A customer plans to deploy N+2d:1n protection on a 5-node Isilon cluster. How much capacity will be used to store a 320 KiB file?

Question

Quizplus · Accepted Answer

N+2d:1n protection means 2 data protection stripes and 1 node protection stripe. For a 5-node cluster, the file will be divided into 3 data stripes and 2 protection stripes. Each stripe will be 64 KiB, resulting in a total of 5 stripes (3 data + 2 protection) x 64 KiB = 320 KiB + 128 KiB = 448 KiB. However, due to the overhead of the protection scheme, the total capacity used is 576 KiB.

A Customer Plans to Deploy N+2d:1n Protection on a 5-Node