Create,register,and mount an ACFS filesystem.

Create,register,and mount an ACFS filesystem.
1.Check if the ACFS drivers are loaded.
[root@host02 ~]# lsmod | grep ora
oracleacfs 787588 4
oracleadvm 177792 8
oracleoks 226784 2 oracleacfs,oracleadvm
oracleasm 46356 1
2.Create a volumne.
[root@host02 ~]# su - grid
[grid@host02 ~]$ . oraenv
ORACLE_SID = [+ASM1] ?
The Oracle base for ORACLE_HOME=/u01/app/11.2.0/grid is /u01/app/grid
[grid@host02 ~]$ asmcmd
ASMCMD> lsdg
State Type Rebal Sector Block AU Total_MB Free_MB Req_mir_free_MB Usable_file_MB Offline_disks Voting_files Name
MOUNTED EXTERN N 512 4096 1048576 9788 152 0 152 0 N ACFS/
MOUNTED NORMAL N 512 4096 1048576 9788 3582 1560 1011 0 N DATA/
MOUNTED EXTERN N 512 4096 1048576 4894 4487 0 4487 0 N FRA/
ASMCMD> volcreate -G FRA -s 1G VOLTEST
3.Get the device name.
ASMCMD> volinfo -G FRA -a
Diskgroup Name: FRA

Volume Name: VOLTEST
Volume Device: /dev/asm/voltest-14
State: ENABLED
Size (MB): 1024
Resize Unit (MB): 256
Redundancy: UNPROT
Stripe Columns: 4
Stripe Width (K): 128
Usage:
Mountpath:
4.Create the filesystem.
ASMCMD> exit
[grid@host02 ~]$ su - root
Password:
[root@host02 ~]# mkfs
Usage: mkfs [-V] [-t fstype] [fs-options] device [size]
[root@host02 ~]# mkfs -t acfs /dev/asm/voltest-14
mkfs.acfs: version = 11.2.0.1.0.0
mkfs.acfs: on-disk version = 39.0
mkfs.acfs: volume = /dev/asm/voltest-14
mkfs.acfs: volume size = 1073741824
mkfs.acfs: Format complete.
5.Mount the filesystem.
[root@host02 ~]# mkdir -p /voltest
[root@host02 ~]# mount -t acfs /dev/asm/voltest-14 /voltest
[root@host02 ~]# df -h
Filesystem Size Used Avail Use% Mounted on
/dev/xvda3 5.8G 2.9G 2.6G 53% /
/dev/xvda1 99M 13M 82M 14% /boot
tmpfs 1.1G 482M 639M 44% /dev/shm
/dev/xvdb1 2.0G 47M 1.9G 3% /home
/dev/xvdc1 15G 4.3G 9.9G 31% /u01
/dev/xvdd1 5.5G 5.4G 0 100% /stage
/dev/asm/dbhome_1-388
6.0G 4.8G 1.3G 80% /u01/app/oracle/acfsmount/11.2.0/sharedhome
/dev/asm/test-388 3.0G 173M 2.9G 6% /test
/dev/asm/images-388 256M 173M 84M 68% /u01/app/oracle/acfsmount/images
/dev/asm/voltest-14 1.0G 39M 986M 4% /voltest
[root@host02 ~]# cd /voltest
[root@host02 voltest]# ls
lost+found
[root@host02 voltest]# > test.txt
[root@host02 voltest]# ls -lrth
total 64K
drwx------ 2 root root 64K Nov 4 12:57 lost+found
-rw-r--r-- 1 root root 0 Nov 4 12:58 test.txt

Of course you can mount it from the other node and see the files under the filesystem.
[root@host02 voltest]# ssh host01
root@host01's password:
Last login: Wed Nov 2 17:46:21 2011 from 192.0.2.1
[root@host01 ~]# mkdir /voltest
[root@host01 ~]# mount -t acfs /dev/asm/voltest-14 /voltest
[root@host01 ~]# cd /voltest/
[root@host01 voltest]# ls
lost+found test.txt
6. Register the volume and mount point.
[root@host02 voltest]# acfsutil registry -a /dev/asm/voltest-14 /voltest/
acfsutil registry: mount point /voltest successfully added to Oracle Registry
[root@host02 voltest]# acfsutil registry -l
Device : /dev/asm/test-388 : Mount Point : /test : Options : none : Nodes : all : Disk Group : ACFS : Volume : TEST
Device : /dev/asm/images-388 : Mount Point : /u01/app/oracle/acfsmount/images : Options : none : Nodes : all : Disk Group : ACFS : Volume : IMAGES
Device : /dev/asm/voltest-14 : Mount Point : /voltest : Options : none : Nodes : all : Disk Group : FRA : Volume : VOLTEST
7. Extend the volume.
[root@host02 voltest]# acfsutil size +256M /voltest/
acfsutil size: new file system size: 1342177280 (1280MB)
[root@host02 voltest]#