SAS ® and the New Virtual Storage Systems
Tony Brown, Margaret Crevar, Sas Workload Characteristics · 2013
Storage providers are offering a wave of new and advanced storage subsystems. These offerings promise virtualized, thin-provisioned, tiered, and intelligent storage that is easy to manage and will reduce costs. For many random and mixed workload applications, the promises deliver well and with good performance. Unfortunately, the SAS® I/O workload profiles tend to violate some of the primary design assumptions underlying the configuration of these new systems. This paper addresses the SAS workload-specific issues that need to be considered when configuring these new storage systems for expected performance.