Pure Storage Updated FlashArray-Implementation-Specialist Exam Questions and Answers by ayoub

Hardware Non-Disruptive Upgrades (HWNDU) rely strictly on the array being in a fully healthy state before the process begins. The validate-array-health check is designed to gate the upgrade if any component that provides redundancy or data integrity is compromised. NVRAM (Non-Volatile Random Access Memory) modules are critical components in the FlashArray architecture; they store in-flight write data to ensure it is persistent before being destaged to flash.

A "Code 60" alert specifically points to a hardware issue with an NVRAM module. While the //X70 model indeed has redundancy (often using multiple NVRAM modules), proceeding with an upgrade while one is degraded puts the array at risk. During an NDU, controllers reboot and failover; running on reduced redundancy during these critical operations is not supported and is blocked by the health checks.

The correct first step for an Implementation Engineer is to attempt toreseat the unhealthy NVRAM module. Often, connection issues or transient seating faults can trigger these alerts. After reseating, the engineer must run the health check again to confirm the module status has returned to "healthy." If the module remains unhealthy after reseating, it must be replaced before the upgrade can proceed. You cannot simply disable it or ignore it, as the upgrade script will likely refuse to continue to protect data integrity.

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To determine whether a specific FlashArray configuration, such as the FlashArray//X50R3, supports or is currently equipped to handle SAS Flash Modules, the command purehw list --type drive --all is the correct diagnostic tool. While the FlashArray//X series is architected as a 100% NVMe platform using DirectFlash Modules (DFMs) in the base chassis, it retains the capability to support legacy SAS Flash Modules (SSDs) through the attachment of external SAS expansion shelves.

The purehw list --type drive --all command provides a comprehensive enumeration of the physical drive hardware components recognized by the system. Unlike the puredrive list command, which focuses on the logical status, capacity, and admission state of the drives, the purehw command with the --type drive flag exposes the hardware-level details, including the interface protocol (SAS vs. NVMe) and the physical location of the drive bays.

By running this command, an Implementation Engineer can verify if the array is communicating with any SAS-based drive hardware. If SAS modules or SAS-compatible drive bays in an external shelf are listed, support is confirmed. Conversely, option A is syntactically incorrect for this purpose, and option B (purehw list --type controller) focuses on the compute node specifications rather than the storage media interfaces. Therefore, listing the drive hardware components is the definitive method to validate the presence and support of SAS Flash media within the specific array configuration during a capacity consolidation.

Verifying external connectivity is a critical final step in any maintenance window to ensure the array remains supported. The commandpuresupport testis the specific tool designed to validate the entire support communication chain.

Running puresupport test:

Checks DNS resolution for Pure1 endpoints.

Tests outbound HTTPS connectivity through any configured proxies.

Verifies the "Phone Home" log upload capability.

Validates the "Remote Assist" tunnel functionality.

This comprehensive check confirms that the array can "call home" if an issue arises and that Support can connect remotely if needed. purearray test is generic or refers to internal tests, whereas puresupport test explicitly targets the support infrastructure.