It is clear that once virtualization started delivering hard dollar CAPEX and OPEX savings to IT executives that these executives wanted this trend of “more for less” to continue. Most IT organizations are far from 100% virtualized, and there are still substantial cost savings to be gained from further virtualization. However, forward thinking vendors (like Cisco, EMC, and HP) see the handwriting the wall and are taking steps now to be able to deliver solutions at reduced costs to their customers.
In the article End-to-End Virtual Machine Backup I mentioned the new VMware Workstation 7.0 feature that creates an encrypted disk but in reality it is an encrypted virtual machine, which also implies encrypting the virtual disk. This one option to VMware Workstation is something that is needed within VMware vSphere as well as the other hypervisors. Encrypting virtual disk data can add to the overall security stance based on the encryption technology employed. So what do we need with virtual disk encryption?
Quite a bit has gone on in our industry in the last year. While this is not intended to be a comprehensive review of all that has occurred, we hope that we have captured the important events that have shaped virtualization and cloud computing.
There are two very recent vendor initiatives that hearken back to the days of single vendor tightly integrated systems. The first is Oracle’s pending acquisition of Sun. The second example which has potentially far more impact upon VMware is the recently announced EMC/Cisco Vblocks.
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The problem is that neither VMware, nor any disk array vendor has explicitly announced support for it.
This technique operates completely transparent to the vSphere environment, as only a single LUN is presented to the two hosts. So a single vMotion and a “logical” storage vMotion (actually hyper-speed synchronous dual write) are combined into a single vMotion which only takes a few minutes or seconds to execute.
The number one reason to adopt FCoE today is to reduce heat, energy, cable plant and space. Data center networks are converging, but are not converged.
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I/O virtualization prominent at VMworld 2009. Whether it can displace Cisco at the top of the rack remains to be seen.