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How to Deploy a Self-Hosted Lustre Cluster as an AWS FSx Alternative

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Lustre is an open-source, POSIX-compliant parallel distributed file system widely used for HPC, machine learning, and large-scale data workloads, and serves as the technology behind AWS FSx for Lustre. Unlike the managed AWS offering, a self-hosted Lustre cluster avoids per-TiB pricing and vendor lock-in by running on dedicated Linux servers. A typical self-hosted setup consists of one Metadata Server and two Object Storage Servers, with clients communicating directly to both over the LNET protocol for parallel I/O. The deployment requires a Whamcloud-patched kernel on Enterprise Linux 8 systems, with kernel pinning essential to prevent routine OS updates from breaking the cluster. The guide also covers advanced configuration including striping, high availability via Pacemaker, Prometheus and Grafana monitoring, and migration paths away from FSx.

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