Red Hat Enterprise Linux 7 is an operating system published by Red Hat, Inc., which is currently a subsidiary of IBM.
A summary of important improvements are listed below.
Kernel and Performance
- Based on Linux 3.10.0-957 kernel.
- Initial process is changed to systemd.
- Includes Security-Enhanced Linux.
Users can run virtual machines within RHEL 7 using its built-in Kernel-based Virtual Machine, or KVM. UMIACS also supports the use of Singularity, a container application that is an alternative to Docker.
File System Capabilities
The default file system is now XFS. Here is an overview of the supported file systems in RHEL7. Most of the information in section section is taken from this Redhat page.