This post is a translation of another one that I’ve originally wrote in portuguese. I’ve decided to share with the international Oracle community through my weblog.
ACFS stands for ASM Cluster File System. ACFS is a new file system created by Oracle that is created on top of an ASM Disk Group. The architecture is very simple and these mount points can contain both general purpose files (except db files) or Oracle Home binaries, which is very good for sharing binaries.
There are three ways to setup ACFS:
[root@node1 ~]# mkdir /u02/oradata/acfs [root@node1 ~]# chown oracle:oinstall /u02/oradata/acfs
Now we can go to the directory mounted on the ASM volume formated as ACFS, and create some bogus text file:[oracle@node1 ~]$ df -m Filesystem 1M-blocks Used Available Use% Mounted on /dev/mapper/VolGroup00-LogVol00 47551 16389 28708 37% / /dev/sda1 99 11 83 12% /boot tmpfs 1014 662 352 66% /dev/shm /dev/sdd1 512 351 162 69% /u02/oradata/cluster-lmc /dev/asm/volumezinho-486 512 101 412 20% /u02/oradata/acfs/data_volumezinho [oracle@node1 ~]$ cd /u02/oradata/acfs/data_volumezinho [oracle@node1 data_volumezinho]$ ll total 68 -rw-r--r-- 1 oracle oinstall 89 Sep 24 14:33 ficheiro.txt drwx------ 2 root root 65536 Sep 24 14:20 lost+found [oracle@node1 data_volumezinho]$ cat ficheiro.txtPrimeiro ficheiro de texto criado num volume ASM no qual foi montado um ACFS!!!Yupii!![oracle@node1 data_volumezinho]$Technology is an amazing thing. So many twists and turns to end up in the same place ...