NetApp Certified Data Administrator (NCDA) – ONTAP v3 — Question 28

You are working on a fabric MetroCluster. After a site failure, the plex starts to resync automatically to the aggregate mirror of Aggr1. The plex now shows a status of resyncing. During this process, you experience a slow resync of the SyncMirror plex.
In this scenario, how do you solve the problem?

Answer options

• A. Add more disks to the aggregate to add more I/O capacity.
• B. Destroy and re-create plex, then run a baseline sync.
• C. Tune the resync speed by adding a QoS policy and limit the concurrent I/O to the aggregate.
• D. Tune the resync speed using the storage raid-options command.

Correct answer: D

Explanation

The correct answer is D because using the storage raid-options command allows you to adjust the parameters that control the resync speed directly at the RAID level. Option A does not directly address the current resync speed, while B would require unnecessary steps without guaranteeing improved performance. Option C, although it suggests a tuning method, does not utilize the specific command that is most effective for this scenario.