POWER7 information

rmdev command

Purpose

Removes a device from the system.

Syntax

rmdev { -dev | -pdev } Name [ -recursive ] [ -ucfg ] [ -f ]

Description

The rmdev command unconfigures and undefines the device specified with the device logical name. If you specify the -recursive flag, the rmdev command acts on any children of the device as well. By specifying the -ucfg flag the device will be unconfigured but not undefined.

Use the -pdev flag along with the parent device's logical name to delete all of the children devices. The children are deleted in the same recursive fashion as described above for the -recursive flag. The only difference is that the specified device itself is not deleted. Thus, the -recursive flag is redundant and need not be specified with the -pdev flag.

Attention: To protect the Configuration database, the rmdev command cannot be interrupted. Stopping this command before execution is complete could result in a corrupted database.

Note: The device specified or the children of the device specified cannot be a physical or logical volume that is assigned to a shared memory pool (to be used as a paging space device by a shared memory partition).

Note: You cannot remove the interface or inet0 that is used for the shared storage pool communication.

Flags

Flag name	Description
-dev Name	Specifies the logical device, indicated by the Name parameter. This flag may not be used with the -pdev flag.
-pdev Name	Specifies the parent logical device (indicated by the Name parameter whose children need to be removed. This flag may not be used with the -dev flag.
-recursive	Unconfigures the device and its children.
-ucfg	Unconfigures, but does not undefine the specified device. The device's state will be moved from `Available` to `Defined`. To move the device back to `Available` state run `cfgdev -dev Name` command.
-f	Forcefully removes or unconfigures the device even if it is in use. Note: This option can be used only with the physical volumes in cluster environment, where the device is not used in the active cluster of the system.

Exit Status

See Exit status for Virtual I/O Server commands.

Examples

To unconfigure the cd0 CD-ROM device, type the command as follows:
```
rmdev  -dev cd0
```
To unconfigure the SCSI adapter scsi1 and all of its children, type the command as follows:
```
 rmdev  -recursive -dev scsi1
```
To unconfigure just the children of the SCSI adapter scsi1, but not the adapter itself, type the command as follows:
```
rmdev  -pdev scsi1
```
To unconfigure the children of PCI bus pci1 and all other devices under them, type the command as follows:
```
rmdev  -pdev pci1
```
To remove the suspended virtual adapter and all the children, type the command as follows:
```
rmdev -dev susadpt0 -recursive
```
The system displays the following output:
```
vtscsi0            deleted
client_rootvg      deleted
susadpt0           deleted
```

Note: If you attempt to remove the interface that is used for cluster communication by typing the command as follows:

rmdev -dev en0

The system displays the following error message with return code 78:

The requested operation is not allowed because partition is a member of "test_cluster" cluster.
Interface being used is "en0" ("inet" Family) for cluster communication.

Related Information

The cfgdev command, the chdev command, the lsdev command, the mkvdev command, and the rmdev command.

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Last updated: Wed, June 03, 2015