Dell EMC Exam E20-555 Topic 7 Question 86 Discussion

Actual exam question for Dell EMC's E20-555 exam

Question #: 86
Topic #: 7

Your customer has an Isilon Gen 6 cluster with eight H400 nodes. During an unexpected power outage some

of the nodes go offline simultaneously.

How many nodes need to remain up and communicating over the backend network to maintain a quorum in

the cluster and still enable write access to the OneFS file system?

Show Suggested Answer

Suggested Answer: B

storage/h10719-isilon-onefs-technical-overview-wp.pdf (23)

by Serina at Apr 26, 2024, 10:09 PM

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6 months ago

Right, I've read somewhere that 4 is the sweet spot for maintaining quorum in an 8-node cluster.

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6 months ago

I think it's 4 though. With 8 nodes, 4 should be enough to maintain quorum and write access.

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7 months ago

Isn't the quorum usually just over half the nodes? So maybe 5 makes sense.

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7 months ago

You sure? I was considering 5 nodes since that might ensure better reliability.

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8 months ago

Yeah, I saw that. I think the answer is 4 nodes need to be up.

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8 months ago

Did you guys get the question about the Isilon Gen 6 cluster?

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