Tuesday, August 27, 2013
After our recent Exchange 2013 rollout, we noticed a problem with the Exchange 2013 servers (virtual guests on a HyperV cluster) experiencing clock drift and ultimately bugchecking (aka blue screen) with 0x000000ef errors.
These crashes and clock drifts occurred once every couple of days and quite aside from the crashes, clock drift is a very big deal on any kind of server these days. While the crashes were disruptive in their own right, the potential problems caused by someone having to wait a bit to access their mailbox or receive a message is nothing to the problems that could be caused by the timestamp on an email being a day or two out.
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Tuesday, August 27, 2013
This is perhaps another example of my recent comment about SCVMM making harder work of things than perhaps it should, but for all that I want to also say that it’s very likely that the root cause of this error was a mistake on our part. I also want to share this in case someone else has a similar problem.
On one of our clusters, I noticed that one or two guests were failing to migrate to a particular host.
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Monday, August 26, 2013
We’ve always been a VMWare shop.
As some of you might know, I’ve been involved in the Microsoft virtualisation stack in the past, writing guides for Virtual PC and bits and pieces for the server products, but on the server side of things, at least, VMWare have always had the lead. They’ve had the advantage of beating Microsoft (and others, but this article isn’t about those) to market and the advantage of being able to concentrate on virtualisation because it’s all they do.
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