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Pure Storage FlashArray-Storage-Professional Exam Syllabus Topics:

Topic Details
Topic 1
  • FA File: Covers configuration and management of FA File services, including DNS setup, Active Directory integration, and protocol access. Focuses on enabling secure and efficient file sharing across the organization.
Topic 2
  • Data Protection: Covers snapshot management, replication configuration, policy management, SafeMode, and advanced replication technologies such as ActiveDR. Focuses on ensuring data availability, disaster recovery, and protection against data loss.
Topic 3
  • Administration: Covers core administrative tasks including volume configuration, array management, host connections, third-party integrations, and security protocols. Focuses on best practices for maintaining optimal performance and secure access across the storage environment.
Topic 4
  • Monitoring: Covers the use of Pure1, GUI, and CLI tools to monitor array health, generate reports, and analyze performance and capacity metrics. Includes data reduction ratios, meta forecasting, and proactive capacity planning.
Topic 5
  • Troubleshooting: Covers identification and resolution of configuration errors, performance issues, and replication problems using Pure Storage diagnostic tools and alerts. Includes port configuration and predictive support mechanisms to maintain system reliability.

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Pure Storage Pure Certified FlashArray Storage Professional Sample Questions (Q51-Q56):

NEW QUESTION # 51
An ActiveCluster (AC) FlashArray pair lost connectivity with each other over the replication network. When the pod failover occurred, a single volume in the stretched pod lost connectivity to its host while other volumes in the stretched pod remained available to the host.
What is the most likely cause of the loss of stretched volume connectivity from the host?

  • A. The host initiators were not registered in Purity for the host.
  • B. Fibre Channel (FC) zoning or network access has not been created properly for the host.
  • C. Uniform volume access was not configured for the volume from the host.

Answer: B

Explanation:
ActiveCluster Connectivity Models: In an ActiveCluster environment, hosts can connect to the arrays using either a Uniform or Non-Uniform access model. In a Uniform model, the host has active paths to both FlashArrays in the cluster.
The Failover Scenario: When the replication network between the two arrays fails (a "split-brain" scenario), the Mediator decides which array keeps the pod online (the winner) and which array takes it offline (the loser) to ensure data consistency.
Analyzing the Symptoms:
The pod failed over, meaning one array is now the exclusive servicer for that pod.
Most volumes in that pod stayed online for the host. This proves that the host is correctly registered in Purity (ruling out Option C) and that the general ActiveCluster/Pod logic is functioning.
Only one specific volume lost connectivity.
The Root Cause (Zoning/Access): If a single volume loses connectivity while others do not, it indicates a pathing issue specific to that volume's visibility. In an ActiveCluster failover, if the "winning" array does not have a physical path to the host for that specific volume (due to missing FC Zoning or Ethernet VLAN tagging on the switches), the host will lose access once the "losing" array drops its paths.
Why Option A is unlikely: If "Uniform access" (the ability to see both arrays) was the issue, it would typically affect all volumes in the pod equally during a failover, not just a single outlier. The fact that the rest of the volumes remained available suggests the host is configured for uniform access, but the specific network plumbing (zoning) for that one volume's path to the surviving array is missing.
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NEW QUESTION # 52
What happens when you demote the original source pod?

  • A. It saves a temporary copy of the source pod content in the eradication bin.
  • B. Replication is reversed.
  • C. Replication is paused.

Answer: B

Explanation:
ActiveCluster and Pod Roles: In a Pure Storage ActiveCluster or ActiveDR environment, a Pod is a management container for volumes. To move workloads or perform a planned failover between two arrays, you use the Promote and Demote commands.
The Reversal Process: When you have two pods in a replication relationship (Source and Target), data flows from the Promoted (Active/Source) pod to the Demoted (Passive/Target) pod.
When you Demote the current source, it transitions from a "read-write" state to a "read-only" (passive) state.
If the other pod in the pair is then Promoted, Purity automatically intelligently reverses the direction of replication. The array that was previously receiving data now begins sending incremental updates back to the original source.
Continuous Protection: This design ensures that you don't have to manually tear down and recreate replication schedules every time you switch production sites. The system tracks the metadata changes and ensures that only the delta (changed blocks) are sent in the new direction.
Why Option C is incorrect: If replication were simply paused, the two sites would quickly drift out of sync, making it impossible to fail back without a full baseline resync.
Why Option A is incorrect: Demoting a pod does not delete any data; it simply changes the access characteristics and replication role. The data remains fully intact on the storage media.


NEW QUESTION # 53
The Load Meter in the Pure1 GUI shows a consistently high workload, averaging a 90% load over the past hour. The array also has high space usage of 85%.
What is the expected result?

