1. II. Teknologi Virtualisasi 2 Diekstrak dari Cloud Computing Virtualization Specialist Complete Certification Kit

2. Referensi 2 1.Rittinghouse, John W & James F. Ransome. Cloud Computing Implementation, Management and Security. CRC Press. 2010. 2.The Art of Services, Cloud Computing Specialist Certification Kit. The Art of Services. 2009 3.Velte, Toby, Anthony Velte, Robert Elsenpeter. Cloud Computing, A Practical Approach. McGraw-Hill. 2009 4.Hurwitz, Judith. Robin Bloor. Cloud Computing Cloud Computing For Dummies. For Dummies 2009 5.Handbook of Cloud Computing, Springer 2010 6.Marks, Eric A. Bob Lozano. Executive's Guide to Cloud Computing. Wiley. 2010 7.Davind E. Y. Sarna, Implementing and Developing Cloud Computing Application. Taylor and Francis Group, LLC. 2011 8. Jeanna N. Matthews; Eli M. Dow; Todd Deshane; Wenjin Hu; Jeremy Bongio; Patrick F. Wilbur; Brendan Johnson, Running Xen: A Hands-On Guide to the Art of Virtualization

3. CONTENTS 12.RESOURCE VIRTUALIZATION 13.PROCESSOR VIRTUALIZATION 14.APPLICATION VIRTUALIZATION 15.STORAGE VIRTUALIZATION 16.VIRTUALIZATION DENSITY 17.PARA-VIRTUALIZATION 18.OS VIRTUALIZATION 19.VIRTUALIZATION SOFTWARE 20.DATA STORAGE VIRTUALIZATION

4. CONTENTS 21.INTEL VIRTUALIZATION TECHNOLOGY 22.THINSTALL VIRTUALIZATION SUITE 23.NET FRAMEWORK VIRTUALIZATION 24.WINDOWS VIRTUALIZATION ON FEDORA 25.STORAGE VIRTUALIZATION TECHNOLOGIES 26.VIRTUALIZATION LEVEL 27.SECURITY MONITORING AND VIRTUALIZATION 28.ORACLE VIRTUALIZATION 29.VIRTUALIZATION TECHNOLOGIES REVIEW QUESTIONS 30.Latihan

5. 2.12 RESOURCE VIRTUALIZATION Resource virtualization involves the virtualization of one or more IT-related system resources. could involve the virtualization of specific system resources such as storage or network resources, could involve the virtualization of entire physical resources, such as servers or end-user workstations. By grouping together and sharing IT resources, a business can greatly reduce their infrastructure and hardware costs.

6. 2.13 PROCESSOR VIRTUALIZATION Processor virtualization simply involves the virtualization of a physical processor, so that multiple virtual machines can be run on a single physical machine. Processor virtualization is NOT the same as multitasking or Hyper-Threading technology. Multitasking is a process in which multiple applications can be run by a single processor at the same time.

7. 2.14 Application Virtualization Application virtualization works by making separate copies of shared resources, for separate applications. For example each virtual application will have a copy of its own drivers, registry entries, DLLs and any other resources that would usually be shared with other applications. When a virtual application is run, it will call upon its own specific resources. The isolated environments that these applications run in are often referred to as virtual bubbles.

8. 2.15 Storage Virtualization Storage virtualization involves the virtualization of physical storage devices. It is a technique that allows many different users or applications to access storage, regardless of WHERE that storage is located or WHAT kind of storage device it is. When storage is virtualized, it appears standardized and local to host machines, even though the storage may be distributed across many different locations and many different types of hard drives.

9. 2.15 Storage Virtualization One of the most widely deployed storage virtualization technologies is a SAN (Storage Area Network). Just as its name suggests, a SAN is a large network of storage devices. These storage devices which are usually held in a rack are independent of any servers or machines, and are instead directly connected to an organization’s network.

10. 2.16 Virtualization Density Virtualization density is a phrase that can be used with a number of virtualization technologies. It often refers to the number of virtual machines that can fit within a single physical machine or rack. The more virtual machines that a single physical machine can support, the more dense it is said to be.

11. 2.17 Para-Virtualization x86 processors are difficult to emulate because of the way in which they work. A host operating system’s kernel needs direct access to its hardware in order for instructions to be interpreted correctly. In a virtualized environment a guest operating system’s kernel does not have direct access to its physical processor, therefore certain instructions have to be changed or replaced, so that there is a correct ‘understanding’ between the guest OS and it’s physical processor.

