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 can be used to manage virtual servers spanning across multiple z/VM partitions. The xCAT management node (MN) runs on any Linux virtual server. It manages each z/VM partition using a System z hardware control point (zHCP) running on a privileged Linux virtual server. The zHCP interfaces with z/VM systems management API (SMAPI), directory manager (DirMaint), and control program layer (CP) to manage the z/VM partition. It utilizes a C socket interface to communicate with the SMAPI layer and VMCP Linux module to communicate with the CP layer.