IT Governance, Risk, and Compliance » Virtual Machine http://itknowledgeexchange.techtarget.com/it-governance Fri, 17 May 2013 01:49:47 +0000 en-US hourly 1 Managing the Growth and Impact of Virtual Machines and Memory – Part VIII http://itknowledgeexchange.techtarget.com/it-governance/managing-the-growth-and-impact-of-virtual-machines-and-memory-part-viii/ http://itknowledgeexchange.techtarget.com/it-governance/managing-the-growth-and-impact-of-virtual-machines-and-memory-part-viii/#comments Tue, 08 Mar 2011 20:41:44 +0000 Robert Davis http://itknowledgeexchange.techtarget.com/it-governance/?p=877 Given the proliferation of available hardware and software products that enable capitalizing on benefits associated with IT virtualization, when IT employees fail to perform effective configuration management; potential threats to the IT architecture are significantly increased. Besides managing the common risks associated with utilizing virtual memory and system virtual machines, additional procedures are necessary due to the inherent control weakness in program conversion to binary code for deployed process virtual machines. In particular, since process virtual machines are typically implemented using a program interpreter that relies on just-in-time source code compilation, programs are more susceptible to task modification. Thus, IT virtualization technology must be controlled to prevent service disruptions to end users and financial losses to the entity.

“View Part I of the Managing the Growth and Impact of Virtual Machines and Memory series here“

]]> http://itknowledgeexchange.techtarget.com/it-governance/managing-the-growth-and-impact-of-virtual-machines-and-memory-part-viii/feed/ 0 Managing the Growth and Impact of Virtual Machines and Memory – Part VII http://itknowledgeexchange.techtarget.com/it-governance/managing-the-growth-and-impact-of-virtual-machines-and-memory-part-vii/ http://itknowledgeexchange.techtarget.com/it-governance/managing-the-growth-and-impact-of-virtual-machines-and-memory-part-vii/#comments Fri, 04 Mar 2011 18:42:39 +0000 Robert Davis http://itknowledgeexchange.techtarget.com/it-governance/?p=873 As with any IT architecture item, to address the entity’s processing needs, virtual machines require execution of effective configuration management. Application of effective configuration management principles and practices “enables management to reduce the risk of requiring back-out due to inadequate preparation and/or incompatible changes affecting system availability and data processing integrity.” Therefore, an entity’s IT management should ensure the IT department has:

  • undertaken configuration management planning
  • identified configuration items
  • established a configuration management database
  • established a definitive software library
  • recorded configuration controls
  • maintained the status of configuration items
  • tracked the status of configuration items
  • reviewed configuration items against configuration management database records
  • managed configuration item libraries, licenses, and stores

“View Part I of the Managing the Growth and Impact of Virtual Machines and Memory series here“

]]> http://itknowledgeexchange.techtarget.com/it-governance/managing-the-growth-and-impact-of-virtual-machines-and-memory-part-vii/feed/ 0 Managing the Growth and Impact of Virtual Machines and Memory – Part VI http://itknowledgeexchange.techtarget.com/it-governance/managing-the-growth-and-impact-of-virtual-machines-and-memory-part-vi/ http://itknowledgeexchange.techtarget.com/it-governance/managing-the-growth-and-impact-of-virtual-machines-and-memory-part-vi/#comments Tue, 01 Mar 2011 16:21:52 +0000 Robert Davis http://itknowledgeexchange.techtarget.com/it-governance/?p=871 Though a process virtual machine can be considered an application-orientated system virtual machine; process virtual machine uniqueness resides in the provisioning of “a platform-independent programming environment that abstracts away details of the underlying hardware or operating system, and allows a program to execute in the same way on any platform.” Moreover, a process virtual machine executes as a normal application inside operating systems and only supports a single process. It is created when a process is started and dismantled when the process has concluded. At this configuration level, appropriate utilization of command services is a practical method for controlling a process virtual machine.

“View Part I of the Managing the Growth and Impact of Virtual Machines and Memory series here“

]]> http://itknowledgeexchange.techtarget.com/it-governance/managing-the-growth-and-impact-of-virtual-machines-and-memory-part-vi/feed/ 0 Managing the Growth and Impact of Virtual Machines and Memory – Part V http://itknowledgeexchange.techtarget.com/it-governance/managing-the-growth-and-impact-of-virtual-machines-and-memory-part-v/ http://itknowledgeexchange.techtarget.com/it-governance/managing-the-growth-and-impact-of-virtual-machines-and-memory-part-v/#comments Fri, 25 Feb 2011 17:47:56 +0000 Robert Davis http://itknowledgeexchange.techtarget.com/it-governance/?p=868 Derived from virtual memory concepts, virtual machines are a distinct IT configuration class. Under the virtual machine class, a ‘system virtual machine’ represents one physical unit subdivided so each of the component partitions function independently. The attractiveness of this technique is that it enables the deployment of more than one similar or dissimilar operating system within an IT hardware configuration. In addition, a ‘system virtual machine’ allows for the tandem operation of two or more programs within the definitions of multiprocessing. Control over the ‘system virtual machine’ is achieved through a virtual machine monitor (also known as a hypervisor) that typically provides consolidation, stability, security, flexibility, migration, and cloning capabilities.

“View Part I of the Managing the Growth and Impact of Virtual Machines and Memory series here“

]]> http://itknowledgeexchange.techtarget.com/it-governance/managing-the-growth-and-impact-of-virtual-machines-and-memory-part-v/feed/ 0