SkyStore: Cost-Optimized Object Storage Across Regions and Clouds
Summary: SkyStore presents a unified virtual object/bucket API spanning clouds and regions, hiding heterogeneous storage and network pricing. Its TTL-driven replication/eviction adapts to access patterns for cost-optimal placement, achieving up to 6× savings with comparable latency and availability. (summarized by gpt-5.6-luna on Jul 24 2026)
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Authors
- 1. Shu Liu (University of California Berkeley)
- 2. Xiangxi Mo (University of California Berkeley)
- 3. Moshik Hershcovitch (IBM)
- 4. Henric Zhang (University of California Berkeley)
- 5. Audrey Cheng (University of California Berkeley)
- 6. Guy Girmonsky (IBM)
- 7. Gil Vernik (IBM)
- 8. Michael Factor (IBM)
- 9. Tiemo Bang (University of California Berkeley)
- 10. Soujanya Ponnapalli (University of California Berkeley)
- 11. Natacha Crooks (University of California Berkeley)
- 12. Joseph E. Gonzalez (University of California Berkeley)
- 13. Danny Harnik (IBM)
- 14. Ion Stoica (University of California Berkeley)
BibTeX Citation
@article{liu_vldb25,
title = {{SkyStore: Cost-Optimized Object Storage Across Regions and Clouds}},
author = {Liu, Shu and Mo, Xiangxi and Hershcovitch, Moshik and Zhang, Henric and Cheng, Audrey and Girmonsky, Guy and Vernik, Gil and Factor, Michael and Bang, Tiemo and Ponnapalli, Soujanya and Crooks, Natacha and Gonzalez, Joseph E. and Harnik, Danny and Stoica, Ion},
journal = {PVLDB},
series = {{VLDB} '25},
volume = {18},
number = {7},
pages = {2084--2096},
doi = {10.14778/3734839.3734846},
url = {https://doi.org/10.14778/3734839.3734846},
year = {2025}
}
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