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Deleting Classes, Devices, and Paths [ System Administrator's Quick Reference Guide ] MPE/iX 5.0 Documentation


System Administrator's Quick Reference Guide

Deleting Classes, Devices, and Paths 

The I/O configurator commands DCLASS, DDEV, DPATH, and DVOL remove
objects from the system configuration.

Deleting Classes 

The DCLASS command deletes class name(s) from the configuration.  DCLASS
has the following parameter:

     DCLASS (DC)     [CLASS      =] classname 

To delete a class name or names, enter DCLASS and the class name:

     io>DCLASS classname 

Specify multiple classes by enclosing them with parentheses and
separating each class with commas:

     io>DCLASS (classname1,classname2) 

Deleting Devices 

The DDEV command deletes the devices which meet the specified criteria.
You must specify a parameter or SYSGEN issues a warning.  SYSGEN does not
permit the system disk or system console to be deleted.  Those devices
must always be present in the specified locations (LDEVs 1 and 20
respectively).  DDEV has the following parameters:

     DDEV (DD)  [ [LDEV  =]  device range ]
                [ [ID    =]  product id   ]
                [ [TYPE  =]  USER ] [ device type  ]
                [ [CLASS =]  classname    ]

Enter any one of the parameters, depending on what you want to delete.
For example:

     io>DDEV 10/13        ** Delete devices 10-13. **
     io>DDEV (12/13,22)   ** Delete devices 12-13, and 22. **

     io>DDEV ID=HP2932A   ** Keyword parameter **

     io>DDEV,,,FASTLP     ** Positional Parameter **

Deleting Paths 

The DPATH command (abbreviated DP) deletes an I/O path and all I/O paths
below it from the configuration.  If an I/O path is currently used by a
configured device, it is not deleted, and SYSGEN issues a warning.

If there are I/O paths below the specified one, SYSGEN asks whether or
not they may be deleted as well.  If you answer NO, SYSGEN does not
delete the specified I/O path.

DPATH has the following parameter:

     DPATH (DP)     [PATH     =] device path 

To delete a configured path with no associated devices, enter DPATH and
the path:

     io>DPATH 4.2  ** Series 925/935 **

     or

     io>DPATH 2/8.2  ** Series 950/955 format **

This path and subsequent paths are deleted automatically as long as there
are no associated devices.

If the path has an associated device, SYSGEN issues an error message:

     io>DP 4.2 

     **error**iopath is currently referenced by a configured ldev, it cannot be deleted

Deleting Volumes 

The DVOL command is reserved for use by Hewlett Packard Service Personnel
only.



MPE/iX 5.0 Documentation