在centos5.8 64位系統上安裝完一套oracle 11.2.0.3 rac測試環境後，發現acfs和advm無法使用，ASMCA圖形界面的acfs和volume選項卡為灰色！這是由於acfs不支持centos系統導致的，下面就介紹下如何在配置centos上使用acfs集群文件系統！
一：問題描述
[grid@rac1 ~]$ sqlplus / as sysasm
SQL*Plus: Release 11.2.0.3.0 Production on Wed Feb 20 10:34:44 2013
Copyright (c) 1982, 2011, Oracle. All rights reserved.
Connected to:
Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production
With the Real Application Clusters and Automatic Storage Management options
SQL> alter diskgroup data set attribute 'COMPATIBLE.ASM'='11.2';
Diskgroup altered.
SQL> alter diskgroup data add volume acfsvol size 1G;
alter diskgroup data add volume acfsvol size 1G
*
ERROR at line 1:
ORA-15032: not all alterations performed
ORA-15477: cannot communicate with the volume driver
[root@rac1 ~]# /u01/app/11.2.0/grid/bin/acfsload start -s
ACFS-9459: ADVM/ACFS is not supported on this OS version: 'centos-release-5-8.el5.centos'
[root@rac1 ~]# su - grid
[grid@rac1 ~]$ export DISPLAY=192.168.1.156:0
[grid@rac1 ~]$ asmca
二：修改osds_acfslib.pm腳本代碼,rac2節點做同樣的修改
[root@rac1 ~]# cd /u01/app/11.2.0/grid/lib/
[root@rac1 lib]# cp -p osds_acfslib.pm osds_acfslib.pm.bak
[root@rac1 lib]# vi osds_acfslib.pm
if ((defined($release)) && # Redhat or OEL if defined
(($release =~ /^redhat-release/) || # straight RH
($release =~ /^enterprise-release/) || # Oracle Enterprise Linux
($release =~ /^oraclelinux-release/))) # Oracle Linux
{
將上面的代碼片段修改如下:
if ((defined($release)) && # Redhat or OEL if defined
(($release =~ /^redhat-release/) || # straight RH
($release =~ /^enterprise-release/) || # Oracle Enterprise Linux
($release =~ /^centos-release/) || # CentOS hack
($release =~ /^oraclelinux-release/))) # Oracle Linux
{
三：安裝acfs，配置acfs和advm模塊啟動自動加載，rac2節點做同樣的配置
[root@rac1 ~]# /u01/app/11.2.0/grid/bin/acfsload start -s
ACFS-9129: ADVM/ACFS not installed
[root@rac1 ~]# /u01/app/11.2.0/grid/bin/acfsroot install
ACFS-9300: ADVM/ACFS distribution files found.
ACFS-9307: Installing requested ADVM/ACFS software.
ACFS-9308: Loading installed ADVM/ACFS drivers.
ACFS-9321: Creating udev for ADVM/ACFS.
ACFS-9323: Creating module dependencies - this may take some time.
ACFS-9154: Loading 'oracleoks.ko' driver.
ACFS-9154: Loading 'oracleadvm.ko' driver.
ACFS-9154: Loading 'oracleacfs.ko' driver.
ACFS-9327: Verifying ADVM/ACFS devices.
ACFS-9156: Detecting control device '/dev/asm/.asm_ctl_spec'.
ACFS-9156: Detecting control device '/dev/ofsctl'.
ACFS-9309: ADVM/ACFS installation correctness verified.
