Problems Of Virtualized Environments In Cloud Computing
Virtualization is probably the most beneficial and transcendent factor of the Cloud where enterprise level resource allocation and consumption can be performed within reduced time and cost. However, virtualization has some operational risks which may lead to detrimental consequences for the huge data centers and information infrastructures if not addressed properly. Virtual environments have always faced the vulnerabilities of system and application based threats because of the multi level centralized architecture with common and single point of failures. Virtual Machine (VM) hosting architecture is beyond doubt one of the most pragmatic hallmarks of the modern day enterprise IT where you share and use the pooled resources on-demand without acquiring or wasting any resource. However, the CPU cycle bottleneck and ticket generation problems are really something to give a thought about.
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VM sprawl challenges are the most common within private or public Cloud based virtual environments where multiple end users and consumers access the same resource at the same time and the service manager cannot commit the allocation commands due to lack of smart tracking and monitoring. Unitary migration has been depleted in the cloud computing since there is a need to host multiple level of VMs to a single physical layer of the cloud. One obvious solution to the problem is to cease resource allocation based on the smart data analysis of the consumption of resources including memory. Unnecessary migration to a private Cloud within an enterprise may also result in resource drainage which may eventually impact other users within the enterprise.
Hypervisor based Cloud communication is prone to security breaches because of the limitations of the physical infrastructure. Hypervisor consists of transit based architecture in which the whole Cloud channel may be compromised if there’s any security vulnerability in the information servers and physical layered architecture. Managing the time dimension is another security challenge in virtualized environments since there is no red line to commit the data log changes. In case the cloud channel crashes, there is a serious security risk of losing all of the information within a small time frame.
Possible solutions to the problems are the encryption of embedded hypervisor log files. All the data transfer must be examined using the monitor control procedure calls. Virtual image control files are always a threat to the cloud architecture because of the Trojan libraries and their ability to supersede the encryption checks. Data redundancy checks must be applied to the starting and ending points of the communication channels. VM backboard must be regulated using the hypervisor based APIs. Furthermore, time management and memory efficiency problems in the virtualization domain can be sorted out using the complex scheduling and optimization techniques.
By Salman UI Haq
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