EZIO: Predictable, Fast, Scalable BitTorrent-Based Bare Metal Provisioning
summary
EZIO is a BitTorrent-backed bare-metal provisioner that transfers only used filesystem blocks and writes directly to raw disk on the fly, avoiding RAM buffering or image conversion. It seeds via libtorrent, lets peers reseed, and survives broken nodes rejoining. Integrated into Clonezilla since 2019 and used at NCHC, benchmarks show 11× speedup vs unicast on 50 GB HDD across 32 nodes, 50% faster than multicast, and sustained 500 MB/s across 32 nodes (lab peaks ~700 MB/s).
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chapters (12)
- 0:00EZIO introduction and goals
- 1:26Deploying images to many machines
- 5:23Three deployment methods compared
- 8:53BitTorrent for scalability
- 13:27BitTorrent disk deployment challenges
- 18:05Disk blocks to BitTorrent pieces
- 21:42Direct disk writes in EZIO
- 23:32Performance benchmarks
- 26:21Predictable at scale
- 28:26Adopting EZIO
- 29:29Conclusion and future
- 31:17Q&A
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