From 475ebf07eb2f2162bcd0ab4ff5b073be4ef0c03e Mon Sep 17 00:00:00 2001 From: Dayle Parker Date: Fri, 3 May 2013 16:02:14 +1000 Subject: Made changes throughout book to update for F19, according to RHEL7 content --- en-US/What_Is_It.xml | 22 +++++++++++----------- 1 file changed, 11 insertions(+), 11 deletions(-) (limited to 'en-US/What_Is_It.xml') diff --git a/en-US/What_Is_It.xml b/en-US/What_Is_It.xml index 756e53d..241f354 100644 --- a/en-US/What_Is_It.xml +++ b/en-US/What_Is_It.xml @@ -13,7 +13,7 @@ Full virtualization - Full virtualization uses the hardware features of the processor to provide guests with total abstraction of the underlying physical system. This creates a new virtual system, called a virtual machine, that allows guest operating systems to run without modifications. The guest operating system and any applications on the guest are unaware of their virtualized environment and run normally. Hardware-assisted virtualization is the technique used for full virtualization with KVM (Kernel-based Virtual Machine) in Fedora. + Full virtualization uses the hardware features of the processor to provide guests with total abstraction of the underlying physical system. This creates a new virtual system, called a virtual machine, that allows guest operating systems to run without modifications. The guest operating system and any applications on the guest virtual machine are unaware of their virtualized environment and run normally. Hardware-assisted virtualization is the technique used for full virtualization with KVM (Kernel-based Virtual Machine) in Fedora. @@ -32,16 +32,16 @@ - +
Migration - Migration describes the process of moving a virtual machine from one host to another. This is possible because guests are running in a virtualized environment instead of directly on the hardware. There are two ways to migrate a virtual machine: live and offline. + Migration describes the process of moving a guest virtual machine from one host to another. This is possible because guests are running in a virtualized environment instead of directly on the hardware. There are two ways to migrate a virtual machine: live and offline. Migration Types @@ -49,7 +49,7 @@ Offline migration - An offline migration suspends the guest, and then moves an image of the guest's memory to the destination host. The guest is then resumed on the destination host and the memory used by the guest on the source host is freed. + An offline migration suspends the guest virtual machine, and then moves an image of the virtual machine's memory to the destination host. The virtual machine is then resumed on the destination host and the memory used by the virtual machine on the source host is freed. @@ -57,7 +57,7 @@ Live migration - Live migration is the process of migrating an active guest from one physical host to another. + Live migration is the process of migrating an active virtual machine from one physical host to another. @@ -70,7 +70,7 @@ Load balancing - When a host machine is overloaded, one or many of its virtual machines could be migrated to other hosts. + When a host machine is overloaded, one or many of its virtual machines could be migrated to other hosts using live migration. @@ -102,11 +102,11 @@ Shared, networked storage must be used for storing guest images to be migrated. Without shared storage, migration is not possible. It is recommended to use libvirt-managed storage pools for shared storage. - +