Describe raid
Describe raid and what are all raids obtainable even in software and hardware?
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Raid is stand for Redundant Array of Independent Disks/Device. This is technology to develop Disk read & write Performance and Fault Tolerance. Through adding up new disk one can recover data if one of disk goes down / fails. Parity is a technique to rebuild data through the disk fails.
Levels in Raid:
0 - stripping
1 - Mirroring
3 - Striping with Parity
5 - Striping with Parity with more fault tolerant widely utilized.
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Explain the term KSA (Knowlede Sense Ability) in Information System ?
Disadvantages of Layered Model: Layered model of data communication is less efficient as compared to Monolithic model of data communication. The layered module requires a frequent switching betwee
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