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Tags: virtual environments - VPS Host Dir - About Virtual Private Servers
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Tags: virtual environments

Virtualization Pain Relievers

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In an article titled "Managing the complexities of storage virtualization" the Computer World magazine explains the sides of storage virtualization solutions The magazine says that its benefits bring added layers of complexity.

Read the article in CW. We will offer you here only a short table titled "Virtualization Pain Relievers"

1. Be realistic: This is going to be complicated.

2. Assign someone on staff who really knows the technology, or hire a consultant, at least at the beginning.

3. Do your homework. Read the documentation and understand the pieces and their interfaces.

4. Be sure that your gear and their interfaces are certified by your vendor(s) for the versions/releases that you have.

5. Consider upgrading your old storage gear when you go to storage virtualization.

6. Make sure you have thoughtful policies and procedures for maintenance and backups.

7. Guard against "virtual sprawl" (of both storage and servers).

8. Ask yourself: Do I really need this?

The Disadvantages Of Virtualization?

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The main advantage of virtualization technologies is that they help small businesses to lower costs for infrastructure, hardware, power and cooling. At the same time the system performance of a virtualized infrastructure may less effective than consumers expect. It is the same for costs. They might not be cut as much as It managers expect. The most important thing in process of managing a virtual infrastructure is businesses to improve the performance of their applications.

According to Bojan Simic, an analyst at research firm Aberdeen the management of virtual infrastructures is difficult because there is a lack of tools which enable companies to monitor and analyze virtual environments.

Aberdeen conducted a survey among 137 enterprises in December 2008 which found that IT companies manage much better their business-critical applications in physical environment than in virtualized one.

"If organizations don't have capabilities in place for the effective management of application performance, some of the benefits of virtualization could diminish," Simic said for Internet News.

The analytical agency predicts that some businesses may be unsatisfied of their investment in virtual infrastructure if they haven't calculated very precisely the results that the virtualization technologies can bring, especially in reducing data center costs and improving efficiency and utilization.

The study also found that keeping business-critical applications at peak performance may be harder in virtual environments. For example, when using tools to manage business-critical applications in physical environments, 62% of the companies participated to the survey reported improved mean time between repairs (MTBR). That figure dropped to 32% in the virtualized environment.

Aberdeen's analysts had an 85% success rate in identifying performance issues before they impacted end users, but only in setups that relied on a physical environment. The rate for virtual environments was 37%. 67% of participants say they have seen an improved application response times when managing business-critical applications in the physical environment, while the figure for virtualized environments was 39%.

Find more in Aberdeen's website as well as in
"Virtualization: Doing More Harm Than Good?".

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HP Virtualization For Servers

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"Hewlett-Packard, thanks to the acquisition of Compaq inherited what has become a pretty sophisticated set of system management tools, called Insight, that it has enhanced significantly over the years and expanded out from the ProLiant x86 and now x64 server line to HP's Itanium-based Integrity servers", says Timothy Prickett Morgan in an article published in TheRegister.co.uk.

The author says that today HP is putting some tweaks into the Insight tools in the arms race between server makers to make managing their systems easier and to also allow them to manage more than just uptime. To read more "HP gooses virtualization for servers" read the original article.


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