From 512 to 4K: a case study in supporting large sector size SSDs in Solaris

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Author(s)/Presenter(s):

Bo Zhou

Library Content Type

Presentation

Library Release Date

Focus Areas

Abstract

The advent of SSD represents a sea change in storage system which brings exceptional performance and reliability compares to the HDD. The optimal sector size of SSD is typically 4KB, it’s different from traditional 512 bytes ones. We should make changes to accommodate this new trait. In this presentation, The speaker will give a case study of supporting large sector size SSDs in Solaris, including the motivation and background to change from 512 to 4K, the design and implementation in Solaris host driver stack and the performance gain introduced by this new design.