Red Hat Enterprise Linux 7 Beta showcases hundreds of new features and enhancements, including: 

• Linux Containers - Enabling applications to be created and deployed in isolated environments with allocated resources and permissions.
• Performance Management – Using built in tools, you can optimize performance out-of-the-box.
• Physical and Hosted In-place Upgrades - In-place upgrades for common server deployment types are now supported. Additionally, virtual machine migration from a Red Hat Enterprise Linux 6 host to a Red Hat Enterprise Linux 7 host is possible, without virtual machine modification or downtime.
• File Systems – File systems continue to be a major focus of development and innovation.
  • XFS is now the default file system, supporting file systems up to 500TB
  • ext4 file systems are now supported to 50TB and include block sizes up to 1MB
  • btrfs file systems are now available to test
• Networking – Enhanced networking configuration and operation. Added support for some of the latest networking standards, including:
  • 40Gb Ethernet support
  • Improved channel bonding
  • TCP performance improvements
  • Low latency socket poll support
• Storage – Expanded support for enterprise level storage arrays. Improved scalable storage stack for deployments that are less disk intensive. Improved storage management for heterogeneous storage environments.
• Windows Interoperability – Bridge Windows™ and Linux infrastructure by integrating SAMBA 4.1 with existing Microsoft Active Directory domains. Or, deploy Red Hat Enterprise Linux Identity Management in a parallel trust zone with Active Directory.
• Subsystem Management – Simplified configuration and administration with uniform management tools for networking, storage, file systems, performance, identities and security. Leveraging the OpenLMI framework, enables use of scripts and APIs to automate management.