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| Certification Vendor: | Pure Storage |
|---|---|
| Exam Name: | Pure Certified FlashArray Storage Professional Exam |
| Exam Number: | FlashArray-Storage-Professional |
| Available Languages: | English |
| Real Exam Qty: | 60-75 |
| Related Certifications: | Pure Certified FlashArray Architect Professional Pure Certified FlashArray Implementation Professional |
| Exam Duration: | 120 minutes |
| Exam Format: | Multiple Choice (single/multiple correct answers) |
| Exam Price: | $129 USD |
| Passing Score: | 70% |
| Certificate Validity Period: | 2 years |
| Recommended Training: | Pure Academy - FlashArray Storage Professional Prep |
| Exam Registration: | ExamStudio Registration Pure Storage Certification Portal |
| Sample Questions: | Pure Storage FlashArray-Storage-Professional Sample Questions |
| Exam Way: | Online proctored or onsite at authorized test centers |
| Pre Condition: | Recommended: 12–24 months of experience with Pure Storage FlashArray systems; no mandatory prerequisite exam |
| Official Syllabus URL: | https://www.purestorage.com/services/certifications/flasharray-storage-professional.html |
>> FlashArray-Storage-Professional Vorbereitung <<
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53. Frage
A FlashArray//XL is used for NVMe-RoCE services. The array has been lightly loaded and has performed as expected. A new workload has been added to the array, which is within the array's performance envelope. The change has resulted in extreme latency and service outages for all workloads utilizing NVMe-RoCE.
Which misconfiguration is this a symptom of?
Antwort: A
Begründung:
Requirement for Lossless Ethernet: NVMe over RoCE (RDMA over Converged Ethernet) requires a lossless fabric to function correctly. Unlike standard iSCSI which uses TCP for error recovery, RoCE assumes the network will not drop packets. If the network is "lossy," performance degrades significantly.
The Role of PFC: Priority Flow Control (PFC) (IEEE 802.1Qbb) is the specific mechanism used in Data Center Bridging (DCB) to provide flow control on a per-priority basis. It allows the switch to send a "pause" frame to the sender when buffers are full, preventing packet drops.
Symptom Analysis: In the scenario provided, the array itself is not overloaded ("within the performance envelope"). However, the addition of a new workload increased traffic to the point where buffer congestion occurred. Because PFC was likely misconfigured (either on the FlashArray ports, the network switches, or the host NICs), the network dropped packets instead of pausing traffic. This leads to "go-back-N" retransmissions and massive latency spikes that affect all workloads sharing that fabric.
Pure Storage Best Practices: Pure Storage documentation for NVMe-RoCE emphasizes that PFC must be enabled and consistent across the entire path. If there is a mismatch in PFC configuration, the resulting packet loss will cause the symptoms described: extreme latency and potential service outages.
54. Frage
What should an administrator configure when setting up device-level access control in an NVMe/TCP network?
Antwort: C
Begründung:
In any NVMe-based storage fabric (including NVMe/TCP, NVMe/FC, and NVMe/RoCE), the standard method for identifying endpoints and enforcing device-level access control is the NQN (NVMe Qualified Name).
The NQN serves the exact same purpose in the NVMe protocol as an IQN (iSCSI Qualified Name) does in an iSCSI environment, or a WWPN (World Wide Port Name) does in a Fibre Channel environment. It is a unique identifier assigned to both the host (initiator) and the storage array (target subsystem). When setting up access control on a Pure Storage FlashArray, the storage administrator must capture the Host NQN from the operating system and configure a Host object on the array with that specific NQN. This ensures that only the authorized host can discover, connect to, and access its provisioned NVMe namespaces (volumes).
Here is why the other options are incorrect:
VLANs (A): Virtual LANs are used for network-level isolation and segmentation at Layer 2 of the OSI model. While you might use a VLAN to separate your storage traffic from your management traffic, it is a network security measure, not a device-level access control mechanism for the storage protocol itself.
