The required minimum number of Dell PowerScaleP100andB100accelerator nodes that can be added to a PowerScale cluster is2.

Understanding Accelerator Nodes:

P100 and B100 Nodes:

TheP100(Performance Accelerator) andB100(Backup Accelerator) nodes are designed to enhance specific functionalities within a PowerScale cluster.

P100nodes improve performance by providing additional CPU and RAM resources.

B100nodes are used to accelerate backup operations.

Minimum Node Requirements:

High Availability:

Dell PowerScale requires a minimum oftwo accelerator nodesto ensure high availability and redundancy.

If one node fails, the other can continue to provide services without interruption.

Cluster Integration:

Adding at least two nodes allows the cluster to distribute workloads effectively and maintain balanced performance.

Dell PowerScale Best Practices:

Fault Tolerance:

Deploying a minimum of two nodes prevents a single point of failure.

Scalability:

Starting with two nodes allows for future expansion as performance or capacity needs grow.

Why Other Options Are Incorrect:

Option B (4):

Four nodes exceed the minimum requirement; while acceptable, they are not the minimum.

Option C (1):

A single node does not provide redundancy or high availability.

Option D (3):

Three nodes also exceed the minimum requirement.

Dell PowerScale References:

Dell EMC PowerScale Network Design Considerations:

Outlines the requirements for deploying accelerator nodes.

Dell EMC PowerScale Network Design Considerations

Dell EMC PowerScale OneFS Administration Guide:

Provides information on node types and deployment best practices.

Dell EMC PowerScale OneFS Administration Guide

Knowledge Base Articles:

Article ID 000123001:"Minimum Requirements for Adding Accelerator Nodes to PowerScale Clusters"