Red Hat Enterprise Virtualization (RHEV) is Red Hat Inc.'s server
virtualization platform.
RHEV Manager, also called the RHEV-M management console, provides a Web Interface for managing virtual machines (VMs) running on physical nodes. The nodes themselves can be configured with the RHEV-H hypervisor or as Red Hat Enterprise Linux (RHEL) servers with a virtualization entitlement. In an effort by Red Hat to be 100% open source, RHEV management is browser-based and can be accessed from any platform. RHEV does not mandate any specific storage requirements, but it contains a central storage repository. The underlying kernel-based virtual machine (KVM) hypervisor is integrated into the Linux kernel, which allows for cost savings as well as security and performance improvements over other platforms.
The latest version of the platform, RHEV 3.1, includes live migration, intelligent power management and support for up to 2 TB of RAM per VM.
A new management interface and snapshot updates
Support for storage migration facilitates live migration of a VM from one storage domain to another storage domain. This means administrators who want to migrate VMs to a new SAN don't need to wait hours until the VM disk file (VMDK) is copied over to the other site. And because RHEV 3.1 supports live migration, there is no delay in this process.
Quota support, which allows you to put quotas on the use of RAM, storage and CPU a VM can consume, will be a boon to data centers. Because RHEV is built on top of Red Hat Enterprise Linux, it can take advantage of new features in the Linux kernel, including cgroup, which is the underlying technology in quota support.
RHEV Manager, also called the RHEV-M management console, provides a Web Interface for managing virtual machines (VMs) running on physical nodes. The nodes themselves can be configured with the RHEV-H hypervisor or as Red Hat Enterprise Linux (RHEL) servers with a virtualization entitlement. In an effort by Red Hat to be 100% open source, RHEV management is browser-based and can be accessed from any platform. RHEV does not mandate any specific storage requirements, but it contains a central storage repository. The underlying kernel-based virtual machine (KVM) hypervisor is integrated into the Linux kernel, which allows for cost savings as well as security and performance improvements over other platforms.
The latest version of the platform, RHEV 3.1, includes live migration, intelligent power management and support for up to 2 TB of RAM per VM.
A new management interface and snapshot updates
Important storage improvements in RHEV 3.1
RHEV 3.1 also boasts some significant storage features. First, the inclusion of more storage types, such as direct LUN access and Red Hat Storage (Gluster file system) means storage is more flexible. In RHEV 3.1, you can also perform storage migration, which adds a new layer of flexibility. A VM configured in one storage domain cannot be connected to another storage domain.Support for storage migration facilitates live migration of a VM from one storage domain to another storage domain. This means administrators who want to migrate VMs to a new SAN don't need to wait hours until the VM disk file (VMDK) is copied over to the other site. And because RHEV 3.1 supports live migration, there is no delay in this process.
Quota support, which allows you to put quotas on the use of RAM, storage and CPU a VM can consume, will be a boon to data centers. Because RHEV is built on top of Red Hat Enterprise Linux, it can take advantage of new features in the Linux kernel, including cgroup, which is the underlying technology in quota support.
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