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Bianca Schroeder

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titleconferencedate
Hyrax: Fail-in-Place Server Operation in Cloud PlatformsOSDI 20232023-07-10
Hyrax lets servers continue hosting VMs with failed but degradable components by disabling faulty parts (using an uncommon rank-bitmask deactivation for DIMMs)…
Talk on
Improving the Reliability of Next Generation SSDs using WOM-v CodesFAST '222022-02-22
Implements non-binary WOM-v codes in the Linux lightNVM/FEMU stack (700 LOC) and adds a QLC extension; evaluates on 800+ real traces and a FEMU-based testbed…
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Operational Characteristics of SSDs in Enterprise Storage Systems: A Large-Scale Field...FAST '222022-02-22
Study uses NetApp field telemetry covering almost 2 million SSDs over a decade and shows most drives consume <1% of their PE cycles per year so 86% survive…
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Test of Time Award: Analysis of Data Corruption in the Storage StackFAST '222022-02-22
Analysis of telemetry covers 1.5 million drives and records 400,000+ corruptions detected as checksum mismatches. Nearline drives show an order-of-magnitude…
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Prediction-Based Power Oversubscription in Cloud PlatformsUSENIX ATC '212021-07-14
Claims a 2x increase in safe power oversubscription by combining an ML model in Resource Central (99% accuracy at identifying user‑facing VMs) with enhanced VM…
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Rethinking WOM Codes to Enhance the Lifetime in New SSD Generations12th USENIX Workshop on Hot Topics in Storage and File Systems (HotStorage '20)2020-07-13
Presents a new, simple family of WOM codes designed for multi-level cells and evaluated on QLC drives, implemented with practical storage overheads and…
Talk
A Study of SSD Reliability in Large Scale Enterprise Storage DeploymentsFAST '202020-02-24
Field study analyzes 1.4 million SSDs from NetApp filers over 2.5 years (3 makers, 18 models, 12 capacities, SLC/cMLC/eMLC/3D‑TLC) and reports annual…
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Evaluating File System Reliability on Solid State DrivesUSENIX ATC '192019-07-10
Built a device-mapper injector that intercepts and corrupts or drops block I/O and runs over a thousand injected fault cases against ext4, Btrfs and F2FS…
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