Pass the Pure Storage FAIS FlashArray-Implementation-Specialist Questions and answers with ValidTests

The FlashArray//XL models are designed to fit into a 5U rack space, which is equivalent to 5 rack units. Each rack unit (U) is 1.75 inches in height, so a 5U chassis would be 8.75 inches tall. However, the FlashArray//XL chassis is designed to be 5U in height, providing a compact and efficient form factor for enterprise storage needs.

The upgrade kit for an //X to //XL Non-Disruptive Upgrade (NDU) includes 2 QSFP cables, 3 Mellanox InfiniBand cards, and 20 DirectFlash Modules (DFMDs) to support new hardware connectivity and capacity requirements.

When replacing SAS chassis data packs with DirectFlash Modules (DFMs) after an upgrade to //X20R3-EMEZZ, a DFM Swing Shelf is required to facilitate data evacuation and migration during the transition.

FC cards from an M-series array can be reused in XR2 or XR3 controllers, allowing hardware continuity during controller upgrades.

Adding a DirectFlash Shelf with sufficient temporary extra capacity (63TB) allows data to be evacuated from the smaller 22TB packs during the swap, enabling consolidation withoutreducing array usage beforehand.

The purehost iobalance --check command validates whether I/O is balanced evenly across initiators, helping ensure optimal performance and distribution.

Fibre Channel (FC) I/O cards are compatible across all FlashArray models, providing consistent SAN connectivity regardless of array generation.

On an XR2/3 array, a 4-port Fibre Channel card installed in slot 1 is assigned interface names FC4 through FC7, continuing the numbering sequence from other installed FC ports.

FlashArray//XCR4 arrays are shipped with 32Gb Fibre Channel (FC) SFPs by default. These 32Gb FC SFPs are capable of supporting 64Gb speeds, which can be enabled via a firmware upgrade. This allows the array to leverage higher-speed FC connections as needed.

The FlashArray//XL supports up to four DirectFlash Shelves (DFS), each providing up to 1.9PB of effective capacity, enabling a total effective capacity of up to 7.6PB when fully expanded.