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>> FlashArray-Implementation-Specialist시험패스 인증덤프문제 <<
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질문 # 49
How many power connections are required for the FlashArray//XL chassis?
정답：D
설명：
Understanding the physical power requirements of the Pure Storage FlashArray//XL is critical during the site planning and rack-and-stack phases of an installation. Unlike the standard 3U FlashArray//X or //C models, which operate on two power supplies (one per controller for standard 1+1 redundancy), the FlashArray//XL represents a significant leap in compute density and power consumption.
Housed in a massive 5U chassis, the //XL architecture features highly powerful multi-core Intel processors, expansive memory footprints, and a dense PCIe Gen 4 topology to support massive NVMe-oF backend scaling. To safely deliver and distribute the necessary wattage to these components while maintaining enterprise-grade high availability, the //XL chassis is equipped with four dedicated Power Supply Units (PSUs).
During physical installation, the Implementation Engineer must connect all four C20 power receptacles to the rack's Power Distribution Units (PDUs). Best practices mandate that these four connections are split across separate PDUs (e.g., PSUs 0 and 2 on PDU A, and PSUs 1 and 3 on PDU B) to ensure N+N power redundancy. Attempting to power the //XL chassis with only two connections will trigger severe hardware fault alerts within Purity and may prevent the array from drawing enough power to safely initialize both controllers and the 40 front-loading DirectFlash Module with Distributed NVRAM (DFMD) slots.
질문 # 50
During a hardware NDU from FlashArray//XR2 or XR3 to an XR4 model, which default service on-board ports are NO longer present in the XR4 controller design?
정답：B
설명：
In the architectural evolution from FlashArray//XR2 and //XR3 to the FlashArray//XR4, Pure Storage made significant changes to the controller's rear panel and I/O design to accommodate higher performance and PCIe Gen 4 capabilities. One of the most critical changes for an Implementation Engineer to plan for during a hardware Non-Disruptive Upgrade (NDU) is the removal of the onboard, default iSCSI ports that were present on previous generations.
On //XR2 and //XR3 controllers, there were onboard Ethernet ports often used for iSCSI host connectivity without requiring a discrete PCIe adapter. However, the //XR4 controller design removes these dedicated onboard iSCSI ports to streamline the motherboard design and shift host I/O strictly to PCIe add-in cards. The //XR4 retains onboard ports specifically for Management (Mgmt) and Replication connectivity, ensuring that administrative access and array-to-array replication can still be maintained without additional hardware.
Consequently, if a customer was relying solely on the onboard ports for iSCSI traffic on their legacy //XR2 or //XR3, the Bill of Materials (BOM) for the upgrade to //XR4 must include discrete Ethernet/iSCSI PCIe cards to migrate those connections. Failure to identify this architectural difference during the pre-upgrade inventory can result in a loss of host connectivity or an inability to cable the new controllers correctly, as the expected physical ports simply will not exist on the new chassis.
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질문 # 51
What is the maximum number of DirectFlash Shelves supported for FlashArray//XL?
정답：C
설명：
The FlashArray//XL currently supports a maximum of 2 DirectFlash Shelves (DFS).
The FlashArray//XL is a high-density, performance-optimized platform housed in a 5U chassis.
Rack Unit Math: According to the FlashArray//XL specifications and site planning guide, the system supports a maximum configuration footprint of 11 Rack Units (11U).
The base controller chassis occupies 5U.
Each DirectFlash Shelf occupies 3U.
Therefore: 5U (Base) + 3U (Shelf 1) + 3U (Shelf 2) = 11U.
Capacity: Because the //XL chassis itself holds 40 DirectFlash Modules (compared to 20 in a standard //X), and each shelf holds 28 modules, a fully populated system with two shelves provides nearly 100 drives of capacity (40 + 28 + 28 = 96 drives). This massive density reduces the need for "daisy-chaining" large numbers of shelves like legacy SAS architectures. Adding a third shelf would push the total height to 14U, exceeding the current platform definition.
질문 # 52
An Implementation Engineer needs to upgrade Purity to version 6.9.2 on a FlashArray. The .ppkg file was too large to fit on a USB stick as a single file and has been copied to the array as two split files.
How should the Implementation Engineer join the files into a single file to be installed?
정답：A
설명：
When upgrading PurityOS on a Pure Storage FlashArray, the upgrade package file (.ppkg) is heavily compressed but still quite large, typically ranging between 6GB and 12GB depending on the version. Often, Implementation Engineers use a USB flash drive to transfer these upgrade files directly to the array's controllers, especially in dark sites where network-based file transfers are restricted.
However, standard USB flash drives are usually formatted with the FAT32 file system to ensure broad compatibility across different operating systems. FAT32 has a strict maximum file size limit of 4GB. Because the single Purity .ppkg file exceeds this limitation, engineers must split it into smaller chunks (usually using the Linux split -b command, which generates sequential files with suffixes like aa, ab) before copying them to the USB drive.
Once the split files are successfully transferred into the /home/puresetup/ directory on the FlashArray controller, they must be properly reassembled into the original, functional .ppkg binary. Because Purity runs on a custom Linux kernel, standard Linux CLI utilities apply here. The correct and officially supported method to achieve this is using the cat (concatenate) command. By running cat with the wildcard * on the split file names, the system sequentially reads the chunks in alphabetical order and redirects ( > ) the binary output to recreate the single, unified .ppkg file. Using join, tar, or zip will either fail to execute or corrupt the binary package entirely.
질문 # 53
An Implementation Engineer is going on site to complete a data pack evacuation and perform a hardware NDU. At what step should the Implementation Engineer contact support for assistance?
정답：A
설명：
Complex upgrades that involve both removing old capacity (evacuation) and replacing controllers (hardware NDU) require a "checkpoint" with Pure Storage Support to ensure data safety.
The correct procedure dictates contacting support after removing the fully evacuated drives but before proceeding with the hardware NDU.
Why? Once the old drives are physically removed, the array's configuration state has changed. Support needs to verify that the evacuation was 100% successful, that no stale objects or pointers to the removed drives remain in the database, and that the system is fully healthy and redundant.
Proceeding directly into a controller reboot (NDU) without this verification could lead to issues if the array still "thinks" it needs the removed drives, potentially causing a boot failure or data unavailability during the controller failover.
질문 # 54
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