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| Section | Weight | Objectives |
|---|---|---|
| Pre-Installation / Pre-Upgrade | 25% | - Hardware and software compatibility verification - Planning and preparation steps - Environment and configuration prerequisites |
| Installation | 23% | - Network and storage setup - Physical installation procedures - System initialization and configuration |
| Upgrades | 32% | - Purity version interoperability - Firmware and component updates - Controller and shelf upgrades - Non-disruptive upgrades (NDU) |
| Post-Installation / Post-Upgrade | 20% | - Configuration optimization - Validation and verification procedures - Troubleshooting and issue resolution |
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NEW QUESTION # 233
An Implementation Engineer is installing a FlashArray//XL chassis with two DirectFlash Shelves.
What is the minimum rack space required for this installation?
Answer: C
Explanation:
When planning the physical installation and rack space for a Pure Storage FlashArray//XL deployment, it is critical to understand the precise dimensions of the specific hardware components. Unlike the standard FlashArray//X series (which uses a 3U chassis), the FlashArray//XL utilizes a massive, high-density 5U chassis to accommodate its extreme performance architecture, high-wattage power supplies, and up to 40 DirectFlash Module with Distributed NVRAM (DFMD) slots.
When a customer needs to scale beyond the internal chassis capacity, they attach external DirectFlash Shelves (DFS). Regardless of the generation, a standard Pure Storage DirectFlash Shelf occupies 3U of rack space.
Therefore, to calculate the absolute minimum continuous rack space required for this specific deployment, the Implementation Engineer must add the footprint of the main chassis and the two expansion shelves:
* FlashArray//XL Chassis: 5U
* DirectFlash Shelf 1: 3U
* DirectFlash Shelf 2: 3U
Total Rack Space = 11U . Failing to secure at least 11U of contiguous space prior to the physical installation will result in racking delays and fragmented backend cable routing.
NEW QUESTION # 234
What is the maximum number of SAS shelves supported for FlashArray//XL?
Answer: A
Explanation:
The FlashArray//XL supports 0 (zero) SAS expansion shelves for permanent capacity.
* Architecture: The FlashArray//XL is architected exclusively for NVMe storage media. Its backend connectivity utilizes 100GbE RoCE (RDMA over Converged Ethernet) to connect to DirectFlash Shelves (DFS) . It does not possess the legacy SAS controllers or ports required to drive SAS expansion shelves.
* Migration Exception: While a "SAS Swing Shelf" (containing legacy SSDs from an older array) might be temporarily attached during a specific Data-in-Place upgrade migration scenario, this is a transient state. In terms of supported operational configuration for storage capacity, the limit is zero. The platform relies entirely on DirectFlash Modules in the chassis and external DirectFlash Shelves.
* Contrast: Older generations (FlashArray//M, FlashArray//X R1/R2) supported SAS shelves, but the
//XL platform eliminates this protocol entirely in favor of end-to-end NVMe.
NEW QUESTION # 235
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?
Answer: C
Explanation:
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.
NEW QUESTION # 236
Before installing array rails, where should the cage nuts be placed?
Answer: A
Explanation:
Cage nuts should be placed in the lowest square hole of the lowest rack unit (RU) where the array rails will be installed to ensure proper alignment and support.
NEW QUESTION # 237
What command should the Implementation Engineer run to configure a proxy?
Answer: B
Explanation:
For a Pure Storage FlashArray to fully utilize its predictive support capabilities, it must maintain a persistent, secure outbound connection to the Pure1 cloud infrastructure. This allows the array's Callhome Connection Manager (CCM) to transmit telemetry data, hardware alerts, and heartbeat signals. However, in many enterprise environments, storage management networks do not have direct, unfiltered access to the public internet. Instead, all outbound HTTP/HTTPS traffic must be routed through a corporate proxy server.
To facilitate this, the Implementation Engineer must configure the FlashArray to tunnel its Call Home traffic through the customer's proxy. The officially supported Purity CLI command to achieve this is purearray setattr --proxy https:// < proxy_address > : < port > .
By executing this command, the system modifies its global network attributes. Purity immediately updates the internal routing daemon, instructing it to encapsulate all outgoing Pure1 management traffic and direct it to the specified proxy IP or hostname on the designated port (e.g., port 8080 or 3128). Options B, C, and D are fabricated commands that do not exist within the Purity CLI framework. Once the proxy is set, the engineer should always validate the configuration by running purearray test phonehome to ensure the proxy is properly allowing the traffic to pass through to the Pure Storage cloud endpoints.
NEW QUESTION # 238
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