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NEW QUESTION # 31
What method is recommended for monitoring an array with 3rd party tools such as Prometheus and SolarWinds?
Answer: A
Explanation:
Modern Monitoring Standards: Pure Storage has built its management ecosystem around the REST API. While traditional methods like SNMP and Syslog are supported for basic health alerts, the REST API provides the depth of data (granularity) and the performance required for modern observability platforms like Prometheus, SolarWinds, and Grafana.
The Pure Storage Exporter: For tools like Prometheus, Pure Storage provides an official "Pure Exporter." This exporter acts as a bridge; it queries the FlashArray via the REST API to gather real-time metrics (latency, bandwidth, IOPS, capacity) and converts them into the format Prometheus understands.
SolarWinds Integration: SolarWinds utilizes the Pure Storage REST API to pull performance and health data into its storage monitoring modules. This allows for deep-dive historical analysis that exceeds the capabilities of simple SNMP traps.
Why SMI-S (Option B) is incorrect: SMI-S (Storage Management Initiative Specification) is a legacy industry standard that is largely deprecated in favor of RESTful interfaces. Pure Storage does not focus on SMI-S for modern third-party tool integration.
Why SYSLOG (Option C) is incorrect: Syslog is excellent for Event Logging (e.g., "User Logged In," "Volume Deleted"), but it is a poor choice for Performance Monitoring. You cannot effectively graph IOPS or bandwidth trends using Syslog streams alone.
NEW QUESTION # 32
What is a potential indicator of incorrect configuration on a Pure Storage FlashArray?
Answer: A
Explanation:
Understanding CRC Errors: CRC (Cyclic Redundancy Check) errors occur when the data received at a port does not match the checksum sent by the initiator or switch. In a Pure Storage environment, these are tracked per port and can be viewed via the CLI (purehw list) or the GUI.
Configuration vs. Hardware: While a failing SFP or a damaged fiber cable can cause CRC errors, they are a primary indicator of configuration mismatches in the SAN fabric. Common culprits include:
Port Speed Mismatches: Manually setting a port to 16Gbps when the switch is set to "Auto" or 8Gbps.
Duplex Mismatches: Though rare in modern Fibre Channel, it is a classic Ethernet/iSCSI configuration error.
MTU Mismatches: In iSCSI or NVMe-oF environments, if the FlashArray is configured for Jumbo Frames (MTU 9000) but the switch or host is at MTU 1500, packet fragmentation or CRC-like errors/drops will occur.
Why Option A is incorrect: A blinking status LED on a controller is often part of normal operation (indicating heartbeat or activity). A solid amber LED would be an indicator of a hardware failure, not necessarily a misconfiguration.
Why Option C is incorrect: While latency spikes can be caused by misconfiguration (like incorrect MPIO settings), they are more commonly symptoms of workload changes, "noisy neighbors," or reaching the physical performance limits of the array. CRC errors are a much more specific diagnostic "smoking gun" for port and fabric configuration issues.
Best Practice: When CRC errors are detected, Pure Storage recommends first checking the physical layer (reseating SFPs/cables) and then verifying that the port speed and protocol settings on the FlashArray match the upstream switch configuration exactly.
NEW QUESTION # 33
A storage administrator is configuring a new volume and wants to provision 500GB. If the administrator accidentally selects PB, what will happen?
Answer: C
Explanation:
Pure Storage FlashArrays utilize Thin Provisioning as a core, always-on architectural principle. When a volume is created, the "size" assigned to it is merely a logical limit (a quota) presented to the host; no physical back-end flash capacity is allocated or "pinned" at the time of creation.
Because of this architecture, Purity allows administrators to create volumes that are significantly larger than the actual physical capacity of the array (this is known as over-provisioning). If an administrator accidentally selects PB (Petabytes) instead of GB, the Purity GUI will allow the volume to be created because it is a logical operation that doesn't immediately consume 1PB of physical flash. However, Purity includes a built-in safety check: if the requested logical size is exceptionally large or exceeds the current physical capacity of the array, the GUI will present a warning or confirmation prompt to ensure the administrator is aware of the massive logical size being provisioned before finalizing the change.
Here is why the other options are incorrect:
The volume will be created and space will immediately be used (A): This describes "Thick Provisioning," which Pure Storage does not use. Space is only consumed on a FlashArray when unique data is actually written by the host and processed by the deduplication and compression engines.
The volume will not be created and a warning will be displayed (C): Purity does not strictly forbid over-provisioning. While it warns the user to prevent human error, it does not block the creation of the volume, as over-provisioning is a standard practice in thin-provisioned environments.
NEW QUESTION # 34
An administrator setup replicated snapshots for a protection group last week. They left the local snapshot schedule disabled.
How many snapshots are stored locally on the source array?
Answer: C
Explanation:
Replication Fundamentals: On a Pure Storage FlashArray, replication is a snapshot-based process. To replicate a Protection Group (pgroup) to a target array, the system must first create a point-in-time snapshot of the volumes within that group on the source array.
The "Immutable" Rule: Even if the Local Snapshot Schedule is disabled, the act of replicating requires the existence of a local snapshot to serve as the "base" or "source" for the data transfer. Purity does not stream data directly from the active volume to the wire; it creates a snapshot and then replicates the unique blocks contained in that snapshot.
Accounting for Local Copies: When a Protection Group is configured for replication, every snapshot generated by the Replication Schedule is stored locally on the source array. These snapshots will remain on the source array until they are aged out according to the Local Retention policy (even if the local schedule itself is off, the retention policy still applies to those replicated snapshots).
Visibility: If you navigate to the Protection Group in the Purity GUI, you will see these snapshots listed under the "Snapshots" tab. They are functionally identical to local snapshots, meaning they can be used for local clones or restores without needing to pull data back from the target array.
Why Option A and C are incorrect: * Option A: If 0 snapshots were stored, there would be nothing to replicate.
Option C: While Purity uses the most recent snapshot as a reference for delta-tracking, it keeps the entire history of snapshots defined by your retention policy, not just a single one.
NEW QUESTION # 35
What is the proper procedure for stopping asynchronous replication and in-progress transfers?
Answer: A
Explanation:
According to the official Pure Storage FlashArray Asynchronous Replication Configuration and Best Practices Guide, the proper and immediate method to halt an active, in-progress asynchronous replication transfer is by disallowing the protection group at the target.
When you navigate to the target FlashArray and disallow the specific Protection Group, Purity immediately breaks the replication authorization for that group. If there is an in-progress snapshot transfer occurring at that exact moment, the transfer is immediately stopped, and the partially transferred snapshot data is discarded on the target side.
Here is why the other options are incorrect:
Disabling the replication schedule (B): Toggling the replication schedule to "Disabled" only prevents future scheduled snapshots from being created and sent. It does not kill or interrupt a replication transfer that is already currently in progress.
Removing the volume member from a protection group (A): Modifying the members of a protection group updates the configuration for the next snapshot cycle. It does not actively abort the transmission of the current point-in-time snapshot that the array is already busy sending over the WAN.
NEW QUESTION # 36
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