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| Section | Weight | Objectives |
|---|---|---|
| FlashArray Files | 12% | - File access and sharing - File system management and optimization - File system deployment and configuration |
| Data Protection | 18% | - Data encryption and security - Replication and disaster recovery - Snapshot technology and management |
| Troubleshooting | 20% | - Resolving connectivity problems - Upgrade and maintenance procedures - System error handling and recovery - Diagnosing performance issues |
| Administration | 30% | - Volume and host provisioning - System configuration and management - Network setup and integration - User and access control |
| Monitoring | 20% | - Performance monitoring and analysis - Alert management and reporting - Pure1 monitoring and analytics |
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NEW QUESTION # 31
Refer to the exhibit:
What is the most likely cause of system space in this capacity graph?
Answer: C
Explanation:
Analyzing the Graph: The provided capacity graph shows a sharp, vertical drop in Unique and Shared space (the teal/green sections) at approximately 10:45. Simultaneously, there is a massive spike in System space (the grey shaded area).
The "System" Space Spike: In Purity, when a volume is deleted and eradicated, the data isn't physically wiped from the flash modules instantly. Instead, the logical references are removed, and the blocks are moved into a "Pending Reclamation" state. In older versions of Purity reporting (or specific views), this pending work is often categorized under System space until the background Garbage Collection (GC) process can physically reclaim it.
The Decay Curve: Notice the grey "System" area gradually tapers down over the following hours (from 11:00 to 14:00). This is the visual representation of the array's Garbage Collection engine working in the background to physically free up those blocks.
Why Option C is incorrect: If SafeMode were enabled, the space would not move into "System" space in this manner; it would remain locked in the Snapshots or Destroyed bucket for the duration of the retention period, preventing the graph from dropping at all.
Why Option A is incorrect: If space reclamation stopped working, the grey "System" area would stay flat and would not decay over time. The fact that it is trending downward proves that reclamation is actively processing the deleted volume.
NEW QUESTION # 32
An application engineer reports seeing high latency in their application running in a VMware instance.
What is the best method to determine the source of the latency?
Answer: C
Explanation:
Within the Pure Storage ecosystem, the absolute best method to troubleshoot and pinpoint the exact source of VMware latency is to use VM Analytics (VM Topology) in Pure1.
VM Analytics is a feature built directly into Pure1 that maps the entire data path from the virtual machine all the way down to the physical FlashArray. It provides a visual topology map detailing the VM, Virtual Disk, ESXi Host, Datastore, and FlashArray Volume. By analyzing performance across this topology, an administrator can instantly identify exactly where the latency is being introduced. For example, you can clearly see if the latency spikes at the ESXi host layer (indicating compute contention) or the network layer, even if the FlashArray volume itself is reporting sub-millisecond latency at the storage level.
Here is why the other options are incorrect:
Analyze load metrics in Pure1 for each volume in the user's data path (C): Looking exclusively at volume-level metrics on the FlashArray will only tell you the latency from the array's perspective. If the latency is being caused by an overloaded ESXi host CPU or a saturated SAN fabric, the FlashArray metrics will look perfectly healthy, and you will fail to identify the source of the problem.
Analyze performance charts in vSphere for CPU, Memory, Network, and Storage Path for the user's data path (B): While vCenter performance charts are useful, they often lack deep storage-array-level context. Pure1's VM Topology is the "best" method because it correlates the vSphere stack data with the native FlashArray telemetry data in a single, unified view, making full-stack root cause analysis much faster.
NEW QUESTION # 33
A storage administrator needs to determine what actions were taken on the array by the previous shift and is only able to access the FlashArray via CLI.
Which command provides that information?
Answer: A
Explanation:
Understanding the Audit Log: In Purity, accountability and security are maintained through the Audit Log. This log captures every administrative action taken on the array, whether through the GUI, CLI, or REST API. It records who performed the action, what the action was (e.g., volume creation, host deletion), and when it occurred.
