After years of development, RedHat finally released the next major version of RedHat Enterprise Linux (RHEL) v7. RedHat Enterprise Linux is an enterprise-grade Linux distribution, which is frequently used in corporate data centers as an operating system for NAS storage devices. From the performance point of view, the new Linux kernel and the new default file system may have a significant impact on a NAS storage device and therefore it is very important to understand how the newly released RedHat Enterprise Linux version 7.0 compares to the last stable version 6.5.
http://www.flexense.com/centos6_vs_centos7_nas_performance.html
