Redhat Enterprise Linux
Red Hat® Enterprise Linux® (RHEL) Advanced Platform is a completely open source solution that is fully integrated and ready to deploy. The commercial strength server and storage virtualisation has powerful capabilities that deliver value and flexibility.
It also has the advantages of:
- 64 bit Hypervisor
- Direct Access to the Virtualisation engines built in to the AMD and Intel processors
- Unlimited Client Linux licences
Red Hat Enterprise Linux Advanced Platform has implemented server, storage and management into one single package which allows any users to get the benefits of virtualisation quickly and easily.
Benefits of virtualisation
- Server consolidation. With virtualisation it is possible to consolidate the load of several lightly loaded servers onto one
- Hardware abstraction. Virtualisation makes it easy to deploy an older operating system and applications on new hardware
- Resource management and high availability. The ability to move guest instances between systems enables workloads to be handled by the most appropriate system and continued operation during maintenance periods
- Application isolation. With virtualisation it is easy to encapsulate and application together with its operating system, performance, and configuration parameters, security environment, etc. into a single entity. This encapsulation enables applications to be tightly controlled and managed, immune from other changes in the IT environment
Virtualisation technologies
Red Hat Enterprise Linux Advanced Platform blends four primary technologies:
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Server virtualisation – allows multiple guest operating systems on a single server, all supported by Red Hat Enterprise Linux Advanced Platform. There can be as many guests as needed, only limited by the capacity of the physical server, and all of this is without having to pay additional subscription costs. Creating a new guest only takes a few seconds and while it is fully active it is possible to provision, suspend, resume, delete and even move to another physical server
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Storage virtualisation – allows multiple guests to access and share logical storage volumes and file systems while running or either the same or different servers. This ensures that the storage environment remains consistent for every guest, regardless of where it is running. This system is based on the Red Hat Global File System technology and allows customers to get the full benefits of server virtualisation
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Management – there are three primary management capabilities provided with Red Hat Enterprise Linux Advanced Platform:
- Virt-Manager. A GUI-based utility that allows system administrators to manage all aspects of virtualised system
- Libvirt and Virsh. A new library and command shell that enables customers to implement site-specific management strategies. Libvirt has program bindings for C/C++ and Python, so it can be readily incorporated into existing management tools.
- Red Hat Network. Enhanced to manage virtualised guest environments.
- Virt-Manager. A GUI-based utility that allows system administrators to manage all aspects of virtualised system
- Clustering and Failover – Red Hat Cluster Suite, which is included in the Red Hat Enterprise Linux Advanced Platform, provides application and guest operating system failover capabilities. Applications can be moved between guest operating systems on the same or different physical system, and entire guest operating systems environments can be moved between physical systems. Applications can be monitored for correct behaviour and the results used to trigger automated recovery procedures.
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Virtualisation capabilities
Feature |
Red Hat Enterprise Linux and Advanced Platform |
Supported Para-virtualised guests |
Red Hat Enterprise Linux 5 |
Supported fully-virtualised guests |
Red Hat Enterprise Linux 5 |
Hardware and application certification |
All Red Hat Enterprise Linux OEM and ISV partner certifications are valid for virtualised and non-virtualised environments except where noted |
Para-virtualised guest processor hardware requirements |
x86 with PAE |
Fully-virtualised guest processor hardware requirements |
Intel Virtualisation Technology or AMD-V |
Virtualised guest memory requirements |
Each active guest requires the same physical memory that it would require in a non-virtualised environment. The minimum recommended physical memory per active guest is 512MB. |
Architecture support for virtualisation |
Supported at product release: x86, x86-64 |
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