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How To Setup ASM (11.2) On An Active/Passive Cluster (Non-RAC). [ID 1296124.1]

原创 Linux操作系统 作者:lhl1212 时间:2011-04-10 00:51:20 0 删除 编辑
How To Setup ASM (11.2) On An Active/Passive Cluster (Non-RAC). [ID 1296124.1]

  修改时间 15-FEB-2011     类型 HOWTO     状态 PUBLISHED  

In this Document
  Goal
  Solution


Applies to:

Oracle Server - Enterprise Edition - Version: 11.2.0.1 to 11.2.0.2 - Release: 11.2 to 11.2
Information in this document applies to any platform.

Goal

In order to provide the maximum ASM high availability on a cluster, it is always better and recommended to setup the powerful Oracle RAC architecture (this is the best option).

But if you decided to setup ASM on an active/passive cluster you can follow the next steps to setup ASM:

Solution

A) Setup the Active/Passive Cluster using third party clusterware (which provides the failover) such as Veritas, SFRAC, IBMPowerHA, or HP Serviceguard.

Note: Please check with your cluster vendor for details about the clusterware configuration.

B) Then in order to setup an ASM 11gR2 (Grid Infrastructure) Active/Passive Cluster (non-RAC), please follow the next steps:

On Node #1

1) You need to install the 11.2 GI Infrastructure Standalone “Software Only” first.

2) Then configure the CSS & OHAS services as root user:

# $/crs/install/roothas.pl -deconfig -force

# $/crs/install/roothas.pl


3) Perform. the next steps as oracle user:

$> /bin/crsctl modify resource "ora.cssd" -attr "AUTO_START=1"

$>/bin/crsctl modify resource "ora.diskmon" -attr "AUTO_START=1"


4) Check the CSS & OHAS state as oracle OS user:

$> crsctl check has

$> crsctl check css


5) Create the default listener (LISTENER) thru the NETCA using port 1521.

6) Create the init+ASM.ora file on the $/dbs directory with the next parameters:

asm_diskgroups=

asm_diskstring= 'ORCL:*' -- or '/dev/oracleasm/disks/*'

instance_type='asm'

large_pool_size=12M


7) Add the ASM instance as oracle user or the Grid Infrastructure installation owner and execute:

$> $/bin/srvctl add asm


8) Enable Auto Start as follow:

$> $/bin/crsctl modify resource "ora.asm" -attr "AUTO_START=1"


9) Make sure the disks are discovered by kfod:

Example:

kfod asm_diskstring='ORCL:*' disks=all

kfod asm_diskstring='/dev/oracleasm/disks/*' disks=all


10) If so, then startup the ASM instance as follow:

$> export ORACLE_SID=+ASM

$> sqlplus “/as sysasm”

SQL> startup pfile=init+ASM.ora --#init file from point #6

SQL> show parameter asm


11) Create a new diskgroup:

SQL> create diskgroup DATA external redundancy disk '';


12) Validate the diskgroup was mounted:


SQL> select name, state from v$asm_diskgroup;


13) Then shutdown the ASM instance to setup node #2.

On Node #2

14) You need to install the 11.2 GI Infrastructure Standalone “Software Only” first.

15) Then configure the CSS & OHAS services as root user:

# $/crs/install/roothas.pl -deconfig -force

# $/crs/install/roothas.pl


16) Perform. the next steps as oracle user:

$> /bin/crsctl modify resource "ora.cssd" -attr "AUTO_START=1"

$>/bin/crsctl modify resource "ora.diskmon" -attr "AUTO_START=1"


17) Check the CSS & OHAS state as oracle OS user:

$> crsctl check has

$> crsctl check css


18) Create the default listener (LISTENER) thru the NETCA using port 1521.

19) Create the init+ASM.ora file on the $/dbs directory with the next parameters:

asm_diskgroups=

asm_diskstring= 'ORCL:*' -- or '/dev/oracleasm/disks/*'

instance_type='asm'

large_pool_size=12M


20) Add the ASM instance as oracle user or the Grid Infrastructure installation owner and execute:

$> $/bin/srvctl add asm


21) Enable Auto Start as follow:


$> $/bin/crsctl modify resource "ora.asm" -attr "AUTO_START=1"


22) Make sure the disks are discovered by kfod:

Example:

kfod asm_diskstring='ORCL:*' disks=all

kfod asm_diskstring='/dev/oracleasm/disks/*' disks=all


23) If so, then startup the ASM instance as follow:

$> export ORACLE_SID=+ASM

$> sqlplus “/as sysasm”

SQL> startup pfile=init+ASM.ora --#init file from point #19

SQL> show parameter asm

 

24) Validate the diskgroup was mounted:

SQL> select name, state from v$asm_diskgroup;


Note: You do not need to create new diskgroup(s), since they were already created from node #1 on a shared storage between the 2 nodes.

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