FlashArray-Implementation-Specialist Exam Dumps : Pure Certified FlashArray Implementation Specialist (FAIS) Exam

To perform a "powercycle" or restart of the FlashArray system as typically requested by Support for diagnostic or initialization purposes, the correct and safe method is to run the purearray reboot command.

While the term "power cycle" often implies a physical interruption of power in general IT terminology, Pure Storage FlashArrays are designed as "Always-On" systems and do not have standard physical power buttons on the controllers for this purpose (Option A is incorrect as no such button exists for system-wide power cycling). Physically unplugging the power cables (Option B) constitutes a "hard" power cycle or "cold boot," which is generally reserved for specific hardware replacements or emergency procedures, not standard support requests on a healthy or newly installed system.

The purearray reboot command gracefully shuts down the Purity operating system services, flushes data from the volatile memory to the non-volatile storage, and restarts both controllers sequentially or simultaneously depending on the arguments. This ensures that the system returns to a clean state without the risk of data inconsistency or "dirty" shutdowns that physical cable removal might cause. In the context of a new installation or support troubleshooting, this software-driven restart is the standard procedure.

DirectFlash Shelves (DFS) are populated with DirectFlash Modules (DFMs) or DFMDs (DirectFlash Module with Distributed NVRAM, though usually just DFMs in shelves). For the Gen 2 DirectFlash Shelf , Pure Storage offers specific "starter packs" or partially populated configurations to allow for capacity flexibility while maintaining necessary performance and electrical balance.

The validated starter configurations for a Gen 2 DFS are 12-slot and 14-slot populations. This means the shelf must be populated with at least this number of drives to be a supported configuration. Populating fewer than this (e.g., 8 or 10) might result in insufficient bandwidth utilization across the shelf's internal fabric or fail strict configuration checks in the Purity operating system. Engineers must verify the drive count matches these supported increments during inventory to avoid configuration errors during initialization.

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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.