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VMware's VAssert: Record and Replay in your Data Center..someday you will!

Getting up and talking about "alive and breathing" data center is not just a dream but is something a CIO so desperately needs for his business. When VMware first debuted or spoke about the record and replay, I though to myself: "Hmmm...the agile data center is not far away!"

These tools will make us do a lot of root cause analysis and eventually there won't be a hiaat between the business and the IT folks. It will all be one. That is what I have been calling about the great convergence of the business and the often misunderstood and even mischevious IT domains.


Anyways check this out:

VAssert is a new API, debuting in Workstation 6.5, that uses the Record and Replay functionality that we've been talking about for some time now. As you can tell by its name, VAssert is a relative of your standing programming ASSERT debugging tool, but by delaying assert-checking until later when the exact machine instructions are replayed, it can be very fast. That's some virtualization Deep Magic.

VMware engineers Weiming Zeng and Min Xu give us this guest post on demonstrating VAssert within Apache, and include the Apache patches they used so you can give this a try at home.

For now read the rest here

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