This problem consists of two parts related to cluster computing: 1. Define and d

Question

This problem consists of two parts related to cluster computing: 1. Define and distinguish among the following terms on scalability: a. Scalability over machine size b. Scalability over problem size c. Resource scalability d. Generation scalability 2. Explain the architectural and functional differences among three availability cluster configurations: hot standby, active takeover, and fault-tolerant clusters. Give two example commercial cluster systems in each availability cluster configuration. Comment on their relative strengths and weaknesses in commercial applications.

Explanation / Answer

a) Scalability over machine size

b) Scalability over problem size

Apart from depending on machine size, it also depends on memory capacity, and communication capability of the machine.

c) Resource scalability

d) Generation scalability

This refers to the capability of a system to scal up the performance using the next generation components, such as a faster processor, a faster memory, a newer version of operating system, a more powerful compiler, etc, with the rest of the system be usable and modifiable as little as possible.

2)

Hot standby server clusters:

Active-takeover clusters:

Fault-tolerant clusters:

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