Longhorn: Intro, Deep Dive And Q+A
summary
Cloud-native block storage for Kubernetes that runs without external databases and uses CRDs plus a CSI plugin, Longhorn claims synchronous 3-replica durability, live rebuilds, and cross-cluster DR via a shared S3/NFS backup store. Production footprint hits 70,000 nodes and v1.3 adds conversion/admission webhooks, storage-network routing and backup policies; v1.4.0 features include RWX GA, ARM64 test parity, TRIM support, snapshot checksums for faster rebuilds, system backup/restore, and ongoing SPDK work replacing the iSCSI/TGT data plane.
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chapters (16)
- 0:00Longhorn intro
- 0:40Longhorn overview
- 3:33Key capabilities
- 6:00Community growth
- 7:02Release 1.3 highlights
- 10:59Release 1.4 plans
- 15:09Longhorn architecture
- 17:57Data plane & fault tolerance
- 21:49Kubernetes integration
- 22:52Use cases
- 24:14Snapshot & volume lifecycle
- 25:38Backup & disaster recovery
- 26:41Volume rebuilding
- 28:48Live migration & upgrades
- 30:56Performance & future plans
- 31:36Q&A
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