Highly Available NVMe-oF on RHEL 9 Tech Guide

The Highly Available NVMe-oF on RHEL 9 tech guide will instruct the reader on how to configure a Highly Available (HA) NVM Express over Fabrics (NVMe-oF) cluster using DRBD® 9 from LINBIT® and the Pacemaker cluster stack on Red Hat Enterprise Linux (RHEL) 9.

NVMe-oF is the concept of connecting to a remote NVM Express (NVMe) device over some network transport. Different connection media, or fabrics, sometimes have their own names such as NVMe over Fibre Channel (FC-NVMe) and NVMe over InfiniBand (NVMe/IB), but the concept can be generically referred to as NVMe-oF.

NVMe-oF enables low latency connections from client systems to storage servers with internal NVMe devices known as NVMe targets creating an end-to-end NVMe storage solution. However, using NVMe-oF to connect client systems to storage servers containing more traditional — non-NVMe — storage will also benefit from using the lower latency NVMe protocol over the wire.

Using LINBIT’s DRBD for synchronous replication of NVMe devices with the Pacemaker cluster stack for cluster resource management makes building active/passive HA NVMe target clusters possible using open source software and commercial off-the-shelf hardware.

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Matt Kereczman

Matt Kereczman

Matt Kereczman is a Solutions Architect at LINBIT with a long history of Linux System Administration and Linux System Engineering. Matt is a cornerstone in LINBIT's technical team, and plays an important role in making LINBIT and LINBIT's customer's solutions great. Matt was President of the GNU/Linux Club at Northampton Area Community College prior to graduating with Honors from Pennsylvania College of Technology with a BS in Information Security. Open Source Software and Hardware are at the core of most of Matt's hobbies.

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