A customer has deployed an ActiveCluster solution with Uniform Configuration.

For anActiveCluster solution with Uniform Configuration, the architect should recommenddual connections from each controller through two fabricsto ensure high availability and redundancy in Fibre Channel connectivity.

Why This Matters:

Dual Connections:

Each controller should have dual connections to provide redundancy and fault tolerance. If one connection fails, the other ensures uninterrupted communication between the host and the array.

Two Fabrics:

Using two independent Fibre Channel fabrics (e.g., Fabric A and Fabric B) ensures that there is no single point of failure in the network infrastructure. This aligns with best practices for ActiveCluster deployments.

Why Not the Other Options?

B. A single connection from each controller through two fabrics:

A single connection per controller does not provide sufficient redundancy. If the connection fails, the host may lose access to the array.

C. Crossed connections from each controller through a single fabric:

Using a single fabric introduces a single point of failure. Additionally, "crossed connections" are not a standard or recommended configuration for ActiveCluster.

D. A single connection from each controller through a single fabric:

This configuration lacks both redundancy at the connection level and at the fabric level, making it highly vulnerable to failures.

Key Points:

Redundancy:Dual connections and two fabrics ensure fault tolerance and high availability.

Best Practices:Aligns with Pure Storage's recommendations for ActiveCluster deployments.

Uniform Configuration:Ensures consistent and reliable connectivity across all hosts in the cluster.

References:

Pure Storage FlashArray Documentation: "ActiveCluster Best Practices for Fibre Channel Connectivity"

Pure Storage Whitepaper: "Designing High-Availability Solutions with ActiveCluster"

Pure Storage Knowledge Base: "Configuring Host Connections for ActiveCluster"