The superior performance of solid-state disks (SSDs) along with their low power and cooling requirements makes them attractive to many IT organizations including the distributed enterprise. However, their relatively low capacities and higher costs compared to traditional hard disk drives (HDDs), preclude them from being solely deployed to address the entire storage requirement.
Instead a small amount of SSD along with higher capacity HDDs can be used to create a hybrid tiered storage environment, one where the SSDs provide high performance and act as a buffer or cache to hard disks which provide the required storage capacity.
For hybrid storage solutions to be effective intelligent software is required to provide algorithms to manage the cache, the SvSAN 5.2 release will introduce SSD caching functionality. This StorMagic blog discusses what disk caching is and looks at some common caching techniques used to accelerate response times and how SvSAN uses these.
Action Item: To read the blog in full visit www.stormagic.com/blog