[root@rac1 ~]# /u01/app/11.2.0/grid/bin/acfsload start -s
[root@rac1 ~]# lsmod |grep oracle
oracleacfs 1670360 1
oracleadvm 260320 5
oracleoks 321904 2 oracleacfs,oracleadvm
[root@rac1 ~]# cat > /etc/init.d/acfsload <<EOF
> #!/bin/sh
> # chkconfig: 2345 30 21
> # description: Load Oracle ASM volume driver on system startup
> ORACLE_HOME=/u01/app/11.2.0/grid
> export ORACLE_HOME
> \$ORACLE_HOME/bin/acfsload start -s
> EOF
[root@rac1 ~]# chmod 755 /etc/init.d/acfsload
[root@rac1 ~]# chkconfig --add acfsload
[root@rac1 ~]# chkconfig --list | grep acfsload
acfsload 0:off 1:off 2:on 3:on 4:on 5:on 6:off
四：添加ora.registry.acfs到ocr配置中
[root@rac1 ~]# /u01/app/11.2.0/grid/bin/crsctl add type ora.registry.acfs.type \
> -basetype ora.local_resource.type \
> -file /u01/app/11.2.0/grid/crs/template/registry.acfs.type
[root@rac1 ~]# /u01/app/11.2.0/grid/bin/crsctl add resource ora.registry.acfs \
> -attr ACL=\'owner:root:rwx,pgrp:oinstall:r-x,other::r--\' \
> -type ora.registry.acfs.type -f
[root@rac1 ~]# su - grid -c crs_stat | grep acfs
NAME=ora.registry.acfs
TYPE=ora.registry.acfs.type
[root@rac2 ~]# su - grid -c crs_stat | grep acfs
NAME=ora.registry.acfs
TYPE=ora.registry.acfs.type
[root@rac1 ~]# /sbin/acfsutil registry
五：創建卷並格式化成acfs集群文件系統並掛載
SQL> alter diskgroup data add volume acfsvol size 1G;
Diskgroup altered.
[root@rac1 ~]# mkdir /sharedisk
[root@rac2 ~]# mkdir /sharedisk
[root@rac1 ~]# /sbin/mkfs -t acfs -n ACFSVOL1 /dev/asm/acfsvol-53
mkfs.acfs: version = 11.2.0.3.0
mkfs.acfs: on-disk version = 39.0
mkfs.acfs: volume = /dev/asm/acfsvol-53
mkfs.acfs: volume size = 1073741824
mkfs.acfs: Format complete.
[root@rac1 ~]# /sbin/acfsutil registry -a -f /dev/asm/acfsvol-53 /sharedisk/
acfsutil registry: mount point /sharedisk successfully added to Oracle Registry
[root@rac1 ~]# mount.acfs -o all
[root@rac1 ~]# df -h
Filesystem Size Used Avail Use% Mounted on
/dev/mapper/VolGroup00-LogVol00
93G 19G 70G 21% /
/dev/sda1 190M 17M 165M 9% /boot
tmpfs 2.0G 1.2G 807M 60% /dev/shm
/dev/asm/acfsvol-53 1.0G 39M 986M 4% /sharedisk
[root@rac2 ~]# mount.acfs -o all
[root@rac2 ~]# df -h
Filesystem Size Used Avail Use% Mounted on
/dev/mapper/VolGroup00-LogVol00
93G 12G 77G 14% /
/dev/sda1 99M 17M 78M 18% /boot
tmpfs 2.0G 1.2G 807M 60% /dev/shm
/dev/asm/acfsvol-53 1.0G 73M 952M 8% /sharedisk
[root@rac1 ~]# /sbin/acfsutil info fs
/sharedisk
ACFS Version: 11.2.0.3.0
flags: MountPoint,Available
mount time: Wed Feb 20 12:11:52 2013
volumes: 1
total size: 1073741824
total free: 998002688
primary volume: /dev/asm/acfsvol-53
label: ACFSVOL1
flags: Primary,Available,ADVM
on-disk version: 39.0
allocation unit: 4096
major, minor: 252, 27137
size: 1073741824
free: 998002688
ADVM diskgroup DATA
ADVM resize increment: 33554432
ADVM redundancy: unprotected
ADVM stripe columns: 4
ADVM stripe width: 131072
number of snapshots: 0
snapshot space usage: 0
replication status: DISABLED
