FAIS FlashArray-Implementation-Specialist Exam Dumps

TheFlashArray//XR2 and //XR3(representing the FlashArray//X generation) utilize a standardized3U(3 Rack Units) chassis form factor.

This 3U chassis is the foundation for the majority of the FlashArray//X line, including the //X10, //X20, //X50, //X70, and //X90 models. It is designed to be compact while providing sufficient airflow and space for the dual controllers, two data packs (up to 20 DirectFlash Modules), and power/cooling infrastructure.

Dimensions:Approximately 5.12 inches (13 cm) in height.

Rack Layout:Implementation Engineers must reserve 3U of contiguous space for the base controller chassis. If expansion shelves are included, they typically require an additional 2U each (for SAS or NVMe shelves).

Option B (4U) is not a standard height for current Pure Storage arrays. Option C (5U) refers to theFlashArray//XL, a larger, performance-optimized platform designed for maximum scale and density, which uses a significantly taller chassis to accommodate more expansion slots and power components. Therefore, for the specified R2/R3 X-series, 3U is the correct height.

When performing a controller upgrade (Non-Disruptive Upgrade) from an //X50R3 to an //X50R4, the specific hardware configuration of the source array dictates the target bill of materials. The presence ofSAS drivesin the chassis indicates that the source is a legacy or transitional configuration, as the standard //X R4 platform is optimized for end-to-end NVMe (DirectFlash).

However, the question asks for the specific controller SKU required. In Pure Storage nomenclature for upgrades, the standard controller replacement part is typically the base model code, hereFLASHARRAY//XC50 R4.

The "XC" designation often refers to the controller component itself in upgrade kits. While special considerations apply to SAS media (which are usually phased out or require specific handling during R4 upgrades since R4 natively drops legacy SAS support on the motherboard), thecontrollerpart number itself remains the standard R4 SKU (Option C). Options like "SE" or "NS" (often denoting specific encryption or networking variants) are not the standard identifiers for the base controller upgrade in this context.

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To perform this specific "SAS-to-NVMe" media refresh during an upgrade, aSAS Swing Shelfis required.

The scenario describes a transition from a FlashArray//M (SAS-based chassis) to a FlashArray//X (NVMe-based chassis). The customer intends to retire the old SAS SSDs (the "SAS Chassis Data Packs") and move to new DirectFlash Modules (DFMs).

The Constraint:The old SAS drives physically cannot be inserted into the new //X NVMe chassis.

The Workflow:To migrate the data, the old SAS drives must be temporarily attached to the new //X controller as external capacity. Since they were originallyinternalchassis drives, they have no enclosure. Therefore, the engineer needs an emptySAS expansion shelf(Swing Shelf) to house these legacy drives.

Process:

Install the new //X chassis with the new DFMs.

Install the SAS Swing Shelf and populate it with the old SAS drives from the //M chassis.

Connect the SAS shelf to the //X controller (requires SAS connectivity).

The system sees the old data (external) and the new capacity (internal).

The system evacuates the data from the SAS shelf to the internal DFMs.

Once empty, the SAS shelf is removed.

A "DFM Swing Shelf" (Option A) would not help read the old SAS drives.

Upon verifying that a hardware upgrade is successfully completed and the system is stable, the command to remove the maintenance suppression ispurealert untag --maintenance.

During upgrade activities, engineers often apply a "maintenance" tag or flag to the alert system to prevent the generation of "noise" (false positive alerts) that would otherwise be triggered by expected events like controller failovers, link downs, or path fluctuations. This suppression ensures that the customer and Pure Support are not flooded with critical tickets for planned work.

Once the work is done, it is critical to remove this suppression so the array resumes normal monitoring. The purealert command with the untag verb and the specific --maintenance flag is the correct syntax to clear this state. Options A and C use invalid syntax (--cancel or --unset) that is not recognized by the Purity CLI for this specific alert management function. Failing to run this command leaves the array in a state where genuine failures might be masked, violating the "Always-On" monitoring standard.