ITPub博客

首页 > Linux操作系统 > Linux操作系统 > ASM磁盘组删除DISK操作

ASM磁盘组删除DISK操作

原创 Linux操作系统 作者:victorymoshui 时间:2011-08-23 09:39:01 0 删除 编辑

ASM接触了很长时间,从磁盘组中删除磁盘的操作还是第一次。


没想到这么简单的操作,由于不熟悉还碰到了两个小问题。

[oracle@dbserver1 ~]$ sqlplus / as sysdba

SQL*Plus: Release 11.2.0.2.0 Production on Tue Aug 9 10:08:06 2011

Copyright (c) 1982, 2010, Oracle. All rights reserved.

Connected to:
Oracle Database 11g Enterprise Edition Release 11.2.0.2.0 - 64bit Production
With the Partitioning, Automatic Storage Management, OLAP, Data Mining
and Real Application Testing options

SQL> set pages 100 lines 120
SQL> select group_number, name, state, type, total_mb, free_mb
2 from v$asm_diskgroup;

GROUP_NUMBER NAME STATE TYPE TOTAL_MB FREE_MB
------------ ------------------------------ ----------- ------ ---------- ----------
1 DATA_AU1M CONNECTED EXTERN 1953124 7430
2 DATA_AU2M CONNECTED EXTERN 1953124 7384
3 DATA_AU4M CONNECTED EXTERN 1953124 7304
4 DATA CONNECTED EXTERN 3906248 3898966

SQL> col path format a30
SQL> col name format a30
SQL> select disk_number, path, name, total_mb, free_mb
2 from v$asm_disk
3 where group_number = 4;

DISK_NUMBER PATH NAME TOTAL_MB FREE_MB
----------- ------------------------- ------------------------- ---------- ----------
1 /dev/asm-disk5 DATA_0001 1953124 1949486
0 /dev/asm-disk4 DATA_0000 1953124 1949480

SQL> alter diskgroup data drop disk '/dev/asm-disk5';
alter diskgroup data drop disk '/dev/asm-disk5'
*
ERROR at line 1:
ORA-15000: command disallowed by current instance type

SQL> exit
Disconnected from Oracle Database 11g Enterprise Edition Release 11.2.0.2.0 - 64bit Production
With the Partitioning, Automatic Storage Management, OLAP, Data Mining
and Real Application Testing options

由于当前连接的是数据库,显然不能对ASM实例中的磁盘组进行操作,下面连接ASM实例:

[oracle@dbserver1 ~]$ su - grid
Password:
[grid@dbserver1 ~]$ sqlplus / as sysdba

SQL*Plus: Release 11.2.0.2.0 Production on Tue Aug 9 10:12:39 2011

Copyright (c) 1982, 2010, Oracle. All rights reserved.


Connected to:
Oracle Database 11g Enterprise Edition Release 11.2.0.2.0 - 64bit Production
With the Automatic Storage Management option

SQL> set pages 100 lines 120
SQL> select instance_number, instance_name from v$instance;

INSTANCE_NUMBER INSTANCE_NAME
--------------- ----------------
1 +ASM

SQL> alter diskgroup data drop disk '/dev/asm-disk5';
alter diskgroup data drop disk '/dev/asm-disk5'
*
ERROR at line 1:
ORA-15032: not all alterations performed
ORA-15260: permission denied on ASM disk group


SQL> alter diskgroup data drop disk data_0001;
alter diskgroup data drop disk data_0001
*
ERROR at line 1:
ORA-15032: not all alterations performed
ORA-15260: permission denied on ASM disk group

开始看到这个错误还确实疑惑了一下,怎么可能没有权限。有在操作系统上检查了磁盘的权限,也没有任何问题。

检查Oracle文档的错误信息后发现,由于习惯了适用sysdba来处理,忽略了当前是11gASM,应该用sysasm来登录:

SQL> conn / as sysasm
Connected.
SQL> alter diskgroup data drop disk data_0001;

Diskgroup altered.

SQL> select disk_number, state, name, total_mb, free_mb from v$asm_disk where group_number = 4;

DISK_NUMBER STATE NAME TOTAL_MB FREE_MB
----------- -------- ------------------------------ ---------- ----------
1 DROPPING DATA_0001 1953124 1950842
0 NORMAL DATA_0000 1953124 1948124

SQL> select disk_number, state, name, total_mb, free_mb from v$asm_disk where group_number = 4;

DISK_NUMBER STATE NAME TOTAL_MB FREE_MB
----------- -------- ------------------------------ ---------- ----------
1 DROPPING DATA_0001 1953124 1951434
0 NORMAL DATA_0000 1953124 1947532

SQL> select disk_number, state, name, total_mb, free_mb from v$asm_disk where group_number = 4;

DISK_NUMBER STATE NAME TOTAL_MB FREE_MB
----------- -------- ------------------------------ ---------- ----------
1 DROPPING DATA_0001 1953124 1952556
0 NORMAL DATA_0000 1953124 1946410

SQL> select disk_number, state, name, total_mb, free_mb from v$asm_disk where group_number = 4;

DISK_NUMBER STATE NAME TOTAL_MB FREE_MB
----------- -------- ------------------------------ ---------- ----------
1 DROPPING DATA_0001 1953124 1953096
0 NORMAL DATA_0000 1953124 1945870

SQL> select disk_number, state, name, total_mb, free_mb from v$asm_disk where group_number = 4;

DISK_NUMBER STATE NAME TOTAL_MB FREE_MB
----------- -------- ------------------------------ ---------- ----------
0 NORMAL DATA_0000 1953124 1945854

SQL> select group_number, disk_number, path, name, state, total_mb, free_mb
2 from v$asm_disk
3 where path = '/dev/asm-disk5';

GROUP_NUMBER DISK_NUMBER PATH NAME STATE TOTAL_MB FREE_MB
------------ ----------- --------------- ---------- -------- ---------- ----------
0 1 /dev/asm-disk5 NORMAL 0 0

可以看到,虽然删除操作执行完成,但是磁盘并没有真正被删掉,ASM在后台尝试将磁盘上的数据挪到其他可用磁盘中,这时磁盘的状态为DROPPING

当后台数据同步的操作完成,磁盘的组信息被清除,磁盘恢复STATE状态。这时这个磁盘就从ASM中被彻底删除。

来自 “ ITPUB博客 ” ,链接:http://blog.itpub.net/9390331/viewspace-705595/,如需转载,请注明出处,否则将追究法律责任。

请登录后发表评论 登录
全部评论

注册时间:2009-08-26

  • 博文量
    173
  • 访问量
    306759