删除磁盘组报错：ORA-15027: active use of diskgroup "DATA" precludes its dismount

作者 阿九【转载时请务必以超链接形式标明文章原始出处和作者信息】

今天删除一个刚装好的 Grid Infrastructure 下的磁盘组"DATA"的时候，报错：

ORA-15027: active use of diskgroup "DATA" precludes its dismount

错误提示是因为在"DATA"磁盘组下有活动的文件存在，所以不能删除磁盘组。查看了磁盘组下的文件，发现ASM实例所使用的spfile是放在磁盘组下的，这也是oracle初始安装的一个特点，就是将第一个ASM实例的spile文件放在第一个磁盘组下。因此，解决过程如下：

1、删除磁盘组报错

[grid@rh5-ora11g ~]$ sqlplus /nolog SQL*Plus: Release 11.2.0.1.0 Production on 星期四 12月 6 23:47:19 2012 Copyright (c) 1982, 2009, Oracle. All rights reserved. SQL> conn /as sysasm 已连接。 SQL> SQL> drop diskgroup "DATA" force including contents; drop diskgroup "DATA" force including contents * 第 1 行出现错误: ORA-15039: diskgroup not dropped ORA-15230: diskgroup 'DATA' does not require the FORCE option SQL> SQL> SQL> drop diskgroup "DATA"; drop diskgroup "DATA" * 第 1 行出现错误: ORA-15039: diskgroup not dropped ORA-15053: diskgroup "DATA" contains existing files SQL> alter diskgroup "DATA" dismount; alter diskgroup "DATA" dismount * 第 1 行出现错误: ORA-15032: not all alterations performed ORA-15027: active use of diskgroup "DATA" precludes its dismount SQL>

2、查看活动的文件

SQL> select group_number, file_number, bytes, type from v$asm_file; GROUP_NUMBER FILE_NUMBER BYTES TYPE ------------ ----------- ---------- ---------------------------------------------------------------------- 1 253 1536 ASMPARAMETERFILE SQL>

可以看到有个ASM的spfile文件在磁盘组下。

3、将ASM的spfile重置一个新的地方

SQL> create pfile='/grid/base/grid/dbs/spfile_asm.ora' from spfile; File created. SQL>

4、关闭实例，用新建的pfile来启动实例

SQL> shutdown immediate; ASM diskgroups volume disabled ASM diskgroups dismounted ASM instance shutdown SQL> startup pfile='/grid/base/grid/dbs/spfile_asm.ora'; ASM instance started Total System Global Area 283930624 bytes Fixed Size 2212656 bytes Variable Size 256552144 bytes ASM Cache 25165824 bytes ORA-15110: no diskgroups mounted SQL> alter diskgroup all mount; alter diskgroup all mount * ERROR at line 1: ORA-15110: no diskgroups mounted SQL> alter diskgroup "DATA" mount; Diskgroup altered. SQL>

5、删除spfile和磁盘组

[grid@rh5-ora11g ~]$ asmcmd ASMCMD> ls DATA/ ASMCMD> cd data ASMCMD> ls ASM/ ASMCMD> cd asm ASMCMD> ls ASMPARAMETERFILE/ ASMCMD> rm -rf * ASMCMD> ls ASMCMD-08002: entry 'asm' does not exist in directory '+data/' ASMCMD> cd +data ASMCMD> ls ASMCMD> exit [grid@rh5-ora11g ~]$ SQL> drop diskgroup "DATA"; Diskgroup dropped. SQL> exit Disconnected from Oracle Database 11g Enterprise Edition Release 11.2.0.1.0 - 64bit Production With the Automatic Storage Management option [grid@rh5-ora11g dbs]$ crs_stat -t 名称 类型 目标 状态 主机 ------------------------------------------------------------ ora....ER.lsnr ora....er.type ONLINE ONLINE rh5-ora11g ora.asm ora.asm.type ONLINE ONLINE rh5-ora11g ora.cssd ora.cssd.type ONLINE ONLINE rh5-ora11g ora.diskmon ora....on.type ONLINE ONLINE rh5-ora11g [grid@rh5-ora11g dbs]$

6、使用ASMCA来创建新的磁盘组，名字还是叫"DATA"

[grid@rh5-ora11g dbs]$ crs_stat -t 名称 类型 目标 状态 主机 ------------------------------------------------------------ ora.DATA.dg ora....up.type ONLINE ONLINE rh5-ora11g ora....ER.lsnr ora....er.type ONLINE ONLINE rh5-ora11g ora.asm ora.asm.type ONLINE ONLINE rh5-ora11g ora.cssd ora.cssd.type ONLINE ONLINE rh5-ora11g ora.diskmon ora....on.type ONLINE ONLINE rh5-ora11g [grid@rh5-ora11g dbs]$ [grid@rh5-ora11g dbs]$ asmcmd lsdg State Type Rebal Sector Block AU Total_MB Free_MB Req_mir_free_MB Usable_file_MB Offline_disks Voting_files Name MOUNTED EXTERN N 512 4096 1048576 3072 3020 0 3020 0 N DATA/ [grid@rh5-ora11g dbs]$

7、在新的磁盘组上创建ASM实例的spfile文件，并重启ASM实例

[grid@rh5-ora11g dbs]$ sqlplus /nolog SQL*Plus: Release 11.2.0.1.0 Production on 星期五 12月 7 00:09:09 2012 Copyright (c) 1982, 2009, Oracle. All rights reserved. SQL> conn /as sysasm 已连接。 SQL> create spfile='+DATA' from pfile='/grid/base/grid/dbs/spfile_asm.ora'; File created. SQL> shutdown immediate; ASM diskgroups volume disabled ASM diskgroups dismounted ASM instance shutdown SQL> startup ASM 实例已启动 Total System Global Area 283930624 bytes Fixed Size 2212656 bytes Variable Size 256552144 bytes ASM Cache 25165824 bytes ASM diskgroups mounted ASM diskgroups volume enabled SQL> SQL> exit Disconnected from Oracle Database 11g Enterprise Edition Release 11.2.0.1.0 - 64bit Production With the Automatic Storage Management option [grid@rh5-ora11g dbs]$ [grid@rh5-ora11g dbs]$ [grid@rh5-ora11g dbs]$ [grid@rh5-ora11g dbs]$ crs_stat -t 名称 类型 目标 状态 主机 ------------------------------------------------------------ ora.DATA.dg ora....up.type ONLINE ONLINE rh5-ora11g ora....ER.lsnr ora....er.type ONLINE ONLINE rh5-ora11g ora.asm ora.asm.type ONLINE ONLINE rh5-ora11g ora.cssd ora.cssd.type ONLINE ONLINE rh5-ora11g ora.diskmon ora....on.type ONLINE ONLINE rh5-ora11g [grid@rh5-ora11g dbs]$

至此，问题解决，磁盘组已经删除并重建。

本文参考如下博客，很感谢该博客给予的帮助。
文章作者：zhutianjie
文章地址：http://blog.sina.com.cn/s/blog_69e7b8d701014ta2.html