Deregistering, Dismounting, and Disabling Volumes and Oracle ACFS File Systems

You can deregister an Oracle ACFS file system if you do not want the file system to be automatically mounted.

For example:

$ /sbin/acfsutil registry -d /acfsmounts/acfs1

If you deregister a file system, then you must explicitly mount the file system after Oracle Clusterware or the system is restarted.

For more information about the registry, see "About the Oracle ACFS Mount Registry". For information about acfsutil registry, see "acfsutil registry".

You can dismount a file system without deregistering the file system or disabling the volume on which the file system is mounted.

For example, you can dismount a file system and run fsck to check the file system.

# /bin/umount /acfsmounts/acfs1

# /sbin/fsck -a -v -y -t acfs /dev/asm/volume1-123

After you dismount a file system, you must explicitly mount the file system.

Use umount on Linux systems or acfsdismount on Windows systems. For information about the commands to dismount a file system, see "umount" or "acfsdismount".

Use fsck on Linux systems or acfschkdsk on Windows systems to check a file system. For information about the commands to check a file system, see "fsck" or "acfschkdsk".

To disable a volume, you must first dismount the file system on which the volume is mounted.

For example:

# /bin/umount /acfsmounts/acfs1

After a file system is dismounted, you can disable the volume and remove the volume device file.

For example:

ASMCMD> voldisable -G data volume1

Dismounting the file system and disabling a volume does not destroy data in the file system. You can enable the volume and mount the file system to access the existing data. For information about voldisable and volenable, see Managing Oracle ADVM with ASMCMD .