Walrus as the storage layer solution for the Sui ecosystem means this tight technical coupling implies its stability depends not only on its own distributed node network, but is also directly constrained by the operational status of the Sui mainnet.

We need to seriously consider a realistic extreme scenario: what if the Sui network stops producing blocks due to consensus mechanism vulnerabilities or suffers a large-scale DDoS attack?

During this period when the Sui mainnet is down, although Walrus storage nodes continue running and disk data remains intact, the entire system's control center loses its ability to respond. You cannot apply for new storage quotas, cannot adjust access permission policies, and may even be unable to verify data ownership and access permissions through on-chain contracts. The result is that data falls into a "zombie" state—it physically exists, but is logically inaccessible or uncontrollable.

Particularly problematic are scenarios where permission authentication relies on real-time on-chain verification. For example, applications like "holding a specific NFT to decrypt stored files"—once Sui experiences downtime, the entire authentication mechanism collapses. Even users with legitimate permissions cannot access data.

Based on this understanding, when designing businesses with high availability requirements, I would not assume L1 is permanently stable and online. Instead, I would build a "backup degradation plan": cache critical metadata and permission snapshots at the application level. When the Sui network malfunctions, the application can temporarily switch to local verification mode, directly requesting data from Walrus nodes using cached credentials—provided that Walrus nodes provide some form of offline verification capability, or the application layer has backup decryption means.

To put it plainly, without this kind of "emergency contingency that maintains basic operations independent of the mainnet," all decentralization-focused storage solutions will appear fragile when facing mainnet failures.

Disclaimer: The above represents personal research perspectives for technical discussion reference only and does not constitute any investment advice.