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Process of Determining Policy Definition Data Through Correlation of Resource Property Documents

IP.com Disclosure Number: IPCOM000119070D
Original Publication Date: 2005-Apr-01
Included in the Prior Art Database: 2005-Apr-01
Document File: 4 page(s) / 64K

Publishing Venue

IBM

Abstract

Process of determining policy definition data through correlation of resource property documents. Merge of Managed Resource Data for Policy-based Management.

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Process of Determining Policy Definition Data Through Correlation of Resource Property Documents

The problem is the gathering of knowledge surrounding a Managed Resource, such that relevant policies can be defined. The data that is required to define policies may be scattered among disparate documents. Examples of these disparate documents include the WSDL (Web Services Description Language), WS-RP (Web Services - Resource Properties), and MRP (Managed Resource Prototype).

Also, one Autonomic Manager can manage many Managed Resources. Each Managed Resource has a WSDL, WS-RP, and MRP document associated with it (these documents are described shortly), that expose properties and operations to the Autonomic Manager. However, the Autonomic Manager must merge the various WSDL, WS-RP, and MRP such that there is a consistent way to manage all Managed Resources, via policies. Today, this is a manual process, where the common attributes/properties and operations are merged into a single WSDL, WS-RP, and MRP document. Once this merge has occurred, then policies can be constructed to provide guidance to all of an Autonomic Manager's resources.

Relevant to the definition of policies, the necessary data includes the following: 1) properties of the managed resource, including which properties provide stateful information, and which properties can be changed on the managed resource, 2) operations that can be performed on the resource, 3) what decisions does this managed resource need policy guidance for.

A brief explanation of these documents:

WSDL (Web Services Description Language) is an XML format for describing network services as a set of endpoints operating on messages containing either document-oriented or procedure-oriented information.

WS-RP (Web Services - Resource Properties) exposes the properties of a managed resource, which collectively describes its state, metatdata, and manageability interfaces. This document enhances the information in the WSDL.

MRP (Managed Resource Prototype) is an XML document that describes a class of managed resources and extends the manageability interface of the managed resource as defined in the WSDL document.

The correlated information in these documents is important in order to construct meaningful and relevant policies that guide the behavior of the resource. Also, when policies are evaluated at run-time, the decision inputs, decision outputs, and the name of the decision itself, can be validated against this correlated information.

DETAIL DESCRIPTION to correlate resource property documents:

Resource properties give us specific information about a Managed Resource (MR), as

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well as information on how to obtain this information. Retreival of the information values is accomplished by including a GetResourceProperty operation within the portType associated with the group of resource properties in question.

The information about resource properties available on an MR is correlated as such: T...