index.markdown

title	position	header_title	subtitle	color	button	extended_header	features	layout
DADI - Data Accelerator for Disaggregated Infrastructure	0	D A D I	<strong>D</strong>ata <strong>A</strong>ccelerator for <br> <strong>D</strong>isaggregated <strong>I</strong>nfrastructure	lighter-gray	title url Get started https://data-accelerator.github.io	true	title handle background width subsections intro yellow wide title body image button <span style="font-size: 18px">Accelerated container image</span> Sub-project of containerd, contains a containerd snapshotter and image conversion tools. <a class="text_link" href="/blog/Accelerated_container_image/">more</a> /assets/containerd.png title url Github https://github.com/containerd/accelerated-container-image title body image button Overlaybd Sub-project of containerd, contains the backend storage service of overlaybd image format. /assets/overlaybd.png title url Github https://github.com/containerd/overlaybd title body image button Buildkit Based on moby/buildkit, easily and directly build and export overlaybd images. /assets/build.png title url Github https://github.com/data-accelerator/buildkit title body image button P2P data distribution Use p2p protocol to speed up HTTP file download for registry in large-scale clusters. /assets/p2p2.001.png title url Github https://github.com/data-accelerator/dadi-p2proxy title handle background width subsections About DADI develop darkest-gray wide title body image color Introduction DADI is short for Data Accelerator for Disaggregated Infrastructure. DADI provides a solution for data acceleration which is typically used for container images acceleration, and can be easily expand into other scenarios. The whole approach of accelerated image service is published at [DADI: Block-Level Image Service for Agile and Elastic Application Deployment. USENIX ATC'20]("https://www.usenix.org/conference/atc20/presentation/li-huiba") DADI has been widely used in Alibaba and Alibaba Cloud and already been integrated by Alibaba Cloud Registry (ACR), Function Compute and other serverless services. /assets/dadi.jpg red title body image color Key Features <strong>High Performace</strong> Block-device-based image format has much lower complexity than filesystem-based implementations. For example, cross-layer hardlink and non-copy commands like chown are very complex for filesystem-based image without copying up, but is natively supported by overlaybd. <strong>High Reliability</strong> Overlaybd outputs virtual block devices through [TCMU](https://www.kernel.org/doc/Documentation/target/tcmu-design.txt), which is a linux kernel module and widely supported in most operation systems. Overlaybd backstore can recover from failures or crashes, which is difficult for FUSE-based image formats. /assets/perf.png purple title handle width color subsections Core Technology manage wide blue title handle body image Overlaybd collaborate Overlaybd is a block level container image format, providing a merged view of block-based layers. /assets/overlaybd-big.png title handle body image Zfile preview Zfile is a compression file format supporting online decompression, which can reduce storage and transmission costs. /assets/zfile.png title handle body image P2P edit Uses P2P protocol to speed up HTTP file download not only for container images. /assets/pp.png	index