Users Guide

Overview
The PowerEdge Express Flash Non-Volatile Memory Express (NVMe) Peripheral Component Interconnect Express (PCIe) Solid State
Device (SSD) 2.5 inch small form factor (SFF) is a high performance storage device designed for solutions requiring low latency, high I/O
operations per second (IOPS), and enterprise class storage reliability and serviceability. The NVMe PCIe SSDs are oered as a Triple-Level
Cell (TLC) NAND ash technology with a high-speed PCIe 3.0 compliant interface. The high-speed PCIe 3.0 compliant interface helps
improve performance for I/O bound solutions.
NVMe is the standardized, high-performance host controller interface that uses solid-state devices on a PCI Express bus (PCIe SSDs).
Topics:
• NVMe PCIe SSD architecture
• Supported operating systems for NVMe PCIe SSD
NVMe PCIe SSD architecture
The NVMe PCIe SSD solution provides the PCIe connectivity for up to 24 NVMe PCIe SSDs in selected systems.
The NVMe PCIe 2.5 inch SFF SSDs are available on selected PowerEdge systems starting from P4500 and P4600.
In PowerEdge systems, multiple solutions are used to connect to a PCIe SSD backplane, allowing connectivity for up to 24 NVMe PCIe
SSDs.
NOTE
: To determine the maximum number of NVMe PCIe SSDs supported on your system, and for more information on extender
adapters, see the system-specic Owner’s Manual at Dell.com/support/manuals.
PCIe interface
The SSD controller used on the NVMe PCIe SSD has a PCIe Generation 3 (8 GT/s) interface. The interface is a PCIe x4 lane width for a 16-
channel ash memory controller, and is used to transmit or receive storage interface commands between the host and the NVMe PCIe
SSD.
NVMe PCIe SSD 2.5 inch SFF features
The following topics describe the dierent features of the NVMe PCIe SSD.
Hot swap
NOTE
: To check if your operating system supports NVMe PCIe SSD hot swap, see Supported operating systems for NVMe PCIe
SSD.
The NVMe PCIe SSD supports orderly hot swap allowing you to add or remove a device without halting or restarting the system in which
the device is installed.
The supported NVMe PCIe SSD hot swappable functions are dened below:
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