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| Section | Objectives |
|---|---|
| Topic 1: Post-Install/Upgrade | - Integrate with existing storage networks - Verify system performance and validate data integrity - Confirm FlashArray meets performance targets - Optimize configuration settings - Establish monitoring baselines |
| Topic 2: Install | - Hardware setup and cabling requirements - Confirm system readiness before production deployment - Validate prerequisites and connect components - Initial configuration and system bring-up procedures |
| Topic 3: Upgrade | - Hardware component swaps and shelf upgrades - Purity upgrade procedures and version management - Controller and drive firmware upgrades |
| Topic 4: Pre-Install | - Evaluate existing workloads and determine upgrade paths - Document pre-flight checks to minimize downtime and risk - Determine if best practices are met for deployment readiness - Prepare migration strategies - Validate site-survey data prior to installation - Identify compatibility requirements - Plan capacity and assess current infrastructure |
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NEW QUESTION # 73
After racking a new FlashArray with one data pack, how should DirectFlash modules be installed?
Answer: C
Explanation:
Proper airflow and thermal management are critical for the reliability of high-density storage arrays.
FlashArray chassis are designed with specific airflow baffles and cooling zones that rely on the drive bays being populated in a specific order.
When installing a new FlashArray with a single data pack (typically 10 drives), the Implementation Engineer must install the DirectFlash Modules starting in bay 0, filling from left to right .
* Bay 0 is typically the leftmost slot (when facing the front of the array).
* Filling slots 0-9 ensures that the first "cooling zone" is properly pressurized, forcing air through the populated modules and the chassis midplane correctly.
* Leaving gaps (e.g., installing in slots 10-19 while 0-9 are empty) can disrupt the airflow path, potentially leading to hotspots or inefficient cooling for the controllers behind the backplane.
* Additionally, the software enumeration of drives often expects contiguous population starting from the lowest index for logical clarity, though cooling is the primary physical constraint.
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NEW QUESTION # 74
On FlashArray//XL, which slots support a 4-port FC card?
Answer: C
Explanation:
During the physical installation and cabling of a Pure Storage FlashArray//XL, an Implementation Engineer must adhere to strict PCIe slot population rules to ensure optimal performance, proper cooling, and backend
/frontend redundancy. The FlashArray//XL utilizes a different chassis layout than the standard //X or //C series, and the supported locations for Fibre Channel (FC) Host Bus Adapters (HBAs) are specific.
According to the FlashArray//XL Port Usage and Definitions hardware matrix, the 4-port 32G/64G Fibre Channel expansion cards are officially supported in PCIe slots 1, 5, and 8 . Other slots on the //XL chassis are strictly reserved for different functionalities. For instance, Slot 0, 4, and 6 are generally prioritized for NVMe
/TCP, DirectFlash Shelf (DFS) connectivity, or hardware non-disruptive upgrade (HWNDU) cards. Installing a 4-port FC card in an unsupported slot (such as Slot 2, which requires special Product Management approval) will trigger hardware configuration alerts, prevent the array from passing its pre-installation hardware_check.
py script, and potentially cause multipathing imbalances.
NEW QUESTION # 75
What is the maximum number of DirectFlash Shelves supported for FlashArray//XL?
Answer: C
Explanation:
The FlashArray//XL currently supports a maximum of 2 DirectFlash Shelves (DFS).
The FlashArray//XL is a high-density, performance-optimized platform housed in a 5U chassis.
Rack Unit Math: According to the FlashArray//XL specifications and site planning guide, the system supports a maximum configuration footprint of 11 Rack Units (11U).
The base controller chassis occupies 5U.
Each DirectFlash Shelf occupies 3U.
Therefore: 5U (Base) + 3U (Shelf 1) + 3U (Shelf 2) = 11U.
Capacity: Because the //XL chassis itself holds 40 DirectFlash Modules (compared to 20 in a standard //X), and each shelf holds 28 modules, a fully populated system with two shelves provides nearly 100 drives of capacity (40 + 28 + 28 = 96 drives). This massive density reduces the need for "daisy-chaining" large numbers of shelves like legacy SAS architectures. Adding a third shelf would push the total height to 14U, exceeding the current platform definition.
NEW QUESTION # 76
A customer would like to consolidate their SAS shelves and wants to evacuate multiple shelves in parallel. What is a prerequisite for this procedure?
Answer: B
Explanation:
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.
NEW QUESTION # 77
What slot does a PCIe SAS card need to be installed in a FlashArray//XR2/3?
Answer: B
Explanation:
On a FlashArray//XR2 or //XR3, if a dedicated PCIe SAS HBA (Host Bus Adapter) is required for external shelf connectivity (expanding beyond the onboard SAS ports), it must be installed in Slot 1.
The PCIe slot prioritization on the FlashArray//X R2/R3 controllers is strictly defined to ensure optimal performance and lane distribution:
Slot 0: Reserved primarily for frontend Host I/O cards (Fibre Channel or iSCSI/Ethernet). This slot usually connects to CPU 0 and offers high bandwidth for host traffic.
Slot 1: Designated as the primary expansion slot for backend connectivity (SAS cards for expansion shelves) or secondary Host I/O if no SAS expansion is needed.
Slot 2: On smaller models (X10/X20), this is often the only host I/O slot, but on the larger X50/X70/X90 chassis, it is used for additional Host I/O.
If an Implementation Engineer installs a SAS card in Slot 0, the system may fail to recognize the shelves correctly or may flag a configuration error, as the Purity software expects backend expansion traffic to route through the bus associated with Slot 1. Therefore, for SAS expansion cards, Slot 1 is the mandatory location.
NEW QUESTION # 78
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