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Question 76 - D-PSC-MN-01 discussion

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What type of upgrade on a Dell EMC PowerScale cluster requires rebooting of all nodes at the same time?

A.

Simultaneous

Answers
A.

Simultaneous

B.

Rolling

Answers
B.

Rolling

C.

Side-by-side

Answers
C.

Side-by-side

D.

In-place

Answers
D.

In-place

Suggested answer: A

Explanation:

In Dell EMC PowerScale clusters, upgrades can be performed using different methods, each with its own impact on cluster availability and performance.

Simultaneous Upgrade:

Definition:

A simultaneous upgrade involves rebooting all nodes in the cluster at the same time.

Characteristics:

The entire cluster is taken offline during the upgrade process.

Downtime is required, making it suitable for non-production environments or maintenance windows.

Why Other Options Are Incorrect:

Rolling Upgrade (Option B):

Nodes are upgraded one at a time, allowing the cluster to remain online.

Side-by-Side Upgrade (Option C):

Involves building a new cluster and migrating data; nodes are not rebooted simultaneously.

In-Place Upgrade (Option D):

Refers to upgrading software on the existing hardware but does not imply simultaneous reboots.

Dell PowerScale

Reference:

Dell EMC PowerScale OneFS Upgrade Guide:

Chapter on Upgrade Methods:

Describes simultaneous upgrades and their impact on cluster availability.

Provides guidelines on when to choose this method.

Best Practices:

Schedule simultaneous upgrades during planned downtime.

Notify users of the expected service interruption.

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asked 29/10/2024
Stephanie Scheffers
42 questions
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