Features of RHEL7
Expanded Windows interoperability capabilities, including integration with Microsoft Active Directory domains.
Significant file system enhancements, including making XFS as the default file system. This allows scaling to support file systems up to 500 TBs.
Improved subsystem management through OpenLMI. This is a Red Hat-sponsored open source project. It's designed to provide a common infrastructure for multiple Linux systems management.
Real-time VM migration from RHEL 6 hosts to RHEL 7 hosts without downtime or VM modification.
Access to Docker container support with RHEL 7 RC, due to an expansion of the RHEL 7 High-Touch Beta program.