Abstract:
A Key-Value SSD (KV-SSD) is a new type of storage device that natively exposes a key-value interface. In this paper, we leverage KV-SSDs to develop new techniques to remo...Show MoreMetadata
Abstract:
A Key-Value SSD (KV-SSD) is a new type of storage device that natively exposes a key-value interface. In this paper, we leverage KV-SSDs to develop new techniques to remove unnecessary layers of indirection traditionally imposed by block devices on distributed storage systems. Specifically, we extend the Crail distributed system [1] to leverage the KV-SSD's native key-value interface exposing it directly to clients through the NVMe-oF protocol. This architectural change simplifies key-value metadata management, as the metadata manager need only track key-value tuples rather than files comprised of blocks. These changes enable fewer RPCs and require less memory for metadata management, resulting in a performance improvement of up to 5x.
Published in: 2018 IEEE 37th International Performance Computing and Communications Conference (IPCCC)
Date of Conference: 17-19 November 2018
Date Added to IEEE Xplore: 13 May 2019
ISBN Information: