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Pure Storage FlashArray-Implementation-Specialist Prüfungsplan:

ThemaEinzelheiten
Thema 1
  • Post-Installation
  • Upgrade: This section of the exam measures the skills of FlashArray Implementation Specialists and evaluates how professionals confirm system functionality after installation or an upgrade. It involves validating connectivity, running health checks, confirming configurations, and ensuring that the deployment meets operational expectations.
Thema 2
  • Pre-Installation
  • Upgrade: This section of the exam measures the skills of Enterprise Infrastructure Technicians and covers all preparation activities before deploying or upgrading a Pure Storage FlashArray. It includes understanding environmental requirements, verifying prerequisites, checking compatibility, and validating system readiness through appropriate tools and documentation.
Thema 3
  • Installation: This section of the exam measures the skills of Enterprise Infrastructure Technicians and focuses on executing a successful installation of FlashArray systems. It tests the ability to perform physical setup, cabling, configuration of network settings, and the application of initial system configurations necessary for full deployment.
Thema 4
  • Upgrades: This section of the exam measures the skills of FlashArray Implementation Specialists and focuses on tasks involved in managing firmware and software upgrades. Candidates must demonstrate knowledge of upgrade planning, verification steps, and rollback procedures, ensuring that systems are updated with minimal disruption to service.

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FlashArray-Implementation-Specialist Examengine - FlashArray-Implementation-Specialist Zertifizierungsprüfung

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Pure Storage Certified FlashArray Implementation Specialist FlashArray-Implementation-Specialist Prüfungsfragen mit Lösungen (Q161-Q166):

161. Frage
A customer has a FlashArray X20R3 with 22/22 data packs in the chassis at 80% space usage and wishes to swap one of the data packs for a 45TB pack. What step needs to be taken to facilitate this consolidation?

Antwort: B

Begründung:
Adding a DirectFlash Shelf with sufficient temporary extra capacity (63TB) allows data to be evacuated from the smaller 22TB packs during the swap, enabling consolidation without reducing array usage beforehand.


162. Frage
A customer has filled out the Installation Workbook. The management IP information netmask is specified as
"255.255.255.223" and the gateway is specified as "10.24.18.1". What corrective action should be taken to reconcile the IP configuration?

Antwort: B

Begründung:
To reconcile the IP configuration, the Implementation Engineer must correct the invalid netmask to the standard Class C subnet mask of 255.255.255.0 (Option B).
The netmask provided in the workbook, 255.255.255.223, is mathematically invalid for a subnet mask. Subnet masks function by having a continuous sequence of binary '1's followed by '0's. The decimal value 223 (binary 11011111) breaks this rule due to the zero bit in the middle of the octet. Therefore, the array initialization script would reject this value as a syntax error.
In most standard implementation scenarios where a gateway of 10.24.18.1 is provided, the intended network is a /24 (255.255.255.0), which allows for hosts 10.24.18.1 through 10.24.18.254. While Option C (/23) is a valid subnet mask, it assumes a larger network scope than is typically implied by a standard typo. Correcting the mask to the standard /24 is the safest and most logical remediation to ensure the array can communicate with the gateway and the management network.


163. Frage
An Implementation Engineer is performing a hardware NDU from a fully populated FlashArray//X90R3 to a FlashArray//XL that already contains 20 DFM-Ds. The drive transfer is complete, and the //XL is still in SPM (Shelf Personality Mode).
What is the next step the Implementation Engineer should take to continue the upgrade?

Antwort: B

Begründung:
Upgrading from a fully populated FlashArray//X90 R3 to a FlashArray//XL introduces a unique set of hardware migration challenges. To facilitate this massive transition, Pure Storage utilizes a feature called Shelf Personality Mode (SPM). In SPM, the legacy //X90 controllers temporarily act as a "dumb" NVMe-oF expansion shelf attached to the new //XL controllers, allowing the capacity drives to be transparently migrated without external swing hardware.
However, DirectMemory Modules (DMMs)-which are high-speed Storage Class Memory (SCM) drives used strictly for read caching-are handled differently than standard capacity DirectFlash Modules (DFMs).
DMMs do not hold persistent, uniquely resilient user data; they hold a volatile copy of hot read blocks.
While the system is still operating in Shelf Personality Mode, the official Hardware NDU procedure dictates that the Implementation Engineer cannot simply yank the DMMs out, nor can they be migrated collectively as a "data pack." Instead, the engineer must evacuate and remove each DMM one-by-one, and set them aside
. By initiating a manual evacuation on a DMM, Purity gracefully flushes the read cache mapping for that specific module. Once fully evacuated, the drive is safely removed from the legacy //X90 chassis. After the HWNDU is completely finished and the //XL is operating independently, the engineer can then re-insert those compatible DMMs into specific designated slots (typically slots 20-39) on the new //XL chassis to rebuild the cache tier.


164. Frage
An Implementation Engineer performs a controller upgrade. What is the command to check I/O health?

Antwort: B

Begründung:
The command purehost monitor --balance checks the distribution and health of I/O across hosts and initiators, helping verify balanced I/O after a controller upgrade.


165. Frage
An Implementation Engineer is deploying a FlashArray//XLR5 with two DirectFlash Shelves. The engineer wants to ensure the shelves are installed in the preferred PCIe slots to achieve optimal performance and support.
Which PCIe slots should the Implementation Engineer use for connecting the DFS shelves?

Antwort: B

Begründung:
When deploying a high-end Pure Storage FlashArray//XL (which utilizes a massive 5U chassis), the PCIe slot architecture differs significantly from the standard 3U //X series. The //XL is designed for extreme backend NVMe-oF (RoCE) bandwidth to support multiple DirectFlash Shelves (DFS) without creating bottlenecks.
According to the official FlashArray//XL cabling matrix and hardware implementation guides, specific PCIe slots are strictly reserved and optimized for backend expansion. To connect external DirectFlash Shelves, the Implementation Engineer must populate the 100GbE RoCE backend expansion cards into PCIe Slot 0 and PCIe Slot 6 .
When cabling the first two external shelves (typically designated logically as SH8 and SH9 depending on the loop configuration), the preferred mapping routes the NVMe-oF connections from the shelf modules to Slot 0 for one shelf and Slot 6 for the other. Utilizing other slots, such as Slot 1, 7, or 8, is incorrect because those are primarily reserved for frontend host connectivity (like 32G/64G Fibre Channel or frontend NVMe/TCP host bus adapters). Incorrectly slotting the backend cards will result in hardware_check.py validation failures, sub-optimal NUMA node alignment, and potential backend network instability.


166. Frage
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