Virtualization Security Term Paper

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Virtualization Security

ITEM

Virtualization: Benefits of XenServer

Disadvantage of XenServer

Virtualization Security Challenges

Implementation of XenServer

VIRTUALIZATION SECURITY

The objective of this study is to examine the use of Citrix XenServer which is a free virtualization platform based on the open-source Xen hypervisor and to examine the implications, advantages and disadvantages of having an open-source virtualization product such as XenServer.

XenServer is a "full open source model beginning with the new XenServer 6.2." (Citrix, 2015, p.1) Xenserver provided by Citrix is a paid version however, the upside to the paid version is that it is inclusive of both maintenance and support as well as having CPU socket licensing. It is reported that the "DNA of Xen and XenSource...is open source." (Citrix, 2015, p.1) In addition it is reported that "open source software leads proprietary software in cloud infrastructure [and] open source enables collaborative development and drives public trust." (Citric, 2015, p. 1) Furthermore, open source communities empower users and broaden market reach." (Citrix, 2015, p. 1)

I. Virtualization: Benefits of XenServer

Virtulization is described as "the decoupling of logical computing resources from physical hardware." (Trend Micro, 2015, p. 2) Virtualization offers the opportunity to "provide significant benefits and cost-savings through server consolidation.

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By virtualizing and consolidating underutilized XenApp servers, and applications silos the investment in existing IT resources can be maintained while simultaneously reducing server footprint in the datacenter and achieving a far greater degree of server utilization." (Citrix, 2015, p. 6)

In addition virtualization of the server and XenServer's "dynamic workload management...introduces a new and simplified management paradigm for XenApp environments." (Citrix, 2015, p. 6) 'Custom Systems Corporation' states that the advantages of XenServer include that there "is almost no overhead. The Xen Server Host can fit on a small RAID 1 partition, needs very little RAM, and doesn't need to be managed as often as a Windows Host Server." (2014, p. 1) This enables all the fast hard drives and RAM to be allotted to the Virtual Services rather than this taking up the Windows Host Server." ( Custom Systems, 2014, p. 1) The export or migration of a VM with XenServer is quite easy and this is not true of the Microsoft Hyper-V.

II. Disadvantages of XenServer

According to 'Custom Systems' the XenServer is not as easy to manage as Microsoft Hyper-V. While the install goes much quicker, in order to.....

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