测试环境如下:
?.64-bit Oracle Linux 5.4
?.Oracle Restart and ASM version 11.2.0.4.0 - 64bit

设置ACFS volumes
单实例加载ADVM/ACFS驱动的命令如下，RAC环境不需要，因为已经默认加载
[root@jyrac1 bin]# ./acfsroot install
ACFS-9300: ADVM/ACFS distribution files found.
ACFS-9118: oracleadvm.ko driver in use - cannot unload.
ACFS-9312: Existing ADVM/ACFS installation detected.
ACFS-9118: oracleadvm.ko driver in use - cannot unload.
ACFS-9314: Removing previous ADVM/ACFS installation.
ACFS-9315: Previous ADVM/ACFS components successfully removed.
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 '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@jyrac1 bin]#? ./acfsload? start
ACFS-9391: Checking for existing ADVM/ACFS installation.
ACFS-9392: Validating ADVM/ACFS installation files for operating system.
ACFS-9393: Verifying ASM Administrator setup.
ACFS-9308: Loading installed ADVM/ACFS drivers.
ACFS-9327: Verifying ADVM/ACFS devices.
ACFS-9156: Detecting control device '/dev/asm/.asm_ctl_spec'.
ACFS-9156: Detecting control device '/dev/ofsctl'.
ACFS-9322: completed
[root@jyrac1 bin]# ./acfsdriverstate version
ACFS-9325:? ? Driver OS kernel version = 2.6.18-8.el5(x86_64).
ACFS-9326:? ? Driver Oracle version = 130707.

创建一个用来创建ASM集群文件系统的磁盘组
SQL> create diskgroup acfs disk '/dev/raw/raw5','/dev/raw/raw6' attribute 'COMPATIBLE.ASM' = '11.2', 'COMPATIBLE.ADVM' = '11.2';

Diskgroup created.

?

虽然一个磁盘组可以用来存储数据库文件与ACFS volume files，但是建议为ACFS volume创建一个单独的磁盘组。这将提供角色/功能分离与对数据库文件性能有潜在好处。

检查所有磁盘组的AU大小
SQL> select group_number "Group#", name "Name", allocation_unit_size "AU size" from v$asm_diskgroup_stat;

? ? Group# Name? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? AU size
---------- ------------------------------------------------------------ ----------
? ? ? ? 1 ARCHDG? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? 1048576
? ? ? ? 2 CRSDG? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? 1048576
? ? ? ? 3 DATADG? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? 1048576
? ? ? ? 4 ACFS? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? 1048576

对于所有磁盘组来说缺省的AU大小为1MB，当后面介绍volume file的区大小时会使用到AU大小。

在磁盘组ACFS中创建三个volume
[grid@jyrac1 ~]$ asmcmd volcreate -G ACFS -s 1G ACFS_VOL1
[grid@jyrac1 ~]$ asmcmd volcreate -G ACFS -s 1G ACFS_VOL2
[grid@jyrac1 ~]$ asmcmd volcreate -G ACFS -s 1G ACFS_VOL3

查看volume信息
[grid@jyrac1 ~]$ asmcmd volinfo -a
Diskgroup Name: ACFS

? ? ? ? Volume Name: ACFS_VOL1
? ? ? ? Volume Device: /dev/asm/acfs_vol1-10
? ? ? ? State: ENABLED
? ? ? ? Size (MB): 1024
? ? ? ? Resize Unit (MB): 32
? ? ? ? Redundancy: MIRROR
? ? ? ? Stripe Columns: 4
? ? ? ? Stripe Width (K): 128
? ? ? ? Usage:
? ? ? ? Mountpath:

? ? ? ? Volume Name: ACFS_VOL2
? ? ? ? Volume Device: /dev/asm/acfs_vol2-10
? ? ? ? State: ENABLED
? ? ? ? Size (MB): 1024
? ? ? ? Resize Unit (MB): 32
? ? ? ? Redundancy: MIRROR
? ? ? ? Stripe Columns: 4
? ? ? ? Stripe Width (K): 128
? ? ? ? Usage:
? ? ? ? Mountpath:

? ? ? ? Volume Name: ACFS_VOL3
? ? ? ? Volume Device: /dev/asm/acfs_vol3-10
? ? ? ? State: ENABLED
? ? ? ? Size (MB): 1024
? ? ? ? Resize Unit (MB): 32
? ? ? ? Redundancy: MIRROR
? ? ? ? Stripe Columns: 4
? ? ? ? Stripe Width (K): 128
? ? ? ? Usage:
? ? ? ? Mountpath: