1Copyright © 2008, Printer Working Group. All rights reserved. PWG WIMS-CIM WG Status Rick Landau,...

1Copyright © 2008, Printer Working Group. All rights reserved.

PWG WIMS-CIM WG Status

Rick Landau, DellPWG F2F MeetingPhoenix,AZ16-18 April 2008

2Copyright © 2008, Printer Working Group. All rights reserved.

Done with the Bulk of Editing

• CRs adopted: 36• All changes will be in CIM Schema v2.19• Current state updated in the wiki

http://pwg-wiki.wikispaces.com/DMTF+CIM+Core+Schema+Change+Requests

3Copyright © 2008, Printer Working Group. All rights reserved.

Final Model of Printer Device

Printer

PrinterSettingData(IsCurrent = true)

RecordLog(See Record Log Profile)

UseOfLog

PrinterComponent

PrintInputTray

PrintOutputTray

PrintInterlock

PrintMarker

PrintSupply

PrintChannel

PrintInterpreter

LogManagesRecord

AssociatedPrintSupply

ElementSettingData

1

1

1..*

1..*

1..*

1..*

1..*

1

*

PrintAlertRecord(See Record Log Profile)

1 1

1..*

1

Printer Components

PrintMediaPath1..*

*

AssociatedPrintInterpreter

*

0..2

1

PrintFinisher

ConcreteComponent

AssociatedPrintSupply

1

*

*

*

Dependency

Dependency

**

*

*

*

v14 20071210 RBL

not done,may never be

4Copyright © 2008, Printer Working Group. All rights reserved.

Look at Final Classes

• Major surgery on CIM_Printer• Properties removed

• PaperSizesSupported, CurrentPaperType, CurrentLanguage, CurrentMimeType, Capabilities, CapabilityDescription, DefaultCapabilities, CurrentCapabilities, HorizontalResolution, VerticalResolution, MarkingTechnology

• Properties added• CurrentOperator, ServicePerson, SerialNumber,

CriticalAlerts, AllAlerts, ConsoleDisabled, ConsoleNaturalLanguage, ConsoleDisplayBufferText

• Properties to be removed later• MaxCopies, DefaultCopies, MaxNumberUp,

DefaultNumberUp, MaxSizeSupported • Descriptions improved

• Printer (class), PrinterStatus, PrinterDetectedErrorState

5Copyright © 2008, Printer Working Group. All rights reserved.

Minor Repairs on other Classes

• PrintInputTray• PrintOutputTray• PrintFinisher• PrintSupply• PrinterElement• PrinterComponent

6Copyright © 2008, Printer Working Group. All rights reserved.

Status of Printer Classes

• All the new classes are Experimental• In the CIM Schema v2.nn Experimental branch• Experimental classes may change without notice in

incompatible ways, though this is rare, so implementers beware

• E.g., we just changed a few property names

• Want classes to go final as quickly as possible• Need TWO claims of implementation to promote

the classes to the v2.nn Final branch• One prototype in the works soon• NEED ONE MORE IMPLEMENTATION

7Copyright © 2008, Printer Working Group. All rights reserved.

Prototyping

• Goal: Build a CIM Provider that populates CIM properties for a network printer

• Method: Proxy from SNMP to CIM• Should be able to find content for all properties

if the network printer has a good PrinterMIB implementation

• Plus MIB-2 and HostResources, of course

• We think we transcribed the semantics correctly. This is the test.

8Copyright © 2008, Printer Working Group. All rights reserved.

CIM Server Model

CIMOM

CIM Provider

Instrumentation

Hardware

Management application

logical mapping from hardware modelto CIM data model

physical mapping of hardware

CIM Object Manager, aggregation layer

access protocol(s), e.g., WS-Management"CIM Server"

management client

9Copyright © 2008, Printer Working Group. All rights reserved.

Structure of Proxy Provider - 1

Network Printer

SNMP Printer MIB

SNMP access

Actions

Dictionary

Parse Request Generate XML

Magic Cloud

CIMOM

CIM Browser Proto Mgt Ap

some computer on the network

10Copyright © 2008, Printer Working Group. All rights reserved.

Structure of Proxy Provider - 2

Network Printer

SNMP Printer MIB

SNMP access

Actions

Dictionary

Parse Request Generate XML

Magic Cloud

CIMOM

CIM Browser Proto Mgt Ap

Dell Secret Sauce

Windows WMI

DCOM WS-Man

XML

maybe publishablealgorithm

Perl/Python

snmpget CLI

11Copyright © 2008, Printer Working Group. All rights reserved.

What Can be Made Public?

• Maybe translation algorithms from SNMP vars to CIM properties

• Maybe the XML format output from this translation

• Both guaranteed to be not pretty but possibly instructive

12Copyright © 2008, Printer Working Group. All rights reserved.

How to Test?

• CIM Browser application, free from MS • WMI Tools kit on MSDN

• WMI CIM Studio• WMI Object Browser

• Shows classes and instances in WMI• Examine root Printer instance, associations, and

associated instances• May be able to script WMI CLI tools for ease of testing.

13Copyright © 2008, Printer Working Group. All rights reserved.

An Opportunity for Fame and Fortune!

• Someone want to write a WS-Man ap?• Be the first kid on your block to manage a printer

through a modern web service!• Proof point requires only a simple application

• Enumerate all instances of all the related classes and print the returned XML

• Can't be more than a couple hundred lines of VB or Perl on top of WinRM CLI or .NET

14Copyright © 2008, Printer Working Group. All rights reserved.

Next CIM-Related Activities

• Add statistics class(es) for counters derived from the Counter MIB and abstract spec

15Copyright © 2008, Printer Working Group. All rights reserved.

Future

• Write a Network Printer Profile• Network printer is a network computer system that

includes a Printer device• Structured as an instance of CIM_ComputerSystem plus

a pile of associated devices and services• Specify what classes and properties are mandatory?• Specify what other profiles must or should be

implemented?

• Later: • Define CIM device alerts for printers• Update the PrintService and PrintJob classes based on

IPP and Semantic Model