Last week, I found a deal I could not pass up. B&H Photo has a deal on a Drobo for $299 though 6/30/2010. If you’ve never heard of a Drobo, it is an external storage enclosure from Data Robotics that offers some enterprise-class, automated mirroring/striping for your data across multiple hard drives. Data Robotics calls [...]
Since we began upgrading our clusters to ESX4, we have been having strange “failed physical path” messages in our vmkernel logs. I don’t normally post unless I know the solution to a problem, but in this case, I’ll make an exception. Our deployment has been delayed and plauged by the storage issues that I mentioned [...]
HP provided us with the best practices document for ESX4 connected to an HP EVA array. There is a major change in ESX4. For the first time, ESX is ALUA (Asymmetric Logical Unit Access) aware. (See this post on Yellow Bricks for more detail about ALUA.) ALUA allows the array and ESX to determine the [...]
Short version: To grow a VM with and RDM in virtual compatiblity mode, you must VMotion the VM after performing your storage rescans to recognize the additional space. After the VMotion, the guest OS will see the additional space and be able to access it.
As in my post about Lessons Learned on ESX4 rollout, we had a pretty serious hiccup with our storage and the ESX systems in December while trying to bring up our ESX4 environment. The primary trouble uncovered was what I’ll call “controller ping-pong”. An EVA normally has two (maybe more, I’m not primarily a storage [...]
Following my November upgrade of Flex-10 VirtualConnect on my blade enclosure, I have begun my rollout and upgrades to ESX4 on a new blade cluster as well as one existing cluster. There are quite a few lessons that I’ve learned on my roll-out.
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