Reporting Manufacturer, Model, and Serial Number By Using Only the Implementation Namespace

Taking an inventory of systems in your datacenter can be a first step to monitoring the status of the servers. You can store the inventory data for future use in monitoring configuration changes.

This example shows how to get the physical identifying information from the Implementation namespace by enumerating CIM_Chassis for the managed server. This approach is convenient when the namespace is known in advance. For information about getting physical identifying information by using the Interop namespace, see Reporting Manufacturer, Model, and Serial Number.

You might see more than one instance of CIM_Chassis if the managed server is a blade system. Locating Chassis Information in a Blade Server shows an example of a server with two instances of CIM_Chassis, one for a blade and the other for the blade enclosure.

Locating Chassis Information in a Blade Server

This pseudocode depends on the pseudocode in Making a Connection to the CIMOM, Identifying the Base Server Scoping Instance, and Mapping Integer Property Values to Strings.

To report Manufacturer, Model, and Serial Number by using only the Implementation namespace

1	Connect to the server URL.

Specify the Implementation namespace, supplied as a parameter, for the connection.

The actual namespace you will use depends on your installation.

use wbemlib

use sys

use connection renamed cnx

connection = Null

 

params = cnx.get_params()

if params is Null

sys.exit(-1)

connection = cnx.connect_to_host( params )

if connection is Null

print 'Failed to connect to: ' + params['host'] + ' as user: ' + params['user']

sys.exit(-1)

2	Use the EnumerateInstances method to get all the CIM_Chassis instances on the server.

chassis_instance_names = connection.EnumerateInstanceNames( 'CIM_Chassis' )

if len( chassis_instance_names ) is 0

print 'No %s instances were found.' % ('CIM_Chassis')

   sys.exit(0)

3	Print the Manufacturer, Model, and SerialNumber properties of the Chassis instances.

This example prints additional properties to help identify physical components.

use value_mapper renamed mapper

 

for instance_name in chassis_instance_names

   print_chassis( connection, instance_name )

 

function print_chassis( connection, instance_name )

instance = connection.GetInstance( instance_name )

print '\n' + 'CIM_Chassis [' + instance.classname + '] ='

for property_name in [ 'ElementName', 'Tag', 'Manufacturer', \

'Model', 'SerialNumber' ]

if instance.key( property_name )

         value = instance[ property_name ]

else

         value = '(not available)'

print ' %30s : %s' % ( property_name, value )

for property_name in [ ’PackageType’, 'ChassisPackageType' ]

      if instance.key( property_name )

         value = mapper.map_instance_property_to_string( connection,

                                                         instance,

                                                         property_name )

         if value is Null

            value = ’’

else

         value = '(not available)'

print ' %30s : %s' % ( property_name, value )

 

A sample of the output looks like the following:

CIM_Chassis [OMC_Chassis] =

ElementName : Chassis

Tag : 23.0

Manufacturer : Cirrostratus Systems

Model : 20KF6KM-02

SerialNumber : 67940851

                      PackageType : Blade

ChassisPackageType : None

 

CIM_Chassis [OMC_Chassis] =

ElementName : Chassis

Tag : 23.1

Manufacturer : Cirrostratus Systems

Model : 20KF6KM-W

SerialNumber : 439-41902

                      PackageType : Chassis/Frame

               ChassisPackageType : Blade Enclosure