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FAAA_004勉強の資料 & FAAA_004トレーリングサンプル
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信頼できるFAAA_004|最高のFAAA_004勉強の資料試験|試験の準備方法Pure Storage FlashArray Architect Associateトレーリングサンプル
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Pure Storage FAAA_004 認定試験の出題範囲:
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Pure Storage FlashArray Architect Associate 認定 FAAA_004 試験問題 (Q24-Q29):
質問 # 24
What allows for array upgrades without any degradation in performance?
- A. Non-disruptive upgrades
- B. ActiveCluster
- C. Protection groups
- D. Right-Size Guarantee
正解:A
解説:
The feature that allows for array upgrades without any degradation in performance is non-disruptive upgrades .
Why This Matters:
Non-Disruptive Upgrades:
Pure Storage FlashArray supports rolling upgrades, enabling software updates (e.g., Purity//FA) and hardware upgrades (e.g., controllers) without interrupting operations.
During a controller upgrade, the active/active architecture ensures that one controller continues handling I/O operations while the other is upgraded, maintaining consistent performance.
Why Not the Other Options?
A . ActiveCluster:
ActiveCluster provides synchronous replication for high availability but does not directly relate to non-disruptive upgrades.
C . Right-Size Guarantee:
The Right-Size Guarantee ensures customers receive the expected effective capacity based on their workload's data reduction profile. It is unrelated to upgrades or performance.
D . Protection groups:
Protection groups are used for replication and snapshot management but do not impact the ability to perform non-disruptive upgrades.
Key Points:
Non-Disruptive Upgrades: Ensure seamless updates without impacting performance or availability.
Active/Active Architecture: Enables continuous I/O processing during upgrades.
Customer Experience: Minimizes downtime and disruption during maintenance or upgrades.
Reference:
Pure Storage FlashArray Documentation: "Non-Disruptive Operations with FlashArray" Pure Storage Whitepaper: "Evergreen Architecture and Non-Disruptive Upgrades" Pure Storage Knowledge Base: "Performing Non-Disruptive Upgrades on FlashArray"
質問 # 25
How does Pure Storage help customers increase storage density in their arrays, as new technology becomes available, without rebuying existing storage?
- A. Customers can leverage Pure Storage's Capacity Consolidation offering.
- B. Customers can attach third-party storage arrays to the Pure Storage array.
- C. Customers can mix HDDs and flash modules within the same array.
- D. Customers can add a shelf with a Evergreen//One subscription.
正解:D
解説:
Pure Storage helps customers increase storage density in their arrays as new technology becomes available through its Evergreen//One subscription program. Here's an analysis of the options:
Analysis of Options:
A . Customers can attach third-party storage arrays to the Pure Storage array :
Pure Storage does not support attaching third-party storage arrays directly to its arrays. This is not a valid option.
B . Customers can leverage Pure Storage's Capacity Consolidation offering :
While capacity consolidation is a benefit of Pure Storage arrays, it does not specifically address increasing storage density with new technology.
C . Customers can mix HDDs and flash modules within the same array :
Pure Storage arrays are all-flash and do not support mixing HDDs and flash modules. This is not a valid option.
D . Customers can add a shelf with an Evergreen//One subscription :
With Evergreen//One , customers can non-disruptively add new shelves or upgrade their arrays to take advantage of newer, denser storage technologies without rebuying existing storage. This is the correct answer.
Recommendation:
The correct answer is D. Customers can add a shelf with an Evergreen//One subscription .
Reference:
Evergreen//One Program Overview :
Evergreen//One
Explains the benefits of Evergreen//One, including non-disruptive upgrades and capacity expansion.
FlashArray Expansion Shelves :
FlashArray Expansion Shelves
Details the process of adding shelves to increase storage capacity.
質問 # 26
Refer to the exhibit.
Which FlashArray controller(s) does the exhibit show?
- A. Top: Primary, Bottom: Secondary
- B. Top: CTO, Bottom: CT1
- C. Top: CT1, Bottom: CT2
正解:C
解説:
Exhibit controllers of a Pure Storage FlashArray , specifically labeled as CT1 (top) and CT2 (bottom). This labeling is consistent with Pure Storage's naming convention for its controllers.
Why This Matters:
Controller Identification:
Pure Storage FlashArray controllers are typically labeled as CT1 and CT2 to distinguish between the two controllers in an active/active architecture.
Both controllers work together to provide high availability and redundancy, ensuring seamless operation even if one controller is offline for maintenance or upgrades.
Active/Active Architecture:
In an active/active design, both controllers share the workload equally. If one controller is taken offline, the other seamlessly handles all I/O operations without impacting performance or availability.
Why Not the Other Options?
B . Top: Primary, Bottom: Secondary:
Pure Storage does not use "Primary" and "Secondary" labels for its controllers. Instead, it uses specific identifiers like CT1 and CT2 to refer to the controllers.
