NVMe

Definition

Non-Volatile Memory Express (NVMe) is a storage access and transport protocol designed specifically for flash and solid-state drives. Unlike legacy SATA/AHCI protocols, NVMe communicates directly with the CPU via PCIe, supporting up to 65,535 I/O queues with 65,536 commands each. This massively parallel architecture delivers sub-20 microsecond latency, sequential throughput exceeding 7 GB/s (PCIe Gen 4), and over 1 million random IOPS.

Written by
Daniel Kovacs

Updated Feb 11, 2026

Ansible

An open-source IT automation tool for configuration management and orchestration, widely used for HPC cluster and data center provisioning.

BeeGFS

A high-performance parallel file system with distributed metadata, simple administration, and built-in high availability for HPC and AI workloads.

Burst Buffer

A fast intermediate storage layer using NVMe SSDs that absorbs I/O bursts between compute nodes and the parallel file system.

Ceph

An open-source distributed storage platform providing unified object, block, and file storage with automatic data distribution and self-healing capabilities.

CXL

Compute Express Link â€” an open interconnect standard enabling high-speed communication and memory sharing between CPUs, accelerators, and memory devices.

Data Lake

A centralized repository storing raw data in its native format at scale, supporting diverse analytics workloads from batch to real-time processing.