NS0-157 Question #331: Real Exam Question with Answer & Explanation

The correct answer is C. The number of disks added must be an even number and equally divided between the two plexes. D. The disks are selected first on the basis of equivalent bytes per sector (bps) size, then on the basis. SyncMirror volume creation requires an even number of disks split equally across two plexes, with disk selection prioritizing equivalent bytes-per-sector size first.

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Question

Which two are true when creating a SyncMirror volume? (Choose two.)

Options

AThe disks selected for Plex 0 and Plex 1 must come from the same disk shelf.
BThe disks selected for Plex 0 and Plex 1 must come from the same disk pools.
CThe number of disks added must be an even number and equally divided between the two plexes.
DThe disks are selected first on the basis of equivalent bytes per sector (bps) size, then on the basis

Explanation

SyncMirror volume creation requires an even number of disks split equally across two plexes, with disk selection prioritizing equivalent bytes-per-sector size first.

Common mistakes.

A. Plex 0 and Plex 1 disks should come from different physical disk shelves to provide the hardware-level redundancy that SyncMirror is designed to deliver.
B. Plex 0 and Plex 1 must draw disks from different disk pools (pool 0 and pool 1 respectively) to maintain pool-level fault isolation, not from the same pool.

Concept tested. SyncMirror plex disk selection rules and requirements

Reference. https://docs.netapp.com/us-en/ontap/disks-aggregates/create-mirrored-aggregates-task.html

Topics

#SyncMirror#disk pools#plexes#disk selection

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