Multi-Wan provides the ability to have multiple internet connections into a single site. If one internet connection goes down you simply switch to another giving a continuous connection. Again, cost is the consideration. Doubling, or even trebling, the cost of your internet connection is probably not worth it for the majority of businesses with a reliable internet connection as downtime would be minimal anyway. Building redundancy into your IT solution is an effective way of minimising downtime, and enables fast, effective disaster recovery.
The benefits need to be balanced with the level of risk and the often-considerable costs however. Understanding the businesses budgets, needs and risks is key to providing the right levels of redundancy in a cost-effective way. As our clients outsourced, but fully integrated, IT partner we work hard to understand our clients businesses and design solutions that meet their needs.
So, give us a call on or fill in the contact form for a free informal chat about your IT systems and how we can build redundancy into them.
In the oil and gas energy sector, redundancy is of paramount importance in the reliability of equipments or machine components and safety of personnel on board because duplication of critical components or functions of a system with the intention that production continuous or a un-interruption of running the plant is usually planned for during the design stage.
For example, crude oil export pipelines usually have redundant pumps and isolation valves to serve in the event that there is failure of the duty pump. Also, turbine and generators that supplies power to the oil and gas facilities usually have stand-by turbine or generator in the case of any failure incident to avoid any power interruption that might affect the running of the plant. The answer is yes. It is an important way to improve the safety of reliability of distributed control system by developing redundancy technology, especially for oil and gas industry.
For instance, in the course of oil and gas exploitation, the redundancy configuration of DCS could enhance its reliability and reduce probability of system failure. In terms of redundancy technology, its principle is to add redundant equipment so as to ensure the system works reliably. According to the structure, redundant system could be divided into static system, dynamic system and voting system.
Based on the position in the system, it could be categorized to element level, component level and system level. As per the extent of redundancy, it could be differentiated as , and 1:n. For sure, redundancy design will increase the complexity of system and more investment will be put into the system with redundant configuration.
So it is a matter of trade-offs. I agree to some of the comments made by Olusola. Redundancy not only increases complexity of a system but also induce complacency among operators as this lead to a belief that the system is fault-tolerant. It should be used in conjunction with other methods to improve the safety and reliability of any system.
Then why is it the most commom approach ro safety management?. I think maybe its because redundancy is more closely associated to reliability.
Redundancy is expected to reduce the risk of failure thus improving the reliability of any system. One other reason maybe is it is easy to measure and verify unlike inherent safety which is hard to measure. Redundancy is a quite important approach to control risk. Based on what we have learned in this course, Redundancy refers to repeat some of the configuration system components, when the system is fault, Redundant configuration components intervention and replace the fault components to work, thus increase the system's reliability.
In oil and gas industry, there are many applications of redundancy. For instance, the company often build another generation for redundancy in case of the main generation fault. When the main generation faces some problems, the redundancy generation will be stimulated by the signal and start to work to provide the electric for the relevant equipment.
Compared with no redundancy system, this mean really reduces the potential risk in oil and gas industry. Even though, it will cost more money to set up, the function to ensure the safety and reliability of the system is worth of doing. One think occur to my mind was is it useful of having the same equipment for redundancy? In my opinion, certain equipment for example pump A1 when put into a redundancy with the same pump from the same manufacturer will leave it at risk of the same defects.
For instance, the compressor onboard LNG vessel from a manufacturer tend to have the same problem when we carried out inspection for repair and maintenance. I did create a report to top management to consider a total different redundancy structure equipments and systems to its improve reliability without jeopardizing the the system performance. For example, the DCS that I was trained with will have 2 line of base -TX ethernet cables, 1 for the primary system and one is for redundancy system.
In my undisclosed company report, I found that if the cable to fail, they usually have the same root problem. Therefore, I think it is important to consider a different redundancies systems and equipments to give us better reliability. Skip to main content. Search form Search. Secondary menu recent posts user list about contact Main menu research education mechanician opinion software industry conference job video.
Create new account Request new password. Navigation Search iMechanica. Recent blog posts Advanced Materials and Manufacturing group at Cornell seeking PhD applicants Fully-funded openings for PhD students in Mechanical Engineering at the University of Kentucky Pune unnecessarily has too many private universities, don't you think so?
Writing a paper Writing a proposal in situ Mechanics tensor tensor and its invariants. You are here Home » Blogs » Elvis. Osung's blog. Safety Engineering and Risk Management Debate Osung's blog Log in or register to post comments reads.
