSE), default FALSE

keep_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 system

Parsing 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/or

如何重命名asm中的磁盘组(一)