- - My colleague Craig Risinger wrote the below and was kind enough to share it with us. Thanks Craig! A quick primer on VMware Reservations (not that anyone asked)… A Reservation is a guarantee. There’s a difference between reserving a resource and using it. A VM can use more or less than it has reserved. Also, if [...]
- - I just received a request from our Product Management team. Gil Adato is is working on the next generation of DPM and is seeking DPM current and past users and he asked me to post the following message on my blog. I hope you can help Gil and VMware taking DPM to the next level! Dear [...]
- - We had a discussion internally around memory limits and what the use case would be for using them. I got some great feedback on my reply and comments so I decided to turn the whole thing into a blog article. A comment made by one of our developers, which I highly respect, is what triggered [...]
- - Don’t know if anyone noticed it or not but with the latest set of patches VMware changed the “Delete All” mechanism that is part of the Snapshot feature. I wrote multiple articles about the “Delete All” functionality as it often led to completely filled up VMFS volumes when someone used without knowing the inner workings. [...]
- - A couple of months ago I wrote this article about a future feature that would enable HA to recover from a Split Brain scenario. vSphere 4.0 Update 2 recently was released but the release notes or documentation did not mention this new feature. I had never noticed this until I was having a discussion around [...]
- - I just received an email about the below Survey. I would like to ask everyone who is using the Java API for vSphere of VI3 to take it, also those who aren’t using it actively due for instance to the lack of support but have a special interest are invited to take it. VMware would [...]
- - The amount of retries is configurable as of vCenter 2.5 U4 with the advanced option “das.maxvmrestartcount”. My colleague Hugo Strydom wrote about this a while ago and after a short discussion with one of our developers I realised Hugo’s article was not 100% correct. The default value is 5. Pre vCenter 2.5 U4 HA would [...]
- - This would be a good way to spent your time: Title: VIX APIs – Managing and Automating Guest OS We will show examples of how the VIX API can be used to develop tools for managing guest environments in VMware products. Included will be a demonstration of proof-of-concept tools that monitor processes and transfer files [...]
- - I was “fortunate” enough to be part of the group of people who were invited to do the VCAP-DCA exam. Some of the others like Jason Boche and William Lam who recently did this exam already shared their experience. The VCAP-DCA Exam is the follow up to the VI-3 Enterprise Exam which I passed two [...]
- - Today I received a question around the difference between IOPS and CMDS/s. The reason for this was the high value of CMDS/s in “esxtop” which exceeded the expected amount of IOPS the disks could actually digest. I thought it would useful for everyone to know what the difference is: IOPS = Input/Output Operations Per Second [...]
About the Author
My name is Bobby Shea and I am an Infrastructure Practice Team Lead for EMC Application Consulting. When I am not working I enjoy riding my motorcycle with my wife, spending time with my family, watching NHL Hockey and exploring new technology.
