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>> FlashArray-Implementation-Specialist Prüfungsinformationen <<
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216. Frage
At the completion of an upgrade, what command should the Implementation Engineer run to send phonehome logs?
Antwort: C
Begründung:
After finishing an upgrade or major maintenance event, it is standard practice to manually trigger a log upload to Pure1. This ensures that the most recent diagnostic data-covering the upgrade window itself-is available to Pure Storage Support for verification and historical record.
The command purearray phonehome --send-today is the standard syntax used to force an immediate upload of the current day's logs. This command packages the relevant logs from the upgrade period and pushes them to the Pure1 cloud.
Options like purearray phonehome --send-logs or purelogs --send-all are often incorrect syntax or deprecated aliases.
--send-today is specific and efficient, targeting exactly the timeframe relevant to the maintenance window just completed.
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217. Frage
When using FA File, where can the Implementation Engineer manage directories?
Antwort: B
Begründung:
In the Purity//FA Graphical User Interface (GUI), the management of FA File resources is integrated into the core "Storage" navigation pane. To manage specific file system directories-such as creating new exports, setting quotas, or managing directory-level policies-the Implementation Engineer must navigate to Storage > File Systems .
Within this view, the engineer can see the list of provisioned file systems. By clicking into a specific file system, they can access the "Directories" sub-tab or detailed view where folders (directories) within that file system can be explicitly managed.
It is important not to confuse this with "Directory Services," which is located under the Settings menu.
"Directory Services" (Option B) refers to the configuration of Active Directory (AD) or LDAP connections for user authentication and identity mapping, not the management of the actual file storage structure.
Similarly, the Analytics tab (Option C) provides performance metrics but does not offer configuration capabilities for creating or modifying directories.
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218. Frage
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?
Antwort: B
Begründung:
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.
219. Frage
During a hardware NDU from a FlashArray//X20R3 to an X20R4-LL (low-line) model, the Implementation Engineer encounters a failure during the power supply check. Voltage readings are correct.
What is a likely cause of this failure?
Antwort: A
Begründung:
When performing a Hardware Non-Disruptive Upgrade (HWNDU) to the FlashArray//XR4 generation, Implementation Engineers must be acutely aware of power constraints. The //XR4 architecture introduced massive performance upgrades, leveraging PCIe Gen4 and newer Intel processors. Consequently, standard
//XR4 arrays strictly require high-line power (200V-240V) to operate.
However, to accommodate entry-level customers in smaller datacenters or edge locations, Pure Storage released the //X10R4-LL and //X20R4-LL ("Low-Line") models. These specific models are equipped with power supplies designed to run on standard 120V circuits.
The critical tradeoff for using 120V low-line power is a strict physical limitation on available wattage.
Because 120V circuits cannot deliver the peak wattage required to spin up a fully populated chassis while driving the Gen4 compute overhead, the //X10R4-LL and //X20R4-LL strictly support a maximum of 10 capacity drives (a single data pack) in the chassis.
If an Implementation Engineer is upgrading an older //X20R3 that had 20 drives (which was previously supported on low-line power due to lower CPU overheads) to an //X20R4-LL, the pre-flight power supply validation script will intentionally fail. The array detects that the 120V supplies cannot safely support the 20 physical drives currently seated in the chassis. To resolve this, the customer must either provide 208V+ high- line power and use standard R4 power supplies, or migrate the excess capacity to an external DirectFlash Shelf (which has its own independent power).
220. Frage
An Implementation Engineer is onsite to add a new 91TB (10 x 9.1TB) data pack to a FlashArray that includes a DirectFlash Shelf. The chassis currently contains two write groups, one 45TB (10 x 4.5TB) and one 91TB (10 x 9.1TB). The shelf contains a single 45TB (10 x 4.5TB) write group. The customer requests that the new data pack be added as part of a wide write group. How should the Implementation Engineer meet this request?
Antwort: B
Begründung:
FlashArray performance and capacity management rely on "Write Groups"-logical groupings of drives that Purity uses to stripe data. A "Wide Write Group" typically consists of roughly 20 drives and offers better performance and capacity efficiency than smaller groups. However, Purity generally requires write groups to be contained within a single physical enclosure (chassis or shelf) to maintain failure domain boundaries and performance predictability.
In this scenario, the customer wants the new 91TB pack to form a wide write group. The chassis already has a 91TB group and a 45TB group. The shelf has one 45TB group. To create a wide write group with the new 91TB pack, it is best to pair it with an existing matching or compatible group in the same enclosure. Since the chassis is full (20 drives), you cannot simply add the new pack there without moving something.
The correct procedure is to move the 45TB write group from the chassis to the shelf. This frees up 10 slots in the chassis. The shelf now holds two 45TB groups (which is valid). The chassis now has the original 91TB group and 10 empty slots. The engineer can then install the new 91TB data pack into those empty chassis slots. Purity will then be able to merge or manage these two 91TB packs (the existing one and the new one) as a highly efficient configuration, potentially forming the requested wide write group or at least balancing the high-capacity drives within the controller chassis where bandwidth is highest. This physical rearrangement is necessary because write groups cannot span across the chassis-shelf interconnect.
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221. Frage
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