Kernel Module Management in Software-Defined Storage

on YouTube ↗14m

" summary

Kernel storage extensions for GPFS consist of three kernel modules that implement VFS hooks, inode and file operations, architecture-specific code and POSIX ACLs, and each traditional build produces three .ko files in about 20–30 seconds. The KMM operator automates building with build pods, pushes module artifacts as container images in a registry, manages per-node kernel-version mappings, uses node selectors to target nodes, and deploys driver containers to load modules across Kubernetes/OpenShift clusters.

AI-written summary · about

" chapters (10)

1. 0:00Kernel module management intro
2. 1:06Linux VFS and storage extensions
3. 3:17GPFS kernel functions
4. 5:26Traditional deployment
5. 6:54Portability layer in SDS
6. 7:15Modules in containerized SDS
7. 8:16KMM Operator overview
8. 10:04KMM config and deploy
9. 11:07Traditional vs KMM
10. 11:49Summary and future

" related talks

• 22mPersistent Memory in KubernetesPatrick Ohly · KubeCon + CloudNativeCon North America 2020 Virtual
• 36mKubernetes Distributions and 'Kernels'Tim Hockin, Michael Rubin · KubeCon + CloudNativeCon North America 2017
• 37mStorage on Kubernetes - Learning From FailuresHemant Kumar, Jan Šafránek · KubeCon + CloudNativeCon North America 2019
• 32mUnderstanding Kubernetes Storage: Getting in Deep by Writing a CSI DriverGerry Seidman · Vault '20
• 35mKubernetes Storage Lingo 101Saad Ali · KubeCon + CloudNativeCon Europe 2018
• 29mSo, What If I Don’t Want My Persistent Storage To Be Yet Another Bindmount?Deep Debroy, Feng Wang · KubeCon + CloudNativeCon North America 2022
• 36mRunning High-performance User-space Packet Processing Apps in KubernetesAbdul Halim, Peng Liu · KubeCon + CloudNativeCon North America 2019
• 05mLightning Talk: Managing Drivers in a Kubernetes ClusterRenaud Gaubert · KubeCon + CloudNativeCon Europe 2019