Practical InfiniBand Administration: A Beginner's Guide to High-Performance Networking: RDMA fundamentals, subnet management, and operational workflow

By: Ashford, Corwin

Build InfiniBand fabrics that stay fast, stable, and observable for AI and HPC workloads.

Running InfiniBand at production scale is hard. Physical plant, routing policy, partitions, congestion control, and day two operations all interact. Teams need a practical reference that connects design choices to the counters, commands, and workflows used in real clusters.

Practical InfiniBand Administration provides that reference. It moves from RDMA fundamentals to fabric design and bring up, then into monitoring, troubleshooting, and workload integration with UCX, NCCL, SHARP, Kubernetes, and OpenShift, so you can keep throughput high and variance low.

clear rdma object model, pd qp cq mr, address handles, with a clean qp lifecycle using rdmacmthroughput math operators use, sdr hdr ndr, lanes, mtu, payload efficiency that matches real linkscabling and optics choices, qsfp56 qsfp112 osfp twin port, aoc dac acc, mpo polarity and bend radiusopensm configuration that sticks, routing engines minhop ftree updn torus 2 qos and predictable sweepspartitions and qos in practice, p keys, sl to vl mapping, arbitration that protects storage and control trafficnvidia congestion control deployed safely, policy files, keys, staged rollout, and validation on live clustersadaptive routing and shield, enablement steps with acceptance tests that prove path dispersionib routers for multi subnet scale out, practical design patterns and known limitsfabric design and bring up, spine leaf fat tree planning, oversubscription math, baseline and burn in gatesday 0 to day 2 operations, ibdiagnet ibnetdiscover perfquery ibtracert used as an actionable toolkitfirmware and driver lifecycle, repeatable workflows with mlxfwmanager and mstflinttroubleshooting playbooks, physical faults with symbolerrors and linkdowned, xmitwait analysis, path checks and sweep timingai and hpc integration, ucx and hpc x transport selection, parameters, and a measurement strategy that holds upnccl over infiniband, essential environment variables, topology awareness, and stable channel planssharp collectives offload, setup, orchestration, and verification on both mpi and nccl stacksplatform features, gpudirect rdma with dma buf checks, ipoib connected mode tuning, and practical sysctlsvirtualization with sr iov on connectx, host and hypervisor configuration, and guest level validationkubernetes and openshift patterns, nvidia network operator and doca ofed with a nicclusterpolicy that matches the fabricrdma shared device plugin and cdi, device exposure inside pods, and sriov infiniband cni with multus attachments

This is a code heavy guide with working Bash, C, YAML, and JSON snippets that map directly to bring up, validation, and on call workflows.

Add a reliable InfiniBand playbook to your toolkit, get your copy today.

• Format: Paperback
• Language: English
• ISBN: B0FVNJW7V6
• ISBN13: 9798269204246
• Release Date: October 2025
• Publisher: Independently Published
• Length: 192 Pages
• Weight: 0.75 lbs.
• Dimensions: 0.4" x 7.0" x 10.0"