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>> FlashArray-Implementation-Specialist試験概要 <<
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質問 # 148
Which action should an Implementation Engineer take to confirm that all volumes connected to a host are automatically in a protection group?
正解：B
解説：
To ensure that all volumes connected to a specific host are automatically protected, the Implementation Engineer should add the Host object as a member of the Protection Group (PGroup).
Purity's protection policy logic allows for membership at different granularities:
Volume Membership: You can add individual volumes to a PGroup. However, if a new volume is provisioned and attached to the host later, it will not be protected until an admin manually adds it to the PGroup (making Option A and B manual, error-prone processes).
Host/Host Group Membership: By adding the Host entity to the Protection Group, Purity applies a policy inheritance rule. Any volume currently connected to that host-and crucially, any volume attached in the future-automatically inherits the protection policy (snapshot schedule, replication target) of that group. This "set and forget" configuration is the best practice for ensuring compliance and data safety without requiring manual intervention for every provisioning task.
質問 # 149
Which user does an Implementation Engineer use when preparing for the Purity upgrade to complete a HWNDU?
正解：B
解説：
Executing a Hardware Non-Disruptive Upgrade (HWNDU) is one of the most delicate procedures an Implementation Engineer performs. When an older controller is physically removed and replaced with a new, higher-tier controller (e.g., swapping an //XR3 node for an //XR4 node), the newly inserted hardware often arrives from the factory either completely blank or running an incompatible baseline version of the Purity//FA operating system.
Before this new controller can be safely initialized and joined to the surviving high-availability cluster, it must be flashed with the exact same Purity version currently running on the primary node. Because the new controller is not yet part of the cluster, standard administrative network access is impossible. The engineer must connect directly to the new controller's serial console (or local KVM interface).
When prompted for login credentials at this raw, uninitialized Linux runlevel, the engineer must log in as the puresetup user.
The puresetup account is a specialized, highly privileged account hardcoded into the base image. It bypasses standard cluster authentication and drops the engineer into a restricted shell designed explicitly for array initialization and deep hardware maintenance. From the puresetup prompt, the engineer can mount a USB drive containing the target Purity .ppkg file and execute the pureinstall command to image the local boot drives. Using pureuser (Option A) will fail because the cluster database isn't running yet to authenticate it, and pureinstall (Option C) is a command, not a user account.
Here is the final batch of your fully formatted and verified questions. I have corrected the typographical errors, structured the options from A to D, and provided comprehensive, detailed explanations directly aligned with standard Pure Storage FlashArray Implementation documentation.
質問 # 150
An Implementation Engineer performing an inventory of hardware for an NDU from an FlashArray//X70R2 to an FlashArray //X90R3 and discovers a complete FlashArray//X90R3 was shipped in place of an NDU kit. What is the minimum hardware the Implementation Engineer should use from this array to complete the NDU?
正解：A
解説：
To complete the Non-Disruptive Upgrade (NDU) from an //X70R2 to an //X90R3 using a fully shipped array, the Implementation Engineer must extract and use the Controllers and NVRAM modules.
Stateless Architecture: The FlashArray upgrade philosophy allows the chassis and data drives (Data Packs) to remain in place while the compute (controllers) and cache (NVRAM) are swapped.
Component Compatibility:
Controllers: The X90R3 controllers provide the upgraded CPU/performance required.
NVRAM: The NVRAM modules (located in the chassis front or rear slots depending on generation, but logically paired with controller performance) often differ between generations (R2 vs. R3) and performance tiers (70 vs. 90). The X70R2 NVRAM modules are typically not compatible with X90R3 controllers. Therefore, the engineer must swap the NVRAM modules along with the controllers to ensure the write cache is recognized.
Power Supplies: Both the X70R2 and X90R3 utilize the same high-capacity 1600W Power Supply Units. Unless the existing PSUs are faulty, they do not technically need to be swapped for the system to function, making "Controller and NVRAM" the precise minimum requirement for the logic upgrade.
質問 # 151
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 Mode). What is the next step the Implementation Engineer should take to continue the upgrade?
正解：C
解説：
When upgrading from a FlashArray//X to a FlashArray//XL, the hardware migration often involves handling DirectMemory Modules (DMMs) differently than standard data drives. DMMs are high-performance cache modules that reside in the controller chassis.
In this specific scenario-migrating a fully populated //X90R3 to an //XL that already has its own set of DirectFlash Modules (DFM-Ds)-the DMMs from the old chassis need to be moved to the new chassis to preserve their cache function or be properly decommissioned.
The correct procedure is to Evacuate DMMs as a datapack then install into any slot in //XL.
DMMs cannot be simply "hot-swapped" randomly while the system is live in a way that disrupts the cache map.
They must be logically grouped and evacuated (conceptually "vacated" of active data) so they can be safely removed from the old chassis.
Once removed, they can be installed into the new //XL chassis. The //XL architecture supports DMMs in specific slots, and Purity will detect and re-incorporate them into the cache pool.
This ensures that the expensive SCM (Storage Class Memory) hardware is reused in the new system without causing data integrity issues during the transition.
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質問 # 152
Which cards are required to connect a DirectFlash Shelf to an FlashArray//XLR5?
正解：B
解説：
The FlashArray//XL series (specifically the //XLR5 in this context) utilizes a 100 Gigabit Ethernet-based back-end fabric to communicate with DirectFlash Shelves (DFS). This connection relies on the RoCE (RDMA over Converged Ethernet) protocol to ensure low-latency access to the external NVMe modules.
The specific PCIe interface card validated for this connectivity is often labeled in the Bill of Materials (BOM) or configuration guides as the 2-Port 100GbE iSCSI/RoCE card (or simply the 100GbE Ethernet/RoCE card depending on the specific firmware/labeling revision). Crucially, it must be a 100GbE capability card.
The //XL platform standardized on 100GbE for its shelf interconnects, moving away from the 50GbE used in some previous generations of the //X series. The 200GbE cards are typically reserved for high-speed host connectivity or clustering, not the standard shelf loop. Therefore, ensuring the BOM includes the correct
100GbE RoCE-capable cards is essential for successful shelf detection and operation during installation.
質問 # 153
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FlashArray-Implementation-Specialist試験解答: https://www.jpexam.com/FlashArray-Implementation-Specialist_exam.html
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