LACP (C): Link Aggregation Control Protocol (LACP) is a network protocol used to bundle multiple physical network links into a single logical link for redundancy and increased bandwidth. It has nothing to do with storage access control or mapping volumes to hosts.
55. Frage
What is unified storage for Pure?
Antwort: C
Begründung:
Definition of Unified Storage: In the storage industry, "Unified Storage" refers to a platform that can natively serve both Block-level storage (accessed via protocols like Fibre Channel, iSCSI, or NVMe-oF) and File-level storage (accessed via protocols like NFS or SMB) from a single pool of capacity and under a single management interface.
Pure Storage Implementation (FA File): Pure Storage achieved unified storage on the FlashArray through the introduction of Purity//FA File Services. Unlike traditional unified storage that often required a "gateway" or separate hardware "heads," Pure's implementation runs natively on the FlashArray controllers.
Shared Resources: On a unified FlashArray, the global storage pool is shared between volumes (Block) and file systems (File). All of Pure's core data services-such as deduplication, compression, and SafeMode snapshots-apply globally across both block and file data.
Protocol Diversity: While Option A mentions NFS and SMB, those are strictly File protocols. Option C mentions iSCSI and FC, which are strictly Block protocols. Only Option B correctly identifies the combination of Block and File, which defines the "Unified" architecture of the FlashArray.
56. Frage
A customer is managing a VMware environment and has recently copied a snapshot from a Pure Storage array to a new volume. When attempting to mount this volume on a VMware virtual machine, the operation fails.
How should this be resolved?
Antwort: A
Begründung:
VMFS UUID Conflict: When you create a volume from a snapshot on a FlashArray, the data is a block-for-block copy of the original. This includes the VMFS metadata and the unique identifier (UUID) of the datastore.
ESXi Protection Mechanism: When an ESXi host sees a volume that contains a VMFS signature identical to one already mounted (or one it has seen before but on a different device ID), it flags the volume as a "snapshot." To prevent data corruption or VM identity conflicts, VMware will not automatically mount this "duplicate" volume.
The Resignaturing Process: By choosing to Resignature the volume (via the "Mount Datastore" wizard in vCenter or the ESXi CLI), VMware assigns a new, unique UUID to the VMFS volume. This allows the host to treat it as a distinct, independent datastore.
Why Option B is incorrect: Reformatting the volume would indeed allow it to be mounted, but it would destroy all the data you just copied from the snapshot, defeating the purpose of the operation.
Why Option C is incorrect: While there are advanced settings in VMware (like LVM.enableResignature), they don't solve the issue of the operation "failing" during a standard mount attempt; they simply change how the host behaves. Resignaturing is the standard, safe, and recommended workflow for mounting snapshot copies in a VMware environment.
57. Frage
A network admin is trying to setup Pure1 access and phone home logging on the array.
What port should the admin ensure is opened for the array?
Antwort: C
Begründung:
Pure1 and Phone Home: Pure1 is a cloud-based management and monitoring platform. For the FlashArray to communicate its health data, performance metrics, and alerts to Pure Storage, it must be able to "Phone Home." The Power of HTTPS: This communication is encrypted and sent via the HTTPS protocol. Consequently, the standard port for HTTPS, TCP 443, must be opened for outbound traffic on the management network.
Firewall Configuration: The array controllers initiate an outbound connection to the Pure Storage cloud (specifically to destinations like cloud-connect.purestorage.com). Because it is an outbound-initiated connection, most stateful firewalls will allow the return traffic automatically once port 443 is permitted.
Why Option A is incorrect: Port 22 (SSH) is used for secure shell access to the array's CLI. While essential for local administration, it is not used for the automated Phone Home or Pure1 telemetry data stream.
Why Option B is incorrect: Port 8117 was historically used for the "Remote Assist" tunnel in older Purity versions. However, even for Remote Assist, modern Purity versions have transitioned to using port 443 to simplify firewall rules for customers. It is not the standard port for the general Phone Home/Pure1 logging service.
Verification: An administrator can verify connectivity by running the purearray test phonehome command in the CLI. If port 443 is blocked, the test will fail with a connection timeout.
58. Frage
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