Author

Dan Feng

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Open access Aug 2026

Revisiting Data Updates in Erasure-Coded Storage Clusters

Erasure coding is widely adopted to maintain data reliability, yet it introduces a significant update penalty. We analyze real-world traces and observe several challenges that are not addressed by existing studies, which thereby restricts the performance gains. We propose FastUpdate, an efficient multi-stripe updates f...

Hai Zhou, Dan Feng · ACM Transactions on Storage · 0 citations

Book Open access Sep 2026

ZNStore: Decomposing the B+Tree Write Path for Zoned Namespace SSDs

Zoned Namespace (ZNS) SSDs expose a sequential-write zone interface that reduces flash-level write amplification and offers cost and capacity advantages over conventional SSDs. Yet this interface creates a semantic mismatch for B+Tree-based storage engines, whose updates are fine-grained and logically in-place. Our wri...

Bo Chen, Jin-Lei Hu, Cheng-Xiao Gong et al. · Proceedings of the Internati... · 0 citations