I don’t know what to say even, I was very surprised I won the Top vBlog voting this year. I do want to thank everyone who voted for me, it is very humbling that after 9 years of blogging I am still listed that high. 8 consecutive times right now, it is literally insane. Especially considering the enormous amount of quality blogs listed, people like Cormac Hogan, Frank Denneman, Chris Wahl, Scott Lowe and of course William Lam are folks I really respect for the unique quality content they constantly produce. Anyway, thanks everyone for voting, I truly appreciate it.
On twitter a tweet from Frank flew by pointing to an article which was written by one of my VMware colleagues: Matt Bradford aka @VMSpot. I hadn’t seen the article, while it was written in 2014 and I am surprised it never caught more attention. Matt describes in his post how the use and placement of thermal paste can influence VM performance. Who would have thought of that, and I am seriously impressed they managed to get to the bottom of this!
We haven’t had our HP BL460c Gen8’s with the new Xeon E5-2697 v2 12 core processors long. Last week we started to get e-mails from the help desk that users were complaining about sluggish performance in Citrix. Oddly, all of the XenApp VM’s happened to live on the same ESXi host. I say oddly because performance issues rarely seem to fall in line as they did here. We immediately evacuated the host and admitted it to the infirmary cluster.
It didn’t seem to matter if the CPU’s were under load or idle, the temperature would not stray from 69°c. This had to be an issue with the temperature sensors, I thought. So we pulled the host and removed the heat sinks so we could look at the CPU’s through a thermal camera we borrowed from engineering.
I am not going to post the full article here, go over to Matt’s blog and have a read. It is flabbergasting if you ask me, and definitely one of the coolest reads in a long time. And thanks Frank for bringing this one up. I just had to share in on a broader platform.
That reminds me, maybe it is time to bring back my “favourite reads” post I did for a long time on the VMTN Blog, but host it here instead. Hmmm. Ah well, lets make a start here and follow up with “Recommended reads” posts in the future:
- Compare and Contrast: Photon Controller vs VIC (vSphere Integrated Containers) by Cormac Hogan, explains the difference between these two different products/solutions. It is a great way to learn more about how VMware enables cloud native apps.
- New Home Lab Hardware – Dual Socket Xeon v4 by Frank Denneman. I am starting to wonder who is the craziest in terms of home lab. Maybe we should do a contest, not sure Frank will win as there are some folks who have 3-4 clusters at home like Erik Bussink. Nevertheless, I like how Frank breaks down each component of his new addition.
- Test driving ContainerX on VMware vSphere by William Lam. Always interested in learning more about what it is former VMware engineers are doing. Pradeep Padala is the CTO for ContainerX which William tested out and described in this article.
- VMware HCL in JSON format and VMware HCