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Oracle RAC环境下ASM磁盘组扩容

发表于：2026-11-03 作者：千家信息网编辑

千家信息网最后更新 2026年11月03日，Oracle RAC环境下ASM磁盘组扩容生产环境注意调整以下参数：++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

千家信息网最后更新 2026年11月03日Oracle RAC环境下ASM磁盘组扩容

Oracle RAC环境下ASM磁盘组扩容

生产环境注意调整以下参数：

+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

+ 1.节点间滚动添加UDEV磁盘

+ 2.ASM 内存大小

+ 3.POWER_LIMIT别弄太大

+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

实验环境

--系统环境:Centos 6.10

--数据库：Oracle 11g RAC

--磁盘绑定：udev

实验目的

--存储空间不足，需要给磁盘组DATA加一块磁盘

准备工作

1.检查各个节点database、asm及grid日志是否有错误信息

2.检查各个节点服务状态(切换到grid用户)

--列出数据库名

[grid@node2 ~]$ srvctl config database

RacNode

[grid@node2 ~]$

--实例状态

[grid@node2 ~]$ srvctl status database -d RacNode

Instance RacNode1 is running on node node1

Instance RacNode2 is running on node node2

[grid@node2 ~]$

--集群状态:

[grid@node2 ~]$ crsctl check cluster -all

**************************************************************

node1:

CRS-4537: Cluster Ready Services is online

CRS-4529: Cluster Synchronization Services is online

CRS-4533: Event Manager is online

**************************************************************

node2:

CRS-4537: Cluster Ready Services is online

CRS-4529: Cluster Synchronization Services is online

CRS-4533: Event Manager is online

**************************************************************

[grid@node2 ~]$

--集群资源状态

[grid@node2 ~]$ crsctl status res -t

3.ASM磁盘组及磁盘检查

[grid@node1 ~]$ export ORACLE_SID=+ASM1

[grid@node1 ~]$ sqlplus /nolog

SQL> conn /as sysasm

--显示使用ASM磁盘组的数据库

SQL> col INSTANCE_NAME format a20

SQL> col SOFTWARE_VERSION format a20

SQL> select * from gv$asm_client order by 1,2;

INST_ID GROUP_NUMBER INSTANCE_NAME DB_NAME STATUS SOFTWARE_VERSION COMPATIBLE_VERSION

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

1 1 RacNode1 RacNode CONNECTED 11.2.0.4.0 11.2.0.4.0

1 1 +ASM1 +ASM CONNECTED 11.2.0.4.0 11.2.0.4.0

1 3 +ASM1 +ASM CONNECTED 11.2.0.4.0 11.2.0.4.0

2 1 RacNode2 RacNode CONNECTED 11.2.0.4.0 11.2.0.4.0

2 1 +ASM2 +ASM CONNECTED 11.2.0.4.0 11.2.0.4.0

2 3 +ASM2 +ASM CONNECTED 11.2.0.4.0 11.2.0.4.0

SQL>

--显示磁盘组

SQL> select group_number,name,state,type,total_mb,free_mb,usable_file_mb,allocation_unit_size/1024/1024 unit_mb from v$asm_diskgroup order by 1;

GROUP_NUMBER NAME STATE TYPE TOTAL_MB FREE_MB USABLE_FILE_MB UNIT_MB

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

1 DATA MOUNTED NORMAL 4096 477 -273 1

2 FLASH MOUNTED EXTERN 2048 1951 1951 1

3 OCRVOTE MOUNTED NORMAL 3072 2146 561 1

SQL>

--显示磁盘

SQL> col NAME format a25

SQL> col PATH format a40

SQL> col FAILGROUP format a25

SQL> select group_number,name,path,mount_status,state,redundancy,total_mb,free_mb,failgroup,create_date from v$asm_disk order by 1,2;

GROUP_NUMBER NAME PATH MOUNT_S STATE REDUNDA TOTAL_MB FREE_MB FAILGROUP CREATE_DA

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

1 DATA_0000 /dev/asm-data01 CACHED NORMAL UNKNOWN 1024 118 DATA_0000 11-DEC-18

1 DATA_0001 /dev/asm-data02 CACHED NORMAL UNKNOWN 1024 125 DATA_0001 11-DEC-18

1 DATA_0002 /dev/asm-data03 CACHED NORMAL UNKNOWN 1024 115 DATA_0002 11-DEC-18

1 DATA_0003 /dev/asm-data04 CACHED NORMAL UNKNOWN 1024 119 DATA_0003 11-DEC-18

2 FLASH_0000 /dev/asm-arch01 CACHED NORMAL UNKNOWN 1024 975 FLASH_0000 11-DEC-18

2 FLASH_0001 /dev/asm-arch02 CACHED NORMAL UNKNOWN 1024 976 FLASH_0001 11-DEC-18

3 OCRVOTE_0000 /dev/asm-ocrvote01 CACHED NORMAL UNKNOWN 1024 715 OCRVOTE_0000 11-DEC-18

3 OCRVOTE_0001 /dev/asm-ocrvote02 CACHED NORMAL UNKNOWN 1024 715 OCRVOTE_0001 11-DEC-18

3 OCRVOTE_0002 /dev/asm-ocrvote03 CACHED NORMAL UNKNOWN 1024 716 OCRVOTE_0002 11-DEC-18

SQL>

4.系统层面UDEV信息

[root@node2 ~]# cat /etc/udev/rules.d/99-oracle-asmdevices.rules

KERNEL=="sd*", BUS=="scsi", PROGRAM=="/sbin/scsi_id --whitelisted --replace-whitespace --device=/dev/$name", RESULT=="1ATA_VBOX_HARDDISK_VB132e6928-d49d18d4", NAME="asm-ocrvote01", OWNER="grid", GROUP="asmadmin", MODE="0660"

KERNEL=="sd*", BUS=="scsi", PROGRAM=="/sbin/scsi_id --whitelisted --replace-whitespace --device=/dev/$name", RESULT=="1ATA_VBOX_HARDDISK_VB58647ee7-b466963a", NAME="asm-ocrvote02", OWNER="grid", GROUP="asmadmin", MODE="0660"

KERNEL=="sd*", BUS=="scsi", PROGRAM=="/sbin/scsi_id --whitelisted --replace-whitespace --device=/dev/$name", RESULT=="1ATA_VBOX_HARDDISK_VB4c771d58-f17105b9", NAME="asm-ocrvote03", OWNER="grid", GROUP="asmadmin", MODE="0660"

KERNEL=="sd*", BUS=="scsi", PROGRAM=="/sbin/scsi_id --whitelisted --replace-whitespace --device=/dev/$name", RESULT=="1ATA_VBOX_HARDDISK_VB88c685cb-3a4633f4", NAME="asm-data01", OWNER="grid", GROUP="asmadmin", MODE="0660"

KERNEL=="sd*", BUS=="scsi", PROGRAM=="/sbin/scsi_id --whitelisted --replace-whitespace --device=/dev/$name", RESULT=="1ATA_VBOX_HARDDISK_VB1b30fd18-af14e003", NAME="asm-data02", OWNER="grid", GROUP="asmadmin", MODE="0660"

KERNEL=="sd*", BUS=="scsi", PROGRAM=="/sbin/scsi_id --whitelisted --replace-whitespace --device=/dev/$name", RESULT=="1ATA_VBOX_HARDDISK_VB67a4423a-e151f28b", NAME="asm-data03", OWNER="grid", GROUP="asmadmin", MODE="0660"

KERNEL=="sd*", BUS=="scsi", PROGRAM=="/sbin/scsi_id --whitelisted --replace-whitespace --device=/dev/$name", RESULT=="1ATA_VBOX_HARDDISK_VB81f04366-170fc910", NAME="asm-data04", OWNER="grid", GROUP="asmadmin", MODE="0660"

KERNEL=="sd*", BUS=="scsi", PROGRAM=="/sbin/scsi_id --whitelisted --replace-whitespace --device=/dev/$name", RESULT=="1ATA_VBOX_HARDDISK_VB9a0f6e52-bcfcb52c", NAME="asm-arch01", OWNER="grid", GROUP="asmadmin", MODE="0660"

KERNEL=="sd*", BUS=="scsi", PROGRAM=="/sbin/scsi_id --whitelisted --replace-whitespace --device=/dev/$name", RESULT=="1ATA_VBOX_HARDDISK_VB1f2bac75-512a46ae", NAME="asm-arch02", OWNER="grid", GROUP="asmadmin", MODE="0660"

[root@node2 ~]#

[root@node2 ~]# ll /dev/asm-*

brw-rw---- 1 grid asmadmin 8, 16 Dec 12 17:22 /dev/asm-arch01

brw-rw---- 1 grid asmadmin 8, 32 Dec 12 16:21 /dev/asm-arch02

brw-rw---- 1 grid asmadmin 8, 48 Dec 12 17:22 /dev/asm-data01

brw-rw---- 1 grid asmadmin 8, 64 Dec 12 17:22 /dev/asm-data02

brw-rw---- 1 grid asmadmin 8, 80 Dec 12 17:22 /dev/asm-data03

brw-rw---- 1 grid asmadmin 8, 96 Dec 12 17:22 /dev/asm-data04

brw-rw---- 1 grid asmadmin 8, 112 Dec 12 17:22 /dev/asm-ocrvote01

brw-rw---- 1 grid asmadmin 8, 128 Dec 12 17:22 /dev/asm-ocrvote02

brw-rw---- 1 grid asmadmin 8, 144 Dec 12 17:22 /dev/asm-ocrvote03

[root@node2 ~]#

进入实验阶段

1.停止对应数据库的业务

2.检查数据库会话及停止监听

--检查各个节点监听状态

[grid@node1 ~]$ srvctl status listener -n node1

Listener LISTENER is enabled on node(s): node1

Listener LISTENER is running on node(s): node1

[grid@node1 ~]$ srvctl status listener -n node2

Listener LISTENER is enabled on node(s): node2

Listener LISTENER is running on node(s): node2

[grid@node1 ~]$

--禁止监听自启动

[grid@node1 ~]$ srvctl disable listener -n node1

[grid@node1 ~]$ srvctl disable listener -n node2

--停止监听

[grid@node1 ~]$ srvctl stop listener -n node1

[grid@node1 ~]$ srvctl stop listener -n node2

--查看停止及关闭自启后的监听状态

[grid@node1 ~]$ srvctl status listener -n node1

Listener LISTENER is disabled on node(s): node1

Listener LISTENER is not running on node(s): node1

[grid@node1 ~]$ srvctl status listener -n node2

Listener LISTENER is disabled on node(s): node2

Listener LISTENER is not running on node(s): node2

[grid@node1 ~]$

3.关闭数据库

--检查数据库配置

[grid@node1 ~]$ srvctl config database -d RacNode

Database unique name: RacNode

Database name: RacNode

Oracle home: /u01/app/oracle/11.2.0/dbhome_1

Oracle user: oracle

Spfile: +DATA/RacNode/spfileRacNode.ora

Domain:

Start options: open

Stop options: immediate

Database role: PRIMARY

Management policy: AUTOMATIC

Server pools: RacNode

Database instances: RacNode1,RacNode2

Disk Groups: DATA

Mount point paths:

Services:

Type: RAC

Database is administrator managed

[grid@node1 ~]$

--禁止数据库自启动（需切换root用户）

[root@node2 ~]# cd /u01/app/11.2.0/grid/bin

[root@node2 bin]# ./srvctl disable database -d RacNode

[root@node2 bin]#

--关闭数据库

[grid@node1 ~]$ srvctl stop database -d RacNode

[grid@node1 ~]$

--检查关闭后数据库状态

[grid@node1 ~]$ srvctl status database -d RacNode

Instance RacNode1 is not running on node node1

Instance RacNode2 is not running on node node2

[grid@node1 ~]$

4.关闭集群软件

--查看各个节点集群是否为自启动

[root@node1 bin]# ./crsctl config has

CRS-4622: Oracle High Availability Services autostart is enabled.

[root@node1 bin]#

[root@node2 bin]# ./crsctl config has

CRS-4622: Oracle High Availability Services autostart is enabled.

--禁止各个节点的自启动

[root@node1 bin]# ./crsctl disable has

CRS-4621: Oracle High Availability Services autostart is disabled.

[root@node1 bin]#

[root@node2 bin]# ./crsctl disable has

CRS-4621: Oracle High Availability Services autostart is disabled.

[root@node2 bin]#

--查看各个节点禁止自启动是否生效

[root@node1 bin]# ./crsctl config has

CRS-4621: Oracle High Availability Services autostart is disabled.

[root@node1 bin]#

[root@node2 bin]# ./crsctl config has

CRS-4621: Oracle High Availability Services autostart is disabled.

[root@node2 bin]#

--停止各个节点集群

[root@node1 bin]# ./crsctl stop has

[root@node2 bin]# ./crsctl stop has

5.系统层面添加磁盘(存储工程师协助完成)

6.各个节点使用UDEV添加磁盘

--确定盘符

fdisk -l

/dev/sdk

/dev/sdl

/dev/sdm

/dev/sdn

--获取绑定规则

for i in k l m n

echo "KERNEL==\"sd*\", BUS==\"scsi\", PROGRAM==\"/sbin/scsi_id --whitelisted --replace-whitespace --device=/dev/\$name\", RESULT==\"`/sbin/scsi_id --whitelisted --replace-whitespace --device=/dev/sd$i`\", NAME=\"asm-disk$i\", OWNER=\"grid\", GROUP=\"asmadmin\", MODE=\"0660\""

done

KERNEL=="sd*", BUS=="scsi", PROGRAM=="/sbin/scsi_id --whitelisted --replace-whitespace --device=/dev/$name", RESULT=="1ATA_VBOX_HARDDISK_VB00e4d091-5990307e", NAME="asm-data05", OWNER="grid", GROUP="asmadmin", MODE="0660"

KERNEL=="sd*", BUS=="scsi", PROGRAM=="/sbin/scsi_id --whitelisted --replace-whitespace --device=/dev/$name", RESULT=="1ATA_VBOX_HARDDISK_VB8bc8125c-72dacc92", NAME="asm-data06", OWNER="grid", GROUP="asmadmin", MODE="0660"

KERNEL=="sd*", BUS=="scsi", PROGRAM=="/sbin/scsi_id --whitelisted --replace-whitespace --device=/dev/$name", RESULT=="1ATA_VBOX_HARDDISK_VBc195c913-00f6c68e", NAME="asm-data07", OWNER="grid", GROUP="asmadmin", MODE="0660"

KERNEL=="sd*", BUS=="scsi", PROGRAM=="/sbin/scsi_id --whitelisted --replace-whitespace --device=/dev/$name", RESULT=="1ATA_VBOX_HARDDISK_VB720e4cca-32c20936", NAME="asm-data08", OWNER="grid", GROUP="asmadmin", MODE="0660"

--各个节点将规则添加到rule文件99-oracle-asmdevices.rules

--重启udev

[root@node1 rules.d]# start_udev

[root@node2 rules.d]# start_udev

--确认添加磁盘，确保各个节点可以识别到磁盘且一致

[root@node2 rules.d]# ll /dev/asm-*

brw-rw---- 1 grid asmadmin 8, 16 Dec 13 16:02 /dev/asm-arch01

brw-rw---- 1 grid asmadmin 8, 32 Dec 13 16:02 /dev/asm-arch02

brw-rw---- 1 grid asmadmin 8, 48 Dec 13 16:02 /dev/asm-data01

brw-rw---- 1 grid asmadmin 8, 64 Dec 13 16:02 /dev/asm-data02

brw-rw---- 1 grid asmadmin 8, 80 Dec 13 16:02 /dev/asm-data03

brw-rw---- 1 grid asmadmin 8, 96 Dec 13 16:02 /dev/asm-data04

brw-rw---- 1 grid asmadmin 8, 160 Dec 13 16:13 /dev/asm-data05

brw-rw---- 1 grid asmadmin 8, 176 Dec 13 16:13 /dev/asm-data06

brw-rw---- 1 grid asmadmin 8, 192 Dec 13 16:13 /dev/asm-data07

brw-rw---- 1 grid asmadmin 8, 208 Dec 13 16:13 /dev/asm-data08

brw-rw---- 1 grid asmadmin 8, 112 Dec 13 16:02 /dev/asm-ocrvote01

brw-rw---- 1 grid asmadmin 8, 128 Dec 13 16:02 /dev/asm-ocrvote02

brw-rw---- 1 grid asmadmin 8, 144 Dec 13 16:02 /dev/asm-ocrvote03

[root@node2 rules.d]#

7.启动集群

[root@node1 bin]# ./crsctl start has

CRS-4123: Oracle High Availability Services has been started.

[root@node2 bin]# ./crsctl start has

CRS-4123: Oracle High Availability Services has been started.

[root@node2 bin]#

--检查集群的各个组件是否启动正常

[grid@node2 ~]$ crsctl status res -t

此时，监听和数据库服务是停掉的

8.ASM扩容

--检查asm是否识别到未添加的磁盘

SQL> set line 200

SQL> col NAME format a25

SQL> col PATH format a40

SQL> col FAILGROUP format a25

SQL> select group_number,name,path,mount_status,state,redundancy,total_mb,free_mb,failgroup,create_date from v$asm_disk order by 1,2;

GROUP_NUMBER NAME PATH MOUNT_S STATE REDUNDA TOTAL_MB FREE_MB FAILGROUP CREATE_DA

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

0 /dev/asm-data07 CLOSED NORMAL UNKNOWN 0 0

0 /dev/asm-data08 CLOSED NORMAL UNKNOWN 0 0

0 /dev/asm-data06 CLOSED NORMAL UNKNOWN 0 0

0 /dev/asm-data05 CLOSED NORMAL UNKNOWN 0 0