如何彻底删除ASM磁盘组

环境:

oracle:11.2.0.4

下面演示如何彻底删除磁盘组BAK_REDO,BAK_DATA

1.进入grid用户下执行删除操作(在其中一个asm实例操作)
alter diskgroup BAK_REDO dismount;
drop diskgroup BAK_REDO force including contents;

alter diskgroup BAK_DATA dismount;
drop diskgroup BAK_DATA force including contents;

2.删除srvctl相应的资源(grid账号)
srvctl disable diskgroup -g BAK_REDO
srvctl remove diskgroup -g BAK_REDO -f

srvctl disable diskgroup -g BAK_DATA
srvctl remove diskgroup -g BAK_DATA -f

3.启动数据库(grid账号)
[grid@host01 ~]$ srvctl start database -d slnngk
PRCR-1079 : Failed to start resource ora.slnngk.db
CRS-2640: Required resource 'ora.BAK_DATA.dg' is missing.
发现OCR注册表里面还是有BAK_DATA的信息,无法启动

4.修改数据库信息,通过-a选择项指定目前在用的磁盘组,在用的磁盘组可以通过进入asm实例查询得到

(root账号)
./srvctl modify database -d slnngk -a "DATA,OCR,REDO"

5.再次启动数据库
srvctl start database -d slnngk

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