12. 2. 18 OS Virtualization VMware ESX Server is much more efficient than other virtualization technologies because it has lower system overheads and interacts with its hardware directly. VMware ESXi – This application is similar to the VMware ESX Server application. The only difference is that it takes up less memory, because its Service Console is replaced with a simpler interface. As of July 2008, VMware ESXi is available to download for free. VMware Server – This is VMwares free server virtualization application. It is anapplication which needs to be installed onto a host OS that is either Window or Linux based. Due to this fact it is not as efficient as the other VMware server editions, which are installed directly on their hardware. However VMware Server does allow you to create multiple virtual machines which can have a number of different guest operating systems installed. As you can see, VMware offer a number of different virtualization applications. Each one has its own advantages and disadvantages, depending on the scenarios they are used in.

13. 2. 19 Virtualization Software VMware Workstation would be best utilized in an environment which contains multiple end user desktops. These desktops could be virtualized into a few physical machines. VMware ESX Server would be best used to create high performance virtual servers which provide important services. VMware Server is offered for free, however it is not as efficient as VMware ESX Server. However it would still be great to use for the virtualization of less mission-critical servers. Which virtualization solution a business should go for really depends upon their current scenario; for example how large they are, whether their servers are resource-intensive and what their future prospects are. Once a business determines these things they can go about choosing a suitable virtualization solution. Although VMware is the dominant brand in virtualization, other companies are now starting to catch up. Microsoft has released their new Hyper-V software, which is a direct competitor to VMware’s own ESX Server edition. At the moment, tests show that performance wise, ESX Server Edition currently leads the way. However many virtualization companies are improving their technologies and you can now even download powerful open source virtualization technologies for free.

14. 2.20 Data Storage Virtualization As data storage requirements for businesses have steeply risen and continue to do so, managing this data has also become increasingly difficult. For example, backing up data can be quite a tricky task to do in a large organization. Over time, a number of technologies and solutions developed to overcome these problems and finally evolved into what we now know as ‘Data Storage Virtualization’. The first step taken towards developing a data storage virtualization solution involved eliminating the distinction between local and networked resources. By doing this, networked storage resources would appear as though they resided locally on a machine.

15. 2.21 Intel Virtualization Technology Intel virtualization technology specifically refers to Intel’s hardware-assisted virtualization solution known as Intel VT. Hardware-assisted virtualization is effectively the same as other forms of virtualization, except that it is far more efficient. It is more efficient because the physical processor takes a lot of strain of the host operating system’s kernel and virtualization software. Intel VT technology also reduces the amount of software- based hardware emulation that is required, because it carries out a lot of processes that would normally need emulating.

16. 2.22 Thinstall Virtualization Suite Thinstall virtualization suite (now known as VMware ThinApp), is an application virtualization program, created by Thinstall Inc. In January 2008 VMware acquired Thinstall and the rights to the Thinstall virtualization suite, renaming it as VMware ThinApp. The main objective of VMware ThinApp involves the virtualization of normal applications or software so that they become portable and run on any machine or platform.

17. 2.23 Net Framework Virtualization The Main problem that users may face when installing the newest version of the dot net framework is that some of their applications may stop working. Sometimes older applications may require an earlier version of the dot net framework in order for them to work correctly Net framework virtualization (or Dot Net framework virtualization) involves running Dot Net applications without actually installing the dot net framework. The dot net framework is a library of pre-coded solutions to common software or programming problems. It is created by Microsoft and is used in conjunction with Microsoft operating systems.

18. 2.14 Windows Virtualization on Fedora In the past, running Fedora (or any other Linux-based distribution for that matter) and Windows on the same machine, would require the logical partitioning of that machine’s hard drive. The solution to this problem was virtualization. By using virtualization, a Windows operating system could run within Fedora as a stand-alone application. This meant that both operating systems could now be run at the same time and there was no need to reboot or restart the physical machine when switching between operating systems. Fedora uses KVM (Kernel based Virtual Machine) as part of its virtualization solution. This means that it fully supports Intel VT and AMD-V technology (Intel and AMDs hardware virtualization technologies, respectively).

19. 2.25 Storage Virtualization Technologies Storage virtualization in its simplest form involves grouping together multiple physical storage devices (no matter where they are physically located), so that they appear as one big storage unit. There are many different storage virtualization technologies including, NAS (Network-attached Storage), SAN (Storage Area Network) and iSCSI (Internet SCSI).

20. 2.12 Latihan 1.Cari deskripsi dan cara kerja SAN, NAS, iSCSI! 2.Sebutkan teknologi virtualisasi dasar yang telah dibahas dan jelaskan perbandingannya! 3.Browse Internet untuk mencari teknologi virtualisasi terbaik? Jelaskan mengapa dan menurut siapa?