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| Certification Vendor: | Pure Storage |
|---|---|
| Exam Name: | Pure Storage Certified FlashArray Implementation Specialist |
| Exam Number: | FAIS |
| Passing Score: | Not publicly disclosed by Pure Storage |
| Related Certifications: | Pure Storage FlashArray Implementation Specialist Certification |
| Exam Price: | USD $300 |
| Exam Duration: | 120 minutes |
| Certificate Validity Period: | 3 years |
| Real Exam Qty: | 75 |
| Exam Format: | Multiple Choice (three or four options, one to two correct answers) |
| Available Languages: | English |
| Sample Questions: | Pure Storage FlashArray-Implementation-Specialist Sample Questions |
| Exam Way: | Online (proctored via examslocal.com) |
| Pre Condition: | Recommended hands-on experience with Pure Storage FlashArray systems. Targeted at internal Pure Storage Support Specialists, Partner Support Specialists with root level access, and Enterprise or Dark Site customers with root level access. |
| Official Syllabus URL: | https://academy.purestorage.com/student/page/2164533-certification-fais |
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NEW QUESTION # 147
What upgrade scenario required an upgrade of power supplies?
Answer: B
Explanation:
The upgrade from a FlashArray//X10 (or X20) to a FlashArray//X50 requires a mandatory power supply unit (PSU) upgrade .
While the FlashArray//X series utilizes a shared chassis design (3U) for models X10 through X90, the power requirements differ significantly between the entry-level and performance-tier controllers.
* X10/X20: These models typically ship with 1000W or 1200W power supplies, which are sufficient for their lower-power CPUs and component loads.
* X50/X70/X90: These "Performance" class arrays utilize higher-wattage Intel Xeon processors and often support denser NVMe configurations, necessitating 1600W power supplies to ensure stability and N+1 redundancy.
When a customer performs a Data-in-Place upgrade (swapping controllers) from an X10 to an X50, the existing chassis is retained, but the lower-capacity PSUs must be physically swapped for the high-capacity
1600W units to support the new X50 controllers. Conversely, upgrades like X50 > X70 (Option B) or R2 > R3 (Option C) typically occur within the same power tier, utilizing the existing 1600W PSUs.
NEW QUESTION # 148
An Implementation Engineer arrives on site to complete a shelf evac. What action must take place before Pure Support can run the completion commands?
Answer: B
Explanation:
Data evacuation from a shelf is a sensitive background process where data is migrated off specific physical media to free it for removal. While the purearray evacuate command initiates the data movement, the finalization of the process-specifically the logical removal of the shelf object from the system configuration to allow for safe physical disconnection-often requires engineering-level commands or verification.
Therefore, before Pure Storage Support can log in to run these specific completion scripts or verification checks, the Implementation Engineer must Enable Remote Assist (RA).
Remote Assist creates a secure, outbound SSH tunnel that allows Support to access the array remotely.
Without RA enabled, Support cannot connect to the array to execute the necessary puredrive or internal maintenance commands to mark the shelf as "vacated" and safe to unplug.
Powering off the shelf (Option B) before this step could result in data loss or an array outage if the system still believes data resides there.
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NEW QUESTION # 149
During a FlashArray//XR5 upgrade, when should the Implementation Engineer run start_ndu controller-ndu to set the HWNDU specific tunable?
Answer: B
Explanation:
When executing a Hardware Non-Disruptive Upgrade (HWNDU) to a new chassis generation, such as moving to a FlashArray//XR5, the new controllers must be properly prepped to join the existing, older- generation cluster. The correct sequence of operations is critical to prevent the cluster from rejecting the mismatched hardware.
Once the new //XR5 controller is physically inserted into the slot of the removed older controller, the Implementation Engineer must first install the correct target version of the Purity//FA operating system locally using the pureinstall command via the KVM console. After Purity is successfully installed, but strictly before the controller is logically initialized to join the cluster (via the puresetup secondary command), the engineer must execute the start_ndu controller-ndu script.
This script applies specific internal HWNDU tunables-such as relaxing hardware mismatch checks, bypassing specific alert monitors, and adjusting heartbeat timeouts. Setting these tunables ensures that when the controller is finally initialized, the surviving primary controller safely accepts it as a valid secondary partner without triggering a system fault, hardware rejection, or disrupting active host I/O.
NEW QUESTION # 150
An Implementation Engineer is getting ready to install four DFMs into a 16-module efficiency bundle and notices that the new modules are DFMDs while the installed modules are DFMs.
What should the Implementation Engineer do to get the array using a 20-module wide write group?
Answer: A
Explanation:
Understanding the strict hardware boundaries of Pure Storage capacity expansion is critical. DirectFlash Modules (DFMs) and DirectFlash Modules with Distributed NVRAM (DFMDs) are fundamentally different hardware components. Standard DFMs contain only raw NAND flash and rely entirely on centralized, dedicated NVRAM modules located in the array chassis to protect write cache. DFMDs, however, feature their own onboard non-volatile memory to distribute the cache load across the capacity drives (primarily utilized in //XL and //XR4 architectures).
Pure Storage architecture explicitly dictates that drives operating within a single efficiency bundle or Wide Write Group (WWG) must be of the exact same hardware classification to ensure predictable parity calculation, wear leveling, and cache distribution. Mixing legacy DFMs with newer DFMDs within the same
20-module write group creates a severe hardware imbalance and is a strictly unsupported configuration.
While internal engineering tunables (like those suggested in Option A) occasionally exist to force overrides in lab environments, applying them in a customer's production array to bypass physical hardware incompatibility violates all implementation best practices. The only correct and safe action for the Implementation Engineer is to halt the physical installation, flag the Bill of Materials (BOM) mismatch, and work with the account
/logistics team to RMA the DFMDs and ship the correct standard DFMs.
NEW QUESTION # 151
An Implementation Engineer has installed a data pack and the puredrive list command shows the drives in
"unadmitted" status.
Which command should the Implementation Engineer run to complete the admission?
Answer: D
Explanation:
Capacity expansion on a Pure Storage FlashArray is a highly controlled, safe process. When an Implementation Engineer physically unboxes and inserts a new data pack (a group of DirectFlash Modules) into the available drive bays of a chassis or a DirectFlash Shelf, the Purity operating system detects the hardware instantly. However, it does not automatically wipe the drives and assimilate them into the global storage pool.
Instead, the newly inserted modules are placed into a safe, quarantined state known as "unadmitted." This intentional design choice prevents catastrophic data loss in the event that an engineer accidentally inserts a drive containing live data from another system, or inserts drives before the customer is financially or operationally ready to activate the new capacity.
To officially claim the drives, integrate them into the system's Wide Write Groups (WWGs), and initiate the background parity redistribution process, the Implementation Engineer must explicitly authorize their use.
This is accomplished by running the puredrive admit command. The engineer can either specify the exact drives (e.g., puredrive admit CH0.BAY10 CH0.BAY11...) or use a global flag like puredrive admit --all if all unadmitted drives are ready for ingestion. Once admitted, the drives transition to a "healthy" state, and the array's total usable capacity increases seamlessly without any host disruption.
NEW QUESTION # 152
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