  • A. The FlashArray will limit Space Reclamation and Space Reporting on array.
  • B. The FlashArray will prioritize Space Reclamation so array does not exceed 90% full.
  • C. The FlashArray will use QoS to limit impact of incoming IO to verify system processes are functioning for health of array.

Answer: C

Explanation:
Understanding the Load Meter: The Load Meter in Pure1 and Purity represents the percentage of the array's performance capacity currently being utilized. It takes into account CPU cycles, back-end metadata processing, and front-end I/O. A 90% load means the controllers are nearly saturated.
The Impact of Capacity on Load: As a FlashArray fills up (specifically beyond 80%), the Purity Operating Environment must work harder to find and organize free space. This "Garbage Collection" (GC) process becomes more intensive, which consumes more controller resources and contributes to a higher Load Meter reading.
Internal System QoS: To ensure the stability and integrity of the storage, Pure Storage uses Internal Quality of Service (QoS). This is an "always-on" feature that prioritizes critical system processes (like metadata updates, internal health checks, and data protection) over incoming host I/O during periods of extreme resource contention.
Graceful Performance Pacing: When the load is consistently high (like the 90% described), Purity may introduce small amounts of latency to the host I/O (often seen as "Wait" or "Queue" time) to "pace" the workload. This prevents the controllers from reaching a 100% "locked" state, ensuring the array remains responsive and healthy even under heavy pressure.
Why Option C is incorrect: While the array needs to reclaim space, prioritizing Space Reclamation (a background task) during a 90% performance load would likely push the controllers to 100% load, causing significant latency spikes or instability for the host. The system must balance reclamation with active production I/O.


NEW QUESTION # 54
RFC2307 enables cross-protocol support for which two protocols?

  • A. S3, SMB
  • B. NFS, SMB
  • C. NFS, S3

Answer: B

Explanation:
Understanding RFC2307: RFC2307 is an extension to the LDAP (Lightweight Directory Access Protocol) schema that allows for the storage of Unix-style information (POSIX attributes) within a directory service, most commonly Microsoft Active Directory. These attributes include things like uidNumber (User ID), gidNumber (Group ID), and login shells.
The Cross-Protocol Challenge: In a Unified Storage environment where the same data needs to be accessed by both Windows clients (using the SMB protocol) and Linux/Unix clients (using the NFS protocol), the storage array must be able to map a Windows Security Identifier (SID) to a Unix UID/GID.
How Pure Uses It: When an administrator enables RFC2307 support in Purity//FA File Services, the FlashArray can query Active Directory to retrieve these POSIX attributes. This creates a 1:1 mapping between the Windows user and the Unix identity.
The Benefit: This mapping ensures that a user can create a file via SMB and another user (or the same user on a different system) can access or modify that same file via NFS while maintaining consistent permission enforcement and ownership records. Without this (or a similar mapping service like NIS or local files), cross-protocol access often results in permission "Mapping" errors or files being owned by "nobody."


NEW QUESTION # 55
How should an administrator configure initiator-to-target connections for zones with multiple initiators?

  • A. Multiple initiator to multiple target zone sets
  • B. Single initiator to multiple target zone sets
  • C. Single target to multiple initiator zone sets

Answer: B

Explanation:
Zoning Best Practices: In a Fibre Channel SAN environment, zoning is used to partition the fabric to ensure that initiators (hosts) can only see the targets (FlashArray ports) they are intended to communicate with.
The "Single Initiator" Rule: Pure Storage, following industry-standard SAN best practices (and Cisco/Brocade recommendations), strongly advises using Single Initiator Zoning. This means each zone should contain exactly one initiator (HBA port) and one or more targets (FlashArray ports).
Why Single Initiator to Multiple Targets (Option B)?:
Isolation: This prevents "Initiator-to-Initiator" communication. If multiple initiators are in the same zone, they may attempt to communicate with or probe each other (Registered State Change Notifications - RSCNs), which can cause host instability, driver timeouts, or discovery issues.
Troubleshooting: It simplifies troubleshooting. If a port is experiencing CRC errors or flapping, the impact is isolated to that specific host's zone rather than affecting a broad "group" zone.
Efficiency: When a target port changes state (e.g., during a controller reboot), the switch sends an RSCN. In a single-initiator zone, only that specific host is notified. In a multi-initiator zone, every host in the zone is interrupted to process the notification, even if they aren't using the port that changed.
Target Selection: While the zone should have only one initiator, it can (and should) include multiple target ports from the FlashArray (usually one port from CT0 and one from CT1 for the same fabric) to provide path redundancy and allow the host's MPIO software to manage failover.


NEW QUESTION # 56
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