Evaluating host aware SMR drives

Fenggang Wu, Ming Chang Yang, Ziqi Fan, Baoquan Zhang, Xiongzi Ge, David H.C. Du

Research output: Contribution to conferencePaper

28 Scopus citations

Abstract

Shingled Magnetic Recording (SMR) technology increases the areal density of hard disk drives. Among the three types of SMR drives on the market today, Host Aware SMR (HA-SMR) drives look the most promising. In this paper, we carry out evaluation to understand the performance of HA-SMR drives with the objective of building large-scale storage systems using this type of drive. We focus on evaluating the special features of HA-SMR drives, such as the open zone issue and media cache cleaning efficiency. Based on our observations we propose a novel host-controlled indirection buffer to enhance the drive's I/O performance. Finally, we present a case study of the open zone issue to show the potential of this host-controlled indirection buffer for HA-SMR drives.

Original languageEnglish (US)
StatePublished - 2016
Event8th USENIX Workshop on Hot Topics in Storage and File Systems, HotStorage 2016, co-located with USENIX ATC 2016 - Denver, United States
Duration: Jun 20 2016Jun 21 2016

Conference

Conference8th USENIX Workshop on Hot Topics in Storage and File Systems, HotStorage 2016, co-located with USENIX ATC 2016
CountryUnited States
CityDenver
Period6/20/166/21/16

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  • Cite this

    Wu, F., Yang, M. C., Fan, Z., Zhang, B., Ge, X., & Du, D. H. C. (2016). Evaluating host aware SMR drives. Paper presented at 8th USENIX Workshop on Hot Topics in Storage and File Systems, HotStorage 2016, co-located with USENIX ATC 2016, Denver, United States.