Q 688. The recent world wide outage of Microsoft highlighted the dangers of a Single Point of Failure. What is Single Point of Failure? How does one identify such failure points and mitigate such risks? Provide examples to support your answer. Note for website visitors - This platform hosts two weekly questions, one on Tuesday and the other on Friday. All previous questions can be found here: https://www.benchmarksixsigma.com/forum/lean-six-sigma-business-excellence-questions/. To participate in the current question, please visit the forum homepage at https://www.benchmarksixsigma.com/forum/. The question will be open until Tuesday or Friday at 5 PM Indian Standard Time, depending on the launch day. Responses will not be visible until they are reviewed, and only non-plagiarised answers with less than 5-10% plagiarism will be approved. If you are unsure about plagiarism, please check your answer using a plagiarism checker tool such as https://smallseotools.com/plagiarism-checker/ before submitting. All correct answers shall be published, and the top-rated answer will be displayed first. The author will receive an honorable mention in our Business Excellence dictionary at https://www.benchmarksixsigma.com/forum/business-excellence-dictionary-glossary/ along with the related term. Some people seem to be using AI platforms to find forum answers. This is a risky approach as AI responses are error prone as our questions are application-oriented (they are never straightforward). Have a look at this funny example - https://www.benchmarksixsigma.com/forum/topic/39458-using-ai-to-respond-to-forum-questions/ We also use an AI content detector at https://crossplag.com/ai-content-detector/. Only answers with less than 15-20% AI-generated content will be approved.

Single Point of failure What it is (SPOF): - Any Person, Facility, Equipment, Software or any other resource for which no redundancy is available and if that goes down, the process or system dependent on that resource will stop totally. In such cases, the daily function of that process or system is hampered. Method to identification of SPOF Common sense can be used to find such failure modes. Otherwise, detailed risk assessment can be performed to do so. Risk assessment tools like PFMEA may help to find such all-failure points in any process. During the design phase itself DFMEA can be done. HIRA can be performed to find operation related failure mode. Hazop is again a widely used tool in risk assessment in process industry. With all these tools most of the SPOF (Single point of failure) can be found. Methods to Mitigate such risks Found all SPOFs must be classified in Severity, Detection and Occurrence to priorities to implement Mitigation plan. For the mitigation of such failure below action can be taken Create a redundancy plan in case of such failure. Support from an internal or external team can be taken for this. Create a buffer of such part. Training in hiring of people must be done if SPOF is a person, whose skill is mandated to run day to day operation. Flexible layout of the system can be done to eliminate the point so in case of failure other available systems can be used. Example: - Taking a case of manufacturing Out of all machines some critical machine or part of machine are available 1 or 2 only and if that fails whole manufacturing stops. Malfunction of Data base system can stop all machine internal working. Some specific tasks can be done by X person because he is having only training of that task, or one else is interested in same. Air (Utility) is critical for some Manufactuing operation, failure of which can stop the plant. To mitigate the same Critical machine components must be procured and stored in inventory. An additional standby server should be available in case of any issues faced. Hiring or training existing staff must be done critical task. Standby Air compressor can be installed to mitigate such failure of Air pressure. Put system such that before occurrence of such failure, it can be found if cannot be implemented.

Message added by Mayank Gupta, July 26, 20241 yr

Single Point of Failure is a critical part of the system which if fails could result in the entire system to stop working. It could be a hardware, software or even a person and it does not have any redundancy in the system.

An application-oriented question on the topic along with responses can be seen below. The best answer was provided by Siddheshwar Jangid on 24th Jul 2024. Well done!

Single Point of Failure

Followers

July 23, 20241 yr

Q 688. The recent world wide outage of Microsoft highlighted the dangers of a Single Point of Failure. What is Single Point of Failure? How does one identify such failure points and mitigate such risks? Provide examples to support your answer.

Note for website visitors -

This platform hosts two weekly questions, one on Tuesday and the other on Friday.
All previous questions can be found here: https://www.benchmarksixsigma.com/forum/lean-six-sigma-business-excellence-questions/.
To participate in the current question, please visit the forum homepage at https://www.benchmarksixsigma.com/forum/.
The question will be open until Tuesday or Friday at 5 PM Indian Standard Time, depending on the launch day.
Responses will not be visible until they are reviewed, and only non-plagiarised answers with less than 5-10% plagiarism will be approved.
If you are unsure about plagiarism, please check your answer using a plagiarism checker tool such as https://smallseotools.com/plagiarism-checker/ before submitting.
All correct answers shall be published, and the top-rated answer will be displayed first. The author will receive an honorable mention in our Business Excellence dictionary at https://www.benchmarksixsigma.com/forum/business-excellence-dictionary-glossary/ along with the related term.
Some people seem to be using AI platforms to find forum answers. This is a risky approach as AI responses are error prone as our questions are application-oriented (they are never straightforward). Have a look at this funny example - https://www.benchmarksixsigma.com/forum/topic/39458-using-ai-to-respond-to-forum-questions/
We also use an AI content detector at https://crossplag.com/ai-content-detector/. Only answers with less than 15-20% AI-generated content will be approved.

Solved by SIDDHESHWAR JANGID

July 24, 20241 yr

Go to solution

July 24, 20241 yr

Solution

Single Point of failure

What it is (SPOF): - Any Person, Facility, Equipment, Software or any other resource for which no redundancy is available and if that goes down, the process or system dependent on that resource will stop totally. In such cases, the daily function of that process or system is hampered.

Method to identification of SPOF

Common sense can be used to find such failure modes. Otherwise, detailed risk assessment can be performed to do so.

Risk assessment tools like PFMEA may help to find such all-failure points in any process.
During the design phase itself DFMEA can be done.
HIRA can be performed to find operation related failure mode.
Hazop is again a widely used tool in risk assessment in process industry.

With all these tools most of the SPOF (Single point of failure) can be found.

Methods to Mitigate such risks

Found all SPOFs must be classified in Severity, Detection and Occurrence to priorities to implement Mitigation plan.

For the mitigation of such failure below action can be taken

Create a redundancy plan in case of such failure. Support from an internal or external team can be taken for this.
Create a buffer of such part.
Training in hiring of people must be done if SPOF is a person, whose skill is mandated to run day to day operation.
Flexible layout of the system can be done to eliminate the point so in case of failure other available systems can be used.

Example: -

Taking a case of manufacturing

Out of all machines some critical machine or part of machine are available 1 or 2 only and if that fails whole manufacturing stops.
Malfunction of Data base system can stop all machine internal working.
Some specific tasks can be done by X person because he is having only training of that task, or one else is interested in same.
Air (Utility) is critical for some Manufactuing operation, failure of which can stop the plant.

To mitigate the same

Critical machine components must be procured and stored in inventory.
An additional standby server should be available in case of any issues faced.
Hiring or training existing staff must be done critical task.
Standby Air compressor can be installed to mitigate such failure of Air pressure.
Put system such that before occurrence of such failure, it can be found if cannot be implemented.

image.png.986ac677e64d6b142a15d86220b01c73.png

1 yr1 yr Rohit Gandhi locked this topic

July 26, 20241 yr

Best answer to this question has been provided by Siddheshwar. Well done.

P.S. There were other answers also that either failed the AI generated content or the plagiarism checks. Hence, a request t all respondents, please be careful when you post your answers. The note below the question lists the tools that we use for checking. You are encouraged to check your answer using the same tools before you submit.