For FlashArray//XL, which PCIe card slot is reserved for control upgrades?

FlashArray//XL models are designed with 9 PCIe slots per controller, providing ample connectivity options for various components. Slot 5 is specifically reserved for non-disruptive upgrade (NDU) procedures, ensuring that controller upgrades can be performed without impacting system availability. This slot allocation is part of the system's design to facilitate seamless upgrades and maintain operational continuity.