ASM如何删除/增加磁盘

ASM如何删除/增加磁盘

1，进入asm环境

[oracle@rac1 ~]$ export ORACLE_SID=+ASM1

[oracle@rac1 ~]$ sqlplus / as sysdba

SQL*Plus: Release 10.2.0.1.0 - Production on Wed Jan 5 14:22:46 2011

Copyright (c) 1982, 2005, Oracle. All rights reserved.

Connected to:

Oracle Database 10g Enterprise Edition Release 10.2.0.1.0 - Production

With the Partitioning, Real Application Clusters, OLAP and Data Mining options

2，查看当前的状态

SQL> select group_number, name, total_mb, free_mb, total_mb-free_mb used_mb from v$asm_disk_stat;

GROUP_NUMBER NAME TOTAL_MB FREE_MB USED_MB

------------ ------------------------------ ---------- ---------- ----------

0 1019 0 1019

0 101 0 101

0 101 0 101

1 DATA_0001 1019 565 454

1 DATA_0000 3067 2129 938

SQL> select name, total_mb, free_mb from v$asm_disk_stat;

NAME TOTAL_MB FREE_MB

------------------------------ ---------- ----------

1019 0

101 0

101 0

DATA_0001 1019 565

DATA_0000 3067 2129

SQL> select * from v$asm_operation;

no rows selected

3，开始删除磁盘DATA_0001

SQL> alter diskgroup data drop disk DATA_0001;

Diskgroup altered.

4，磁盘做rebalance操作

SQL> select * from v$asm_operation

2 ;

GROUP_NUMBER OPERA STAT POWER ACTUAL SOFAR EST_WORK EST_RATE

------------ ----- ---- ---------- ---------- ---------- ---------- ----------

EST_MINUTES

-----------

1 REBAL RUN 1 1 67 453 390

0

SQL> set linesize 200;

SQL> /

GROUP_NUMBER OPERA STAT POWER ACTUAL SOFAR EST_WORK EST_RATE EST_MINUTES

------------ ----- ---- ---------- ---------- ---------- ---------- ---------- -----------

1 REBAL RUN 1 1 167 456 414 0

SQL> select name, total_mb, free_mb from v$asm_disk_stat;

NAME TOTAL_MB FREE_MB

------------------------------ ---------- ----------

1019 0

101 0

101 0

DATA_0001 1019 732

DATA_0000 3067 1962

SQL> select * from v$asm_operation;

GROUP_NUMBER OPERA STAT POWER ACTUAL SOFAR EST_WORK EST_RATE EST_MINUTES

------------ ----- ---- ---------- ---------- ---------- ---------- ---------- -----------

1 REBAL RUN 1 1 381 454 411 0

5，继续等待磁盘已经删除

SQL> select * from v$asm_operation;

no rows selected

SQL> select * from v$asm_operation;

no rows selected

SQL> select name, total_mb, free_mb from v$asm_disk_stat;

NAME TOTAL_MB FREE_MB

------------------------------ ---------- ----------

1019 0

101 0

101 0

DATA_0000 3067 1677

SQL> select path,group_number, disk_number,mount_status,header_status,mode_status,state from v$asm_disk;

PATH GROUP_NUMBER DISK_NUMBER MOUNT_S HEADER_STATU MODE_ST STATE

---------------------------------------- ------------ ----------- ------- ------------ ------- --------

/dev/raw/raw5 0 0 CLOSED FORMER ONLINE NORMAL

/dev/raw/raw3 0 1 CLOSED CANDIDATE ONLINE NORMAL

/dev/raw/raw2 0 2 CLOSED FOREIGN ONLINE NORMAL

/dev/raw/raw1 0 4 CLOSED FOREIGN ONLINE NORMAL

/dev/raw/raw4 1 0 CACHED MEMBER ONLINE NORMAL

6,增加一个asm磁盘

SQL> ALTER DISKGROUP DATA ADD DISK '/dev/raw/raw5';

Diskgroup altered.

SQL> select path,group_number, disk_number,mount_status,header_status,mode_status,state from v$asm_disk;

PATH GROUP_NUMBER DISK_NUMBER MOUNT_S HEADER_STATU MODE_ST STATE

---------------------------------------- ------------ ----------- ------- ------------ ------- --------

/dev/raw/raw3 0 1 CLOSED CANDIDATE ONLINE NORMAL

/dev/raw/raw2 0 2 CLOSED FOREIGN ONLINE NORMAL

/dev/raw/raw1 0 4 CLOSED FOREIGN ONLINE NORMAL

/dev/raw/raw5 1 1 CACHED MEMBER ONLINE NORMAL

/dev/raw/raw4 1 0 CACHED MEMBER ONLINE NORMAL

SQL> select * from v$asm_operation;

GROUP_NUMBER OPERA STAT POWER ACTUAL SOFAR EST_WORK EST_RATE EST_MINUTES

------------ ----- ---- ---------- ---------- ---------- ---------- ---------- -----------

1 REBAL RUN 1 1 181 350 501 0

SQL> select name, total_mb, free_mb from v$asm_disk_stat;

NAME TOTAL_MB FREE_MB

------------------------------ ---------- ----------

1019 0

101 0

101 0

DATA_0001 1019 671

DATA_0000 3067 2023

SQL> select * from v$asm_operation;

no rows selected