DBNode: A Decentralized Storage System for Big Data Storage in Consortium Blockchains

• URL: http://arxiv.org/abs/2409.20123v1
• Date: Mon, 30 Sep 2024 09:22:15 GMT
• Title: DBNode: A Decentralized Storage System for Big Data Storage in Consortium Blockchains
• Authors: Narges Dadkhah, Xuyang Ma, Katinka Wolter, Gerhard Wunder,
• Abstract summary: This paper proposes a decentralized storage system for Hyperledger Fabric. We employ erasure coding to partition files, then organize these chunks into a hierarchical structure. We design a two-layer hash-slots mechanism and a mirror strategy, enabling high data availability.
• Score: 2.474908349649168
• License: http://creativecommons.org/licenses/by-nc-sa/4.0/
• Abstract: Storing big data directly on a blockchain poses a substantial burden due to the need to maintain a consistent ledger across all nodes. Numerous studies in decentralized storage systems have been conducted to tackle this particular challenge. Most state-of-the-art research concentrates on developing a general storage system that can accommodate diverse blockchain categories. However, it is essential to recognize the unique attributes of a consortium blockchain, such as data privacy and access control. Beyond ensuring high performance, these specific needs are often overlooked by general storage systems. This paper proposes a decentralized storage system for Hyperledger Fabric, which is a well-known consortium blockchain. First, we employ erasure coding to partition files, subsequently organizing these chunks into a hierarchical structure that fosters efficient and dependable data storage. Second, we design a two-layer hash-slots mechanism and a mirror strategy, enabling high data availability. Third, we design an access control mechanism based on a smart contract to regulate file access.

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