When accessing the FlashArray GUI, which management IP address is recommended for use?
A Pure Storage FlashArray is a highly available, dual-controller system. During the initial puresetup process, the Implementation Engineer assigns three distinct management IP addresses to the system: one physical IP for Controller 0 (ct0), one physical IP for Controller 1 (ct1), and one Virtual Management IP (VIP or vir0).
According to official Pure Storage administration and implementation best practices, users should always connect to the GUI, CLI, and REST API using the Virtual Management IP. The Purity operating system utilizes an active/standby management plane. The VIP is designed to automatically float and bind itself to whichever controller is currently acting as the Primary node for management services.
If an administrator points their browser or SSH client directly to a physical controller IP (like CT0) and that controller happens to be the secondary node, they will either be redirected to the VIP, restricted to read-only access, or lose connection entirely if that specific controller is rebooting during a non-disruptive upgrade (NDU). By consistently using the Virtual Management IP, the customer ensures seamless, uninterrupted access to the array's administrative interfaces regardless of the underlying hardware state or active controller role.
Which PCIe slot must be used for a SAS HBA on R4B revision controllers?
While modern FlashArrays (like the XR4 and XL series) primarily use NVMe-oF/RoCE for backend connectivity, specific configurations or legacy support scenarios may still require a SAS HBA (Serial Attached SCSI Host Bus Adapter), for example, when connecting to older SAS-based expansion shelves during a migration or hybrid configuration.
For R4B revision controllers (a specific hardware revision of the Gen 4 controller), the strict hardware addressing map requires that any SAS HBA be installed in PCIe Slot 1.
Slot 1 provides the specific PCIe lane routing and BIOS interrupts required for the legacy SAS controller to be recognized and function without conflicting with the native NVMe fabric.
Installing the card in Slot 0 (typically reserved for RoCE/Ethernet backend) or Slot 4 would likely result in the card being ignored by Purity or causing boot errors due to resource conflict.
Which PCIe slot supports 4-port FC cards on FlashArray//XL?
On the FlashArray//XL, the 4-port Fibre Channel (FC) cards are specifically supported in Slot 8 (and typically Slot 4 depending on configuration depth). The FlashArray//XL chassis (5U) utilizes a significantly different PCIe bus layout compared to the standard 3U FlashArray//X series. While the //X series typically uses Slot 0 or Slot 2 for host connectivity, the //XL architecture reserves the lower-numbered slots (0-3) primarily for backend connectivity (SAS/NVMe-oF) or specific NVRAM modules in certain configurations.
To support the high bandwidth requirements of the 4-port 32Gb FC cards, the //XL chassis provides specific x16 electrical slots. Slot 8 is a designated high-performance slot located in the upper riser section of the controller, making it the correct placement for these dense host I/O cards. Using an incorrect slot such as Slot 2 (often x8 or reserved for other functions in XL) would likely result in the card not being recognized or operating at reduced performance. Therefore, Implementation Engineers must verify the specific 'slot map' for the //XL model in the FlashArray//XL Hardware Guide before seating cards, with Slot 8 being the standard supported location for the 4-port FC option among the choices provided.
What is the rack unit height of a FlashArray//XR2/3?
The FlashArray//XR2 and //XR3 models each occupy 3 rack units (RU) in height. This is specified in the FlashArray//XR2 and //XR3 Site Planning Guide, which outlines the physical requirements for rack space, clearance, and weight for these models.
Which PCIe slot supports 4-port FC cards on FlashArray//XL?
On FlashArray//XL, the PCIe slot 8 supports installation of 4-port Fibre Channel cards, allowing higher port density for SAN connectivity.
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