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Question 11 - NS0-516 discussion

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A company implemented Automatic Load Balancing (ALB). When the controller workloads are monitored, it becomes obvious that there is an imbalance and that ALB is not working correctly.

In this scenario, what are two causes of the problem? (Choose two.)

A.

The company implemented a load balancing min-min algorithm that does not support ALB

Answers
A.

The company implemented a load balancing min-min algorithm that does not support ALB

B.

The company implemented an adaptive load balancing agent that does not support ALB

Answers
B.

The company implemented an adaptive load balancing agent that does not support ALB

C.

The company implemented a host multipath driver that does not support ALB

Answers
C.

The company implemented a host multipath driver that does not support ALB

D.

The company implemented a host type that does not support ALB

Answers
D.

The company implemented a host type that does not support ALB

Suggested answer: C, D

Explanation:

Understand ALB Requirements: Automatic Load Balancing (ALB) in NetApp E-Series systems requires compatible host multipath drivers and host types.

Check Host Multipath Driver:

Verify if the host multipath driver installed supports ALB.

Incompatibility with the multipath driver can prevent ALB from functioning correctly, causing imbalance.

Review Host Type Compatibility:

Ensure the host types used in the configuration support ALB.

Certain host types might not be compatible, resulting in ALB malfunction.

Potential Causes:

Host Multipath Driver (C): If the multipath driver does not support ALB, it won't distribute I/O efficiently across controllers.

Host Type (D): Incompatible host types can lead to issues with ALB implementation, causing imbalances.

Steps for Resolution:

Update or replace the host multipath driver with a version that supports ALB.

Reconfigure or update the host types to ensure compatibility with ALB.

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asked 18/11/2024
Zaid Mohammed Haqqani
33 questions
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