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