C . Top: CTO, Bottom: CT1:
The label "CTO" is not a valid designation for FlashArray controllers. Pure Storage consistently uses CT1 and CT2 to identify the controllers.
Key Points:
Controller Labels: Pure Storage FlashArray controllers are labeled as CT1 and CT2.
Active/Active Design: Both controllers operate simultaneously to ensure high availability and performance.
Redundancy: The dual-controller architecture provides fault tolerance and minimizes downtime during maintenance or failures.
Reference:
Pure Storage FlashArray Documentation: "Understanding FlashArray Controller Architecture" Pure Storage Knowledge Base: "Identifying FlashArray Controllers" Pure Storage Whitepaper: "Active/Active Controller Design for High Availability"
質問 # 27
Refer to the exhibit.
The customer wants to add an additional 10 TB of test/dev workload to this array. What should the SE recommend?
- A. The workload can be added, but the admin should continue monitoring performance and capacity.
- B. Upgrade the controller to an //X90R3 to handle the additional workload.
- C. Add more DirectFlash NVMe modules to the expansion shelf to handle the additional capacity.
- D. Upgrade the 22 TB DirectFlash NVMe modules to a higher capacity to handle the additional workload.
正解:A
解説:
SE should recommend adding the 10 TB test/dev workload to the array while advising the admin to monitor performance and capacity . This recommendation assumes that the array has sufficient resources (e.g., available capacity, performance headroom) to handle the additional workload without requiring immediate upgrades or changes.
Why This Matters:
Current Array Capacity and Performance:
Pure Storage FlashArray is designed to efficiently handle workloads with advanced data reduction techniques (deduplication, compression, etc.) and high-performance NVMe storage.
If the array has sufficient unused capacity and performance headroom, adding a 10 TB test/dev workload is feasible without requiring hardware upgrades.
Monitoring:
After adding the workload, it is critical to monitor both performance metrics (e.g., latency, IOPS, throughput) and capacity utilization to ensure the array continues to meet SLAs and does not exceed its limits.
Why Not the Other Options?
A . Upgrade the controller to an //X90R3 to handle the additional workload:
Upgrading the controller is unnecessary unless the current controller is nearing its performance limits. Test/dev workloads are typically less demanding than production workloads, so this step would likely be premature.
B . Add more DirectFlash NVMe modules to the expansion shelf to handle the additional capacity:
Adding more NVMe modules is only necessary if the array is running out of physical capacity. If the array already has sufficient capacity, this step is not required.
C . Upgrade the 22 TB DirectFlash NVMe modules to a higher capacity to handle the additional workload:
Upgrading the NVMe modules to higher-capacity ones is a significant investment and is only justified if the array is consistently running out of capacity. For a 10 TB workload, this step is likely excessive.
Key Points:
Feasibility of Adding Workload: The array can likely handle the additional 10 TB workload without immediate upgrades.
Monitoring: Continuous monitoring ensures that performance and capacity remain within acceptable limits.
Cost Efficiency: Avoiding unnecessary upgrades or changes helps optimize costs while meeting the customer's needs.
Reference:
Pure Storage FlashArray Documentation: "Capacity Planning and Workload Sizing" Pure Storage Whitepaper: "Best Practices for Managing Test/Dev Workloads" Pure Storage Knowledge Base: "Adding Workloads to FlashArray Without Disruption"
質問 # 28
Refer to the exhibit.
What does the depicted value 77.24 T represent?
- A. The guaranteed capacity
- B. Total raw space on the array
- C. Total useable space
- D. Total deduplicated space
正解:A
解説:
The value 77.24 T in the context of Pure Storage FlashArray represents C . The guaranteed capacity.
Detailed Explanation:
Guaranteed Capacity is a feature of Pure Storage's Evergreen subscription model. It reflects the effective capacity Pure Storage commits to the customer based on their typical data reduction ratios (deduplication, compression, and pattern removal). This value is calculated as:
Guaranteed Capacity=Physical Raw Capacity×Data Reduction Factor (DRF)Guaranteed Capacity=Physical Raw Capacity×Data Reduction Factor (DRF) Pure typically guarantees a minimum DRF (e.g., 3:1 for many workloads), but actual savings often exceed this.
Why Not the Other Options?
A . Total usable space: This would include the total logical capacity after data reduction and overheads (RAID-HD, metadata), which is usually larger than the guaranteed capacity.
B . Total raw space: This refers to the physical capacity of drives (e.g., 100TB raw). The value shown (77.24T) is smaller than raw, so this is incorrect.
D . Total deduplicated space: Pure Storage combines dedupe, compression, and pattern removal into a single "data reduction" metric. Deduplication alone is not isolated in capacity reporting.
Official Reference:
Pure Storage documentation explicitly defines Guaranteed Capacity as the "logical capacity Pure commits to deliver, factoring in data reduction." This aligns with the Evergreen//Forever subscription model, where customers pay for usable capacity, not raw storage.
質問 # 29
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