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Saurabh Kadekodi

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Okapi: Decoupling Data Striping and Redundancy Grouping in Cluster File SystemsOSDI '252025-07-07
Okapi decouples stripes and redundancy groups, letting stripe width be tuned for IO patterns while group width is tuned for reliability and cost; prototype…
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FastCommit: resource-efficient, performant and cost-effective file system...USENIX ATC 20242024-07-10
Ext4 gains a hybrid journaling mode that replaces many fsync-triggered physical writes with compact logical records, so over 80% of commits fit in a single 4KB…
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Practical Design Considerations for Wide Locally Recoverable Codes (LRCs)FAST '23: 21st USENIX Conference on File and Storage Technologies2023-02-21
Designs produce Uniform Cauchy LRCs built by expanding Azure LRC local groups to cover parity chunks using Cauchy coefficients, constructible from existing…
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Preview: StorageOSDI '21 / USENIX ATC '212021-07-14
Survey of storage work covers ZNS device interfaces that cut the block‑interface tax and raise throughput/capacity; an enhanced ZNS offloads compaction to…
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Cluster storage systems gotta have HeART...FAST '192019-02-25
An online tool called HeART monitors per–make/model annualized failure rates, uses an anomaly detector (robust random cut forest) and a change-point detector…
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