The Sui ecosystem welcomes a new decentralized storage solution, Walrus

After the decentralized storage network Arweave launched its computing layer AO, it successfully drove the recovery of AR coin price, ecosystem, and popularity. As a general-purpose computing chain, Sui has launched the decentralized storage network Walrus, which is also expected to attract widespread attention in the industry.

Background Introduction

Team

Walrus is the latest decentralized storage network product launched by Mysten Labs. Most of the founders and employees of Mysten Labs come from Meta('s former blockchain project Diem, which has been dissolved. The name Walrus comes from "walrus," and the official website emphasizes its reliability and adaptability as a storage system.

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) and the relationship with Sui

Although Walrus is built on Sui and utilizes Sui to coordinate storage space and metadata sales, using Walrus does not require developing applications on Sui. Walrus will launch an independent governance token WAL, which will be used as a functional token.

Industry Status

Decentralization storage protocols are mainly divided into two categories: fully replicated systems and systems using Reed-Solomon###RS( encoding. Fully replicated systems like Filecoin and Arweave have high availability but face issues such as high storage overhead and vulnerability to Sybil attacks. While RS encoding systems have higher storage efficiency, they encounter challenges such as high encoding and decoding costs and complex node replacement.

In addition, existing decentralized storage systems generally face two major challenges: the need to continuously verify whether storage nodes retain data and the coordination issues among storage nodes. These challenges limit the scalability of the system and increase complexity.

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Core Innovation

Walrus uses innovative erasure coding technology to quickly and robustly encode unstructured data blocks into small shards, which are distributed and stored in a node network. Even if up to two-thirds of the shards are lost, the original data can be quickly reconstructed. This technology allows for a replication factor of only 4 to 5 times, comparable to existing cloud services, while also providing Decentralization and greater fault resilience.

Walrus has introduced a new 2D encoding algorithm called RedStuff, specifically designed for Byzantine fault tolerance. RedStuff is based on fountain codes, combining the advantages of fast operations and high reliability. It encodes data into primary and secondary slices through simple XOR operations, distributed across storage nodes. This design achieves asynchronous storage proofs with a total replication factor of less than 5 times, while maintaining efficient data recovery capabilities.

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The advantages of RedStuff include:

• The encoding/decoding speed is faster than RS coding.
• Low storage overhead, scalable to hundreds of nodes
• High elasticity and fault tolerance, able to recover data even in the case of Byzantine faults.

Walrus also features an efficient committee reconfiguration protocol that ensures data remains continuously available. The introduced asynchronous challenge protocol can efficiently verify the storage status of nodes, with its costs scaling logarithmically with the number of stored files.

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The economic model of Walrus is based on staking, combined with reward and penalty mechanisms. The innovative storage certification mechanism significantly reduces the cost of storing proof documents.

Overall, Walrus is centered around the RedStuff protocol, providing a scalable, highly resilient, and economically viable Decentralization storage solution. Thanks to Sui as the control layer, Walrus can focus on solving the core issues of Decentralization storage.

Future Outlook

Walrus will launch an independent token WAL, which will be used for functions such as staking and governance. Holding SUI may be a way to receive a WAL airdrop. Walrus is expected to launch a testnet soon, with the mainnet launch date to be determined. Currently, developers can refer to the official documentation to learn how to use Walrus to deploy their own websites.

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