Obsolete:Nova-zVM
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System z and z/VM
System z is a family name used by IBM for all of its mainframe computers. IBM System z now includes the IBM System z9, the IBM System z10 and the newer IBM zEnterprise.
z/VM is an IBM VM hypervisor based on 64-bit z/Architecture, and now with multi-system virtualization and virtual server mobility. z/VM is designed to allow the capability for clients to run hundreds to thousands of Linux servers on a single mainframe running with other System z operating systems, such as z/OS, or as a large-scale linux-only enterprise server solution.
xCAT is a management tool developed by IBM. It is used for the deployment and administration of Linux or AIX based clusters.