Home » EMC » E20-020 » What needs to be considered when designing a distributed storage solution?
What needs to be considered when designing a distributed storage solution?
A. Multiple management tools
B. Fault domain detection and isolation to ensure data availability
C. RAID configuration to ensure a drive failure is avoided
D. Automated storage tiering to enable efficient use of drive
Correct Answer: B
Explanation/Reference:
A distributed data store is a computer network where information is stored on more than one node, often in a replicated fashion. Distributed data stores typically use an error detection and correction technique. Some distributed data stores (such as Parchive over NNTP) use forward error correction techniques to recover the original file when parts of that file are damaged or unavailable. Others try again to download that file from a different mirror.
References:
https://en.wikipedia.org/wiki/Distributed_data_store
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