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DES-1121: Host I/O Limits on Storage Groups – Dynamic I/O Distribution Modes

Learn about the dynamic I/O distribution modes available when setting Host I/O Limits on a Storage Group for the Dell DES-1121 certification exam. Explore the correct options and understand their implications.

Table of Contents

Question

When setting Host I/O Limits on a Storage Group, what are the available dynamic I/O distribution modes?

A. Balanced, Always, and OnFailure
B. Never, Balanced, and Always
C. Balanced, OnFailure, and Never
D. Never, OnFailure, and Always

Answer

C. Balanced, OnFailure, and Never

Explanation

When setting Host I/O Limits on a Storage Group, there are three available dynamic I/O distribution modes:

  1. Balanced: This mode distributes I/O requests across all paths, ensuring an even distribution of I/O traffic. It helps optimize performance and resource utilization.
  2. OnFailure: In this mode, I/O requests are sent on the most direct path until a failure occurs. Upon failure, I/O is redistributed across the remaining available paths. This mode provides failover capabilities.
  3. Never: With this mode, I/O requests are always sent on the most direct path, regardless of any failures. It does not perform dynamic I/O distribution, and I/O is not redistributed in case of path failures.

Understanding these dynamic I/O distribution modes is essential for effectively managing Host I/O Limits on Storage Groups and ensuring optimal performance and resilience in Dell storage environments.

Dell DES-1121 certification exam practice question and answer (Q&A) dump with detail explanation and reference available free, helpful to pass the Dell DES-1121 exam and earn Dell DES-1121 certification.