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

To meet the requirement of deploying a specific, newer Purity version (6.1.21) on a factory-fresh array that arrived with older code (5.3.8), the most efficient and correct procedure for an Implementation Engineer is tocreate a bootable USB stick with the target 6.1.21 ISO and reimage the controllers.

The "Factory Reset" or re-imaging process is a supported method for initial installation when the desired software baseline differs significantly from what is pre-loaded. Since the array contains no customer data yet, re-imaging is non-destructive to business operations and avoids the time-consuming process of initializing the array on old code, registering it, and then performing a multi-step software upgrade (Option C).

Procedure:The engineer downloads the specific Purity ISO from the Pure Storage Support portal, uses a tool like Rufus or Etcher (or the pureinstall utility) to create the bootable media, and boots the controllers from this USB to lay down the fresh image.

Option Bis incorrect because copying .ppkg files is part of anonline upgradeworkflow for running systems, not a re-imaging process for a raw box.

When installing thefirst DirectFlash Shelf (DFS)on aFlashArray//XR2 or //XR3utilizing the onboard or default mezzanine connectivity, the correct ports to use areETH6 and ETH9.

Hardware Layout:The FlashArray//XR2 and //XR3 utilize a specificEthernet Mezzanine (EMEZZ)slot for backend connectivity to NVMe-oF shelves. This card typically enumerates its ports as ETH6 through ETH9 (a 4-port configuration).

Cabling Rule:To maximize physical separation and ensure redundancy across the internal ASIC lanes of the mezzanine card, standard cabling procedures for thefirstshelf dictate using the outer ports:ETH6(Port 0) andETH9(Port 3).

Redundancy:This configuration (Port 0 and Port 3) is preferred over using adjacent ports (like 6 and 7) to reduce the risk of a single lane cluster failure affecting both connections to the shelf. The second shelf, if added later, would typically utilize the remaining ports (ETH7 and ETH8).

When performing a specific legacy upgrade from aFlashArray FA-405 to a FlashArray//X Series, the 2-Port InfiniBand card must be installed inPCIe Slot 3of the target controller (CT1).

Upgrade Architecture:The legacy FA-400 series utilized InfiniBand (IB) for its high-speed cluster interconnect. The modern FlashArray//X series utilizes PCIe/NTB over an internal midplane or different interconnects. However, during anon-disruptive upgrade (NDU)or data migration where the new //X controller is temporarily clustered with the old FA-405 controller to transfer state and data, they must share a compatible link.

Slot Reservation:The FlashArray//X hardware guide and upgrade procedures strictly designateSlot 3(the top slot on the riser in many //X chassis configurations) as the reserved location for this temporary InfiniBand interconnect card. Installing it in Slot 0 or 2 would conflict with the primary Host I/O or backend connectivity paths, potentially causing the controller to fail the upgrade pre-checks or preventing the cluster from forming.