The CLI Command: The command pureaudit list is the specific CLI tool used to display these logs. By default, it lists events in chronological order, making it the perfect tool for an administrator to review "shift change" activities.
Command Options: * pureaudit list can be filtered with flags like --user to see actions by a specific admin, or --start-time and --end-time to narrow down the "previous shift" window.
Why Option C is incorrect: puremessage (accessed via puremessage list) is used to view Alerts and Notifications generated by the system (e.g., a failed drive or a high-temperature warning). While it tells you what the array did, it does not track what users did.
Why Option A is incorrect: This is not a valid Purity command syntax. Purity does not use double-dashes to "pipe" or combine independent commands like pureaudit and puremessage in that manner.
NEW QUESTION # 34
What is the Pure Storage recommended Maximum Transmission Unit (MTU) size for the replication ports on a FlashArray?
Answer: B
Explanation:
Understanding MTU: The Maximum Transmission Unit (MTU) defines the largest size of a packet or frame that can be sent in a single network transaction. The standard Ethernet MTU is 1500 bytes. Anything larger than 1500 bytes is referred to as a Jumbo Frame.
Replication Efficiency: Replication involves moving large amounts of data between arrays. Using standard 1500-byte frames results in higher overhead because the CPU must process a larger number of headers for the same amount of data. By increasing the MTU, the FlashArray can pack more data into each frame, reducing CPU interrupts and improving overall throughput.
The Pure Recommendation: Pure Storage specifically recommends an MTU of 9000 for both iSCSI and Replication traffic. This is the industry standard for Jumbo Frames that balances efficiency with compatibility across most enterprise-grade switches.
Configuration Requirements: It is critical to remember that MTU must be configured end-to-end. For an MTU of 9000 to work on the replication ports:
The FlashArray replication ports must be set to 9000.
The network switches along the path (and any routers/ISLs) must support and be configured for at least 9000.
The target array's replication ports must also be set to 9000.
Why 9216 (Option A) is incorrect: While some switches support a "Baby Giant" or slightly larger MTU like 9216 to account for VLAN tagging overhead, Pure's internal and best practice documentation specifically points to 9000 as the standard setting for the array's interface.
NEW QUESTION # 35
What is indicated by the Fibre Channel (FC) hosts in the following output?
Answer: B
Explanation:
Purity Active/Active Architecture: Pure Storage FlashArrays use an Active/Active controller architecture. Under normal operating conditions, both controllers (CT0 and CT1) are healthy and independently serve I/O through their respective physical Fibre Channel ports.
The Scenario (Controller Failover): The output provided shows that the host initiator is seeing target WWNs associated with both CT0 and CT1, but the "Target" column indicates they are all being reached via the paths currently managed by one controller or through a specific failover mechanism.
Virtual WWNs and Transparency: In a controller failover or maintenance scenario, Pure Storage utilizes a feature where the WWNs of the "failed" or "offline" controller are logically moved to or presented by the "surviving" controller. This ensures that the host's MPIO (Multi-path I/O) software does not see a permanent "Path Down" error for those specific WWNs, but rather a transition.
Analyzing the Output: When you see CT1 port WWNs (e.g., 52:4A:93:78:55:2D:E3:10) appearing in the connectivity table in a way that implies they are being routed or presented through the physical infrastructure of CT0, it indicates that the array is in a state where one controller is assuming the identity/connectivity of the other. This is a key troubleshooting indicator that the array is likely undergoing a controller reboot, a Purity upgrade, or has experienced a controller hardware failure.
Why A and B are incorrect: * Option A: Multipathing software on the host handles path failures, but it wouldn't cause the array to report WWNs in this specific "cross-presented" manner in a connectivity log.
Option B: If there were a total outage on CT1 without this presentation mechanism, the paths would simply show as "Disconnected" or be missing from the initiator's view entirely.
NEW QUESTION # 36
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