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UID:pretalx-devconf-us-2026-KUSV3T@pretalx.devconf.info
DTSTART;TZID=EST:20260925T145000
DTEND;TZID=EST:20260925T152500
DESCRIPTION:Deploying OS images to bare metal clusters is painful. Unicast 
 scales linearly with node count. Multicast stalls if one node is slow. Pas
 t BitTorrent approaches either transfer entire raw partitions (wasting ban
 dwidth) or require RAM buffering for image conversion (size limited).\n\nE
 ZIO's provisioning time depends on image size and bandwidth\, not node cou
 nt. It transfers only used filesystem blocks and writes directly to raw di
 sk by calculating offsets on the fly. No RAM buffering\, no image conversi
 on\, no size limit. Each node works independently. Broken nodes can rejoin
  after recovery. This enables deploying large HPC environments with pre-in
 stalled software and data. Clonezilla has integrated EZIO for production u
 se.\n\nBenchmarks: On HDD (50GB\, 32 nodes)\, 11x faster than unicast\, 50
 % faster than multicast. In the cluster with NVMe SSD and 10G network at T
 aiwan's National Center for High-performance Computing (NCHC)\, 500 MB/s a
 cross 32 nodes. Lab tests reach 700 MB/s.
DTSTAMP:20260727T165145Z
LOCATION:101 (Capacity 48)
SUMMARY:EZIO: Predictable\, Fast\, Scalable BitTorrent-Based Bare Metal Pro
 visioning - Date (Yu-Chiang) Huang
URL:https://pretalx.devconf.info/devconf-us-2026/talk/KUSV3T/
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