IBM TotalStorage Enterprise Storage Server FlashCopy Function with the VMware ESX 2.5 Server
Short Description
Today, many businesses have become increasingly dependent on data storage and require a high level of availability to support 24 hours a day, seven days a week (24×7) operation. A lengthy outage could lead to significant financial losses, loss of credibility with customers, and possibly even a total failure of a business. Therefore, the ability to support high availability for the major applications is more often than not a necessity for business survival. A key component of a highly available system is the storage subsystem. It is essential that high availability of data is supported, and that downtime for data backup and software maintenance is minimized or more preferably eliminated.
Website: www.vmware.com | Filesize: 661kb
No of Page(s): 25
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Virtualization for High-Performance Computing
Short Description
The specific demands of high-performance computing (HPC) often mismatch the assumptions and algorithms provided by legacy operating systems (OS) for common workload mixes. While feature- and application-rich OSes allow for exible and low-cost hardware configurations, rapid development, and exible testing and debugging, the mismatch comes at the cost of | oftentimes significant | performance degradation for HPC applications.
Website: www.research.ibm.com | Filesize: 76kb
No of Page(s): 4
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Virtualization Know your options on Ubuntu
Short Description
Multiple technologies exist to provide a virtual environment:
• Emulation
• Binary translation
• Paravirtualization (with or without hardware support)
• Containment
Mutiple points of view need to be examined:
• Host (server)
• Desktop
• Guest
Website: assets.en.oreilly.com | Filesize: 757kb
No of Page(s): 25
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Understanding Full Virtualization, Paravirtualization, and Hardware Assist
Short Description
In 1998, VMware figured out how to virtualize the x86 platform, once thought to be impossible, and created the market for x86 virtualization. The solution was a combination of binary translation and direct execution on the processor that allowed multiple guest OSes to run in full isolation on the same computer with readily affordable virtualization overhead. The savings that tens of thousands of companies have generated from the deployment of this technology is further driving the rapid adoption of virtualized computing from the desktop to the data center. As new vendors enter the space and attempt to differentiate their products, many are creating confusion with their marketing claims and terminology. For example, while hardware assist is a valuable technique that will mature and expand the envelope of workloads that can be virtualized, paravirtualization is not an entirely new technology that offers an “order of magnitude” greater performance.
Website: www.vmware.com | Filesize: 1431kb
No of Page(s): 17
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A Comparison of Software and Hardware Techniques for x86 Virtualization
Short Description
Until recently, the x86 architecture has not permitted classical trap-and-emulate virtualization. Virtual Machine Monitors for x86, such as VMware R Workstation and Virtual PC, have instead used binary translation of the guest kernel code. However, both Intel and AMD have now introduced architectural extensions to support classical virtualization. We compare an existing software VMM with a new VMM designed for the emerging hardware support. Surprisingly, the hardware VMM often suffers lower performance than the pure software VMM. To determine why, we study architecture-level events such as page table updates, context switches and I/O, and find their costs vastly different among native, software VMM and hardware VMM execution.
Website: www.vmware.com | Filesize: 153kb
No of Page(s): 12
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Using Agile Programming Techniques for the Enterprise
Short Description
Information management has a cyclical history that resembles the fashion cycle of men’s ties; hold on to a tie long enough and it comes back in style. In the 1960s mainframe era, centralized processing ruled. Controlling access to resources and code efficiency were key IS goals. The introduction of the personal computer ushered in the distributed processing age. Users customized the environment and hardware became relatively cheap. Now that server based peer networks dominate the firm, centralized principles are being revisited as data integrity and controlling access are once again a priority.
Website: www.clarionmag.com | Filesize: 95kb
No of Page(s): 17
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How to improve your tennis, your management skills and your organisations results
Short Description
The tennis coach smacks another ball over the net, and – once again – I run a few steps, stretch, swing and wallop it back. We’re doing what works. My tennis is improving. It’s a miracle. And the great thing about this coach is that he focuses only on what’s going well. He notices what I’m doing right and takes a great interest in my shots that sing off the racket and whiz into the corners of the court.
Website: www.thesolutionsfocus.co.uk | Filesize: 141kb
No of Page(s): 10
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