Reliability And Availability Evaluation Of A System Switched

The risk-management plan then starts by identifying each of these sources, their magnitude, their relation to the various design stages, and their possible effects on cost, schedule, quality, and performance. The next step is to look for modifications or alternatives that would permit risk reduction. The thoughtful selection of computer language or operating system may reduce some of the integration risks. If management decides to develop a new software package, contingency plans that cut expenses and development time at the cost of lower performance should be prepared. These plans are used in case the undesired event takes place. By preparing a contingency plan in advance, time is

Machine 1 had a reliability of 84%, Machine 2’s reliability was 91%, and Machine 3 had a reliability of 99%. The first possible setup, and ultimately the recommended setup, was to backup Machine 1. This led to an overall reliability of 84%. Backing up Machine 2 only gave a reliability of 82%. Backing up Machine 3 only gave a reliability of 76%. Therefore the recommendation is to backup Machine 1 and increase the reliability to 88%.

The system(s) are timely and extremely reliable, with no significant amount or frequency of system downtime and should enhance the flow of information to facilitate user and patient satisfaction.

Complete redundancy and uptime in applications are important in the hotel business, allowing reservations to be made at any time. The current operation system at Outrigger is Stellex 2.0, which connects everything from telephone switches, to call accounting,

Reliability refers to system live time, that is, system is running efficiently most of the time. Availability is the probability that the system is continuously available (usable or accessible) during a time interval.

The reliability of a system can be improved through the introduction of redundancy in the system. Some of the examples of redundancy in the operation are as below:

After the outage occurs, I would update the system. Next, outline the workflow that the staff will use to continue providing and documenting

Information will only have value if customers can access it at the right times. Availability can be affected by system errors, and malicious attacks as well as infrastructure problems. Availability is ensured by maintaining hardware as well as repairing hardware immediately when need arise. A correct functioning operating system should also be maintained in the environment free of software conflicts. Adequate communication bandwidth should also be addressed as well as preventing bottlenecks from occurrence.

A goal of redundant topologies is to eliminate network down time caused by a single point of failure. All networks need redundancy for enhanced reliability. Network reliability is achieved through reliable equipment and network designs that are tolerant to failures and faults. Networks should be designed to reconverge rapidly so that the fault is bypassed.

Availability keeps data and resources available for authorized use, especially during emergencies or disasters. This policy will address common challenges to availability. Denial of Service this is due to intentional attacks or because of undiscovered flaws in implementation. The policy will address loss of information system capabilities because of natural disasters. The policy will also focus on equipment failures during normal use.

As a consultant brought into an organization concerned about business continuity I would recommend to first perform a Risk Assessment Analysis and/or Business Impact Analysis (BIA). Conducting a business impact analysis will allow an organization to know the system or application’s downtime tolerance. The analysis will identify all systems and applications that can experience little to no downtime. Conducting risk assessment analysis will allow the organization to identify all the risks at the beginning and during the life of the organization, and grade the risks in terms of likelihood of occurring and seriousness of impact on the organization. Either analysis is an excellent tool and will result in the beginning creations of disaster recovery and business continuity planning. If using the BIA method a good first step is identifying the business’ most crucial systems and processes to assess what effect the outages will have on the business. All systems or applications should have a back-up location offsite to ensure business continuity. The higher the impact the more money a company should spend in order to quickly gain restoration of their business.

FMECA is a methodology to identify and analyse predicted failure modes of various parts within the assembly or system. It is a technique to resolve potential problems in a system before they occur. It is most widely used reliability analysis technique performed between the conceptual and initial stage of the detailed design phase of the system in order to assure that all the potential failures have been considered and the proper provisions have been made to eliminate these failures. [1] (Ref. system reliability theory,2nd edition, Marvin Rausand) this technique can assist in selecting alternative concept for the same system and also provide

Dependability means do things on time. Dependability means well management and coordination with each operation ensuring other process. are reliable, such as delivering right material or information on time, correct foreseeing and planning the facilities, reorder and workforce. It leads to more effective operation. It effectively arranging the facilities, information, material, workforce, money and time to ensure all of them can be available at any time, saves the time to wait or to look for the other substitutes. Dependability arrangement reduces the chance of repeating input resources or some resources leaving unused increasing the cost of maintain or store fee, or labor cost.

Now a day’s Information Technology plays an important role in every field whether it is in big Multinational companies, or in Hospital or in school, colleges, bank etc. It is having a wide range. Every field is now a system oriented where each and every person should have knowledge of basic computer. Information technologies also important to beat the competition in various industries. In our survey report we are going to survey and test the reliability of hardware, networks and software in information technology field. Information technology is a combination of Hardware, software and Networks. It is an combining of technology, users and

Availability: Ensuring that systems and data are accessible to authorized users when they need it.