Decibel: Isolation and Sharing in Disaggregated Rack-Scale Storage


Mihir Nanavati, Jake Wires, and Andrew Warfield, Coho Data and University of British Columbia


The performance characteristics of modern non-volatile storage devices have led to storage becoming a shared, rack-scale resource. System designers have an imperative to rethink existing storage abstractions in light of this development. This paper proposes a lightweight storage abstraction that encapsulates full-system hardware resources and focuses only on isolating and sharing storage devices across multiple, remote tenants. In support of this, it prototypes a shared-nothing runtime capable of managing hardware and scheduling this abstraction in a manner that avoids performance interference and preserves the performance of the storage devices for tenants.

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@inproceedings {201460,
author = {Mihir Nanavati and Jake Wires and Andrew Warfield},
title = {Decibel: Isolation and Sharing in Disaggregated {Rack-Scale} Storage},
booktitle = {14th USENIX Symposium on Networked Systems Design and Implementation (NSDI 17)},
year = {2017},
isbn = {978-1-931971-37-9},
address = {Boston, MA},
pages = {17--33},
url = {},
publisher = {USENIX Association},
month = mar

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