VMbytes

Because virtual machines work by time-sharing host physical hardware, a virtual machine cannot exactly duplicate the timing behaviour of a physical machine. This leads to the timekeeping problems explained in the VMWare White Paper about Timekeeping in Virtual Machines that results in inaccurate time measurements within the virtual machine. This affects ALL performance metrics that rely on the operating system clock time to keep track of time which includes system counters like CPU or I/O Utilization. Performance Management solutions therefore run into the problem that the monitored metrics are inaccurate and can lead to incorrect enforcement of SLAs or wrong assumptions about application performance.

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It todays tough economic times, most companies are looking for ways to reduce costs and cut operating expenses. Having seen the significant savings that can be had with server virtualization, many IT departments are eyeing storage virtualization as another way to rein in their budgets.

Similar to server virtualization, storage virtualization relies on the consolidation of storage systems so that there are fewer physical devices to manage. Additionally, storage resources can be used more efficiently via storage virtualization, and less storage capacity needs to be purchased. With these potential savings in mind, this video will give you a few tips to help you drive your storage virtualization savings.
- Video Content….

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By Wendy Weiss
On a cold call you have approximately 10-30 seconds to grab your prospects’ attention—and you won’t get a second chance. Read on to discover how to gain your prospects’ attention…
I was eating lunch. The phone rang and thinking it might be a client calling (and also, let’s face it—I’m a little compulsive) I bolted to my desk and grabbed the receiver.
Instead of my client, on the other end of the line was a perky person telling me that their company provides high-speed Internet […]

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Cloud computing is, at its core, about using resources in the most operational and financially efficient manner possible. It’s about spreading resources around and sharing them to achieve greater scalability with fewer investments in hardware and software. But what if you aren’t moving to cloud? Or virtualization? Or perhaps you are, but the benefits won’t be really seen until you actually get enough resources shared across your organization. Isn’t there any other way to better utilize the resources you have now to improve the bottom line?

Yes, yes, there is. And the best part is that these methods will increase the efficiency of resource utilization in any architectural model.

“Server” offload technologies are applicable to any server – physical or virtual The efficiencies gained in server resource utilization and increase in VM densities are not peculiar to a cloud environment. In fact, the offload capabilities of an application delivery controller (SSL, TCP session management, compression, caching) can benefit any “server” in any environment. Because the offload capabilities are applied at the transport protocol and application protocol layers, these benefits are universal to web and application servers whether residing in virtual machines or on physical hardware, in the cloud or in a traditional data center.

Proactive security measures Whether it’s stopping common web application attacks or SPAM from entering the network, proactive security measures can make more efficient use of resources available by preventing them from spending time on “bad” or “illegitimate” traffic. Stopping attacks and SPAM and other malicious content at the perimeter of the data center prevents resources on the network, on the servers, and in the storage systems from being used to transport, process, and store what is nothing more than garbage. This improves the efficiency of the entire infrastructure and does not require a cloud model to achieve.

Automated Storage Tiering Automated storage tiering can automatically move less frequently accessed files to less expensive storage arrays while moving more frequently accessed files to faster, more expensive storage. Automating such processes mean administrators need not manually determine which file goes where, or optimize storage based on performance and cost by pulling out a slide ruler and calculating costs per megabyte. The system automatically determines how to best utilize the storage based on cost and performance and acts on behalf of the storage administrator, like a digital storage maid service that never needs to be reminded to sweep the floor.

WILS: Write It Like Seth. Seth Godin always gets his point across with brevity and wit. WILS is an ATTEMPT TO BE concise about application delivery TOPICS AND just get straight to the point. NO DILLY DALLYING AROUND.