Permalink Submitted by Toby Stephen on Mon, Permalink Submitted by Trevor Strawbridge on Mon, Far from it, but I do encourage best practice design that would result in fit for purpose assets, and not adding members just as " nice to have's" Regards Trevor.
Permalink Submitted by Mostafa Tantawi on Mon, Mostafa Tantawi Masters Of Subsea Engineering, University of Aberdeen Redundancy is a common practice approach in Subsea systems, all subsea manufacturing companies are being requested by their clients to include redundant items in their systems, as an example of this the Subsea umbilical which is responsible of controlling the subsea systems actuators, valves, PTT is manufactured in a redundant manner, so we find two high pressure lines, two low pressure lines, two electric supply lines.
Regards, John Bosco Aliganyira Msc. Oil and Gas Engineering References: 1. Permalink Submitted by Menelaos Michelakis on Tue, Answer to : Elvis. Osung, adding comments : Toby Stephen, John Bosco et al. Ref : A. Mather, Offshore engineering - An introduction second edition. Redundancy is also now frequently misapplied in that too many assumptions could be made during the design stage With the current trend of less funding with increased pressure to deliver results, the focus should be on designing systems which help meet plant operational needs such that redundancy would become a luxury that can be done without as much as possible.
Ikenna Ekekwe. Permalink Submitted by Joan. Isichei on Sat, Regards, Soo Chyi, Lee. Permalink Submitted by Soseleye F. Ideriah on Wed, However, increasing the number of components in a mechanical system can also increase the complexity of the system as well as the complexity of associated problems as outlined below: Common-mode error Adding extra components can create a catastrophic scenario where one single fault may cause failure of all components.
The problem of overcompensation Redundancy can be counterproductive when adding extra components to a system causes system operators to dangerously increase system production beyond design limits. References 1 Scott D. Permalink Submitted by adavis on Wed, Permalink Submitted by Foivos Theofilo Yakubu Abubakar. Kareem R.
Permalink Submitted by michael saiki on Sat, Permalink Submitted by Elvis. Osung on Sun, Permalink Submitted by Deinyefa S. Ebikeme on Sun, Therefore, redundancy definitely will increase reliability. Permalink Submitted by Igwe Veronica I Permalink Submitted by Agba A. Imbuo on Wed, Permalink Submitted by Andrew Allan on Fri, Permalink Submitted by Neil Fraser Jam Permalink Submitted by Andrew Strachan on Sun, Bassey, Kufre Peter M.
Permalink Submitted by Oluwasegun Onasanya on Thu, Permalink Submitted by farman oladi on Sat, Permalink Submitted by Ryan Grekowicz on Sat, In Reliability Engineering for Electronic Design , Norman Fuqua gives a great introduction to the concept of redundancy. Websters defines redundancy as needless repetition. In reliability engineering, however, redundancy is defined as the existence of more than one means for accomplishing a given task.
Thus all of these means must fail before there is a system failure. Under certain circumstance during system design, it may become necessary to consider the use of redundancy to reduce the probability of system failure—to enhance systems reliability—by providing more than one functional path or operating element in areas that are critically important to system success.
The use of redundancy is not a panacea to solve all reliability problems, nor is it a substitute for good initial design. By its very nature, redundancy implies increased complexity, increased weight and space, increased power consumption, and usually a more complicated system …. Charlie Munger Of course you prefer a business that will prosper even if it is not managed well.
We are not looking for mismanagement; we like the capacity to withstand it if we stumble into it…. Warren Buffett uses the concept of margin of safety for investing and insurance: We insist on a margin of safety in our purchase price.
We believe this margin-of-safety principle, so strongly emphasized by Ben Graham, to be the cornerstone of investment success. The pitfalls of this business mandate an operating principle that too often is ignored: Though certain long-tail lines may prove profitable at combined ratios of or , insurers will invariably find it unprofitable to price using those ratios as targets.
Instead, prices must provide a healthy margin of safety against the societal trends that are forever springing expensive surprises on the insurance industry. Confucius comments :. The superior man, when resting in safety, does not forget that danger may come. When in a state of security he does not forget the possibility of ruin. When all is orderly, he does not forget that disorder may come. Thus his person is not endangered, and his States and all their clans are preserved.
Warren Buffett talked about redundancy from a business perspective at the shareholder meeting :. By Robert I. Williams, PE September 6, Revere Control Systems, Inc. JMP Solutions. Spec Engineering.
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