advmutil dismount

Purpose

The advmutil dismount command dismounts Oracle ADVM volume devices for file systems that are not Oracle ACFS.

Syntax and Description

advmutil dismount [/unregister] {drive_letter | dir}
advmutil dismount [/unregister] [/all | /dg=disk_group]

Table 16-22 contains the options available with the Windows advmutil dismount command.

Table 16-22 Options for the advmutil dismount command

Option Description

drive_letter

Specifies the drive letter to dismount.

dir

Specifies the directory of the mount point, including the drive letter.

/all

Specifies to dismount all file systems on this node.

/unregister

Optionally unregister an Oracle ADVM volume device and its drive letter from the system registry. Upon startup of the Oracle ASM instance and Oracle ACFS, the unregistered drive letter and Oracle ADVM volume symbolic links are not created.

/dg=disk_group

Optional name of the disk group containing the registered Oracle ADVM volume devices to create drive letters or possibly mount or dismount file systems.

Note:

To format an Oracle ADVM volume device with NTFS, it must be mounted on a drive letter. After formatting, Oracle ADVM volume devices with NTFS can be mounted on either a drive letter or a directory.

To successfully run this command, the local Oracle ASM instance must be running and the disk groups required by this command must have been created and mounted in the Oracle ASM instance and volumes enabled.

Examples

These examples show how to dismount a file system that is not Oracle ACFS.

  1. The first example shows how to remove a drive letter for an Oracle ADVM volume device which disallows access to the file system.

  2. The second example shows how to remove a drive letter for an Oracle ADVM volume device which disallows access to the file system and removes it from the registry.

  3. The third example shows how to remove a drive letter for all registered Oracle ADVM volume devices which disallows access to all file systems.

  4. The fourth example shows how to remove a drive letter for all registered Oracle ADVM volume devices in a particular Oracle ASM disk group which disallows access to all related file systems.

Example 16-18 Using the advmutil dismount command

C:\> advmutil dismount H:

C:\> advmutil dismount H: /unregister

C:\> advmutil dismount /all

C:\> advmutil dismount /dg=data