What is the required PSU wattage for a FlashArray// X70R2/R3 or X90R2/R3 array?

The Pure Storage FlashArray//X70R2/R3 and //X90R2/R3 models are built on a 3U chassis that is equipped with four redundant 1600W Power Supply Units (PSUs). This configuration provides N+1 redundancy and ensures sufficient power for the high-performance controllers and the full complement of DirectFlash Modules that these enterprise-grade models support. The 1600W rating is a standard hardware specification for these specific chassis generations to meet their operational power requirements under full load.

A. 1200W: This wattage is insufficient for the power requirements of the //X70 and //X90 R2/R3 chassis and is not the specified PSU for these models.

B. 1300W: This is not a standard PSU wattage used in the specified FlashArray//X R2/R3 models.

1. Pure Storage, Inc. (2023). FlashArray Hardware Guide for //X R2, R3, and R4 Models.

Reference: In the section "Chassis Components," under the subsection "Power Supply Units," the guide specifies for the 3U chassis (used by //X50, //X70, //X90 models): "The chassis contains four 1600W power supply units (PSUs)." This directly confirms the 1600W rating for the models in the question.

2. Pure Storage, Inc. (2023). FlashArray Site Planning Guide.

Reference: The "Power Specifications" section for the FlashArray//X70R3 and //X90R3 lists the power supply rating. The tables confirm that the installed PSUs are rated at 1600W each, providing a total of 6400W of potential power across the four units.