IBM System z z/VM Basics Arwed Tschoeke Systems Architect
[email protected] © 2009 IBM Corporation © 2008 IBM Corporation Introduction We'll explain basic concepts of System z: – Terminology – Processors – Memory – I/O – Networking We'll see that z/VM virtualizes a System z machine: – Virtual processors – Virtual memory – … and so on Where appropriate, we'll compare or contrast: – PR/SM or LPAR – z/OS – Linux 2 z/VM: The Very Basics z/VM: The Very Basics 1 IBM System z © 2008 IBM Corporation System z Parts Nomenclature x86, UNIX, etc. System z Memory Storage (though we are moving toward "memory") Disk, Storage DASD – Direct Access Storage Device Processor Processor, Engine, PU (processing unit) IOP (I/O processor) CPU (central processing unit) CP (central processor) SAP (system assist processor) Specialty engines –IFL (Integrated Facility for Linux) –zAAP (System z Application Assist Processor) –zIIP (System z9 Integrated Information Processor) Computer CEC (central electronics complex) Server 3 z/VM: The Very Basics © 2008 IBM Corporation IBM System z Virtualization Genetics Over 40 years of continuous innovation in virtualization – Refined to support modern business requirements System z10 . – Exploit hardware technology for economical growth , .. ity System z9 z/VM V5 bil – LPAR, Integrated Facility for Linux, HiperSockets xi 64-Bit Fle – System z Application Assist Processors s, zSeries es VM/ESA Virtual Switch – System z Information Integration stn 9672 bu ESA Guest LANs Set Observer Ro Processors y, 9x21 ilit VM/XA Virtual Machine