期刊名称：Bulletin of the Technical Committee on Data Engineering
出版年度：2014
卷号：37
期号：2
出版社：IEEE Computer Society
摘要：Relational database systems were designed assuming data would be stored on hard disks (HDD) which, at thetime, was the only realistic choice. Over the years database systems have been optimized for HDD storage.Solid state disks (SSD) based on flash storage have now become an attractive alternative, offering much higherperformance albeit at higher prise per GB. Simply replacing HDDs by faster SSDs can produce impressiveperformance improvements but a database system optimized for HDDs may not fully exploit the capabilities ofSSDs. SSDs have different characteristics and capabilities than HDDs. For example, on SSDs writes are muchmore expensive than reads. So how should database systems adapt to fully exploit the capabilities of flash SSDswhile also avoiding some of their limitations? The papers in this special issue explore different aspects of thischallenge.
