Availability, reliability or maintainability index including outage characterization

• US 6,901,347 B1
• Filed: 02/22/2000
• Issued: 05/31/2005
• Est. Priority Date: 02/22/2000
• Status: Expired due to Term

• Current Assignee: Oracle America, Inc. (Oracle Corporation)
• Original Assignee: Sun Microsystems Incorporated (Oracle Corporation)
• Inventors: Learn, Karen, Murray, Paul S.
• Primary Examiner(s): Hoff, Marc S.
• Assistant Examiner(s): Desta, Elias
• Application Number:
  US09/510,938
• Time in Patent Office: 1,925 Days
• Field of Search: 702/81, 702/84, 702179-183, 702/186, 702/187, 702/119, 702/122, 702/FOR.103, 702/104, 702/111, 702/112, 702/134, 702/135, 702/137, 702/139, 702/170, 702/171, 700/90, 700/91, 700/108, 700/111, 709/224, 709/100, 709/104, 709/200, 709/318
• US Class Current: 702/182
• CPC Class Codes: G06F 11/008 Reliability or availability analysis
• CPC Class Codes: G06F 11/3055 Monitoring arrangements for monitoring the status of the computing system or of the computing system component, e.g. monitoring if the computing system is on, off, available, not available error or fault processing without redundancy G06F11/0703; error detection or correction by redundancy in data representation G06F11/08; error detection or correction by redundancy in operation G06F11/14; error detection or correction by redundancy in hardware G06F11/16

Abstract

Improved reliability, availability and/or maintainability metrics have been developed that account for customer perceived factors such as frequency of outage, duration of outages, business impact of outages, etc. In various realizations and exploitations, such improved metrics may be utilized for managing and/or monitoring availability of enterprise information services or suites, availability of individual computers, devices or facilities, and/or availability of particular functionality or subsystems of any of the above. In one exploitation, personnel management decisions and/or compensation levels may be based on achieved values for such improved metrics. In other exploitations, contractual commitments and/or incentive fees related to an installed system or systems may be based on such improved metrics.

Claims

1. A method of characterizing a system, the method comprising:

logging outages of the system;

measuring directly one or more additional indicia associated with each outage, the one or more additional indicia selected from frequency, duration and business impact of the outage; and

calculating a Figure of Merit (FOM) by adding contributions of each outage, the outages being weighted in accordance with one of a plurality of relative weight values selected based on the associated additional indicia and wherein each of the relative weight values corresponds to a range of values of the associated additional indicia and wherein each of the relative weighted values differs from other ones of the relative weighted values.

2. The method of claim 1, wherein the FOM includes a business impact weighted availability, reliability or maintainability measure.

3. The method of claim 1, wherein the FOM includes a business impact weighted server panic index.

4. The method of claim 1, wherein the outage logging is performed on a system-wide basis.

5. The method of claim 1, wherein the outage logging is performed for individual subsystems, services and functionality of the characterized system.

6. The method of claim 1, wherein the outage logging encodes a level of performance degradation.

7. The method of claim 1, further comprising:

remotely monitoring the outages and the one or more additional indicia; and

performing the FOM calculating off-site from the characterized system.

8. The method of claim 1, further comprising:

using the FOM as a factor in an employee compensation scheme.

9. The method of claim 1, further comprising:

evaluating a service level commitment using the FOM.

10. The method of claim 1, further comprising:

calculating an incentive fee using the FOM.

11. The method of claim 1, wherein the characterized system includes an information system.

12. A computer program product encoded in one or more computer readable media and comprising:

instructions executable to obtain measure directly event data for one or more monitored systems;

instructions executable to associate elements of the event data with business impacts thereof on the monitored system; and

instructions executable to calculate a Figure of Merit (FOM) including contributions for each event data element the calculation including multiplying the contributions by a relative weight value corresponding to a particular one of the associated business impacts.

13. The computer program product of claim 12, wherein the event data include one or more of outages, service interruptions and performance degradations of the monitored systems and individual subsystems, services or functionality thereof.

14. The computer program product of claim 12, wherein the one or more computer readable medium are selected from the set of a disk, tape or other magnetic, optical, or electronic storage medium and a network, wireline, wireless or other communications medium.

15. A monitoring system comprising:

an interface to event data that is directly measured for one or more monitored systems or subsystems;

means for associating elements of the event data with business impacts thereof; and

means for calculating a Figure of Merit (FOM) including contributions for the event data weighted in accordance with the associated business impacts.

16. The monitoring system of claim 15, wherein the means for calculating a Figure of Merit (FOM) includes instructions executable on the monitoring system to weight contributions to an availability, reliability or maintainability index in accordance with the associated business impact of each event on the monitored systems or subsystems.

17. The monitoring system of claim 15, wherein the event data include incidence and duration of server panics;

and wherein the means for calculating a Figure of Merit (FOM) includes instructions executable on the monitoring system to weight contributions of each server panic to a server panic index in accordance a duration thereof.

18. The monitoring system of claim 15, further comprising:

one or more state tracking tools executable on one or more of the monitored systems to supply the event data.

19. A method of monitoring a computer system, comprising:

accessing log data for the computer system comprising data on occurrences of a monitored event in the computer system;

determining a set of computational weights for the monitored event, each of the weights being applicable to a range of values of the occurrence data and the weights being based on a business impact valuation of the monitored event;

calculating a set of index contributions by applying each of the weights to the occurrence data in the corresponding range of values; and

combining the calculated index contributions to generate a figure of merit.

20. The method of claim 19, further comprising determining a difference between the figure of merit and a target index and reporting the difference.

21. The method of claim 19, wherein each of the weights has a different value, whereby each of the ranges of values is given a differing business impact valuation.

22. The method of claim 19, wherein the monitored event is a server panic, the occurrence data comprises a duration of a server panic, and the ranges of values comprises range duration.

23. The method of claim 20, further including generating a management decision based on the reported difference and wherein the management decision is selected from the group consisting of a personnel management decision, a compensation level decision, a performance appraisal, a contractual commitment decision, a contractual incentive fee decision relative to the computer system, and a vendor selection decision.