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186. Frage
A customer would like to consolidate their SAS shelves and wants to evacuate multiple shelves in parallel. What is a prerequisite for this procedure?
Antwort: A
Begründung:
To evacuate multiple shelves in parallel safely during consolidation, the array's usage must be sufficiently low (under 60%) to ensure enough free capacity for data movement.
187. Frage
A FlashArray//XR2/3 has an Ethernet mezzanine (EMEZZ), what are the interface names of the ports on the mezzanine?
Antwort: C
Begründung:
On a FlashArray//XR2 or //XR3 controller equipped with an optional Ethernet Mezzanine (EMEZZ) card, the additional ports are enumerated as ETH6, ETH7, ETH8, and ETH9.
The port numbering logic on these controllers follows a strict sequence:
ETH0 and ETH1: Fixed onboard 1GbE Management ports.
ETH2 and ETH3: Fixed onboard 10/25GbE ports (often used for replication or iSCSI).
ETH4 and ETH5: Reserved or used by the first PCIe slot expansion (if populated with Ethernet).
ETH6 through ETH9: Assigned to the Ethernet Mezzanine (EMEZZ) slot.
The EMEZZ is a specific internal slot distinct from the standard PCIe risers. When populated, the Purity operating system reserves the eth6-eth9 block for these interfaces. Options B and C are incorrect because they describe port ranges that would typically be assigned to PCIe expansion cards in Slot 1 or Slot 2 (e.g., eth10+), or they simply do not align with the hardcoded enumeration logic of the R2/R3 controller architecture. Correct identification of these interfaces is critical for configuring link aggregation (LACP) or assigning iSCSI IPs during the initial setup.
188. Frage
What command should the Implementation Engineer run to configure a proxy?
Antwort: B
Begründung:
For a Pure Storage FlashArray to fully utilize its predictive support capabilities, it must maintain a persistent, secure outbound connection to the Pure1 cloud infrastructure. This allows the array's Callhome Connection Manager (CCM) to transmit telemetry data, hardware alerts, and heartbeat signals. However, in many enterprise environments, storage management networks do not have direct, unfiltered access to the public internet. Instead, all outbound HTTP/HTTPS traffic must be routed through a corporate proxy server.
To facilitate this, the Implementation Engineer must configure the FlashArray to tunnel its Call Home traffic through the customer's proxy. The officially supported Purity CLI command to achieve this is purearray setattr --proxy https:// < proxy_address > : < port > .
By executing this command, the system modifies its global network attributes. Purity immediately updates the internal routing daemon, instructing it to encapsulate all outgoing Pure1 management traffic and direct it to the specified proxy IP or hostname on the designated port (e.g., port 8080 or 3128). Options B, C, and D are fabricated commands that do not exist within the Purity CLI framework. Once the proxy is set, the engineer should always validate the configuration by running purearray test phonehome to ensure the proxy is properly allowing the traffic to pass through to the Pure Storage cloud endpoints.
189. Frage
An Implementation Engineer is performing an inventory for an NDU from a FlashArray//X70R2 to a FlashArray//X70R4 and discovers that a complete FlashArray//X70R4 was shipped instead of an NDU kit. What is the minimum hardware the Implementation Engineer should use from the new array to complete the NDU?
Antwort: A
Begründung:
In a Non-Disruptive Upgrade (NDU) scenario, the goal is to replace the compute and control logic of the array while preserving the existing data and minimizing hardware waste. When upgrading from a FlashArray//X70R2 to an //X70R4, the primary components that change are the Controllers themselves. The chassis, power supplies, and NVRAM modules (depending on the specific generation jump and health) can often be reused or are not the primary target of the replacement in a standard NDU kit.
If a complete array is shipped by mistake (often called a "greenfield" or "net-new" array shipment) instead of the specific upgrade kit, the engineer should only extract and use the Controllers from the new shipment. The existing chassis and its passive components (like the midplane and power supplies) are already racked, cabled, and functioning. Swapping the chassis or power supplies would turn the operation into a disruptive migration or a much more complex "chassis replacement" procedure, which is unnecessary for a controller upgrade.
Therefore, the engineer should unpack the new controllers, perform the NDU procedure to replace the old controllers one by one, and leave the rest of the new hardware (chassis, empty slots, etc.) as spare or return it. This approach adheres to the NDU procedure of swapping the "brains" of the storage while keeping the "body" (chassis and drives) intact.
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190. Frage
Once the new Purity firmware has been installed using the pureinstall command, what step is required to commit the new version?
Antwort: A
Begründung:
During a Hardware Non-Disruptive Upgrade (HWNDU) or an offline controller reimaging process, the Implementation Engineer uses the pureinstall utility via the local KVM console to write a new Purity//FA operating system image onto the hardware.
The FlashArray controller boot drives are designed with an A/B partition structure to ensure safe upgrades and easy rollbacks. When the pureinstall < version > .ppkg command successfully completes its execution, it has merely unpacked and written the new Purity OS onto the inactive, alternate boot partition. It does not automatically switch the live operating system.
To finalize the installation and actually boot the controller into the newly installed Purity version, the Implementation Engineer must manually issue a reboot command (typically by typing sudo reboot or simply reboot at the setup prompt).
Upon rebooting, the controller's BIOS will target the newly updated partition, load the fresh Purity kernel, and initialize the system on the new version. Selecting Option B (rebooting the array) is entirely incorrect, as taking down both controllers simultaneously would cause a complete storage outage, violating the fundamental principles of a non-disruptive upgrade. Logging out (Option C) merely closes the console session but leaves the controller running the old OS partition.
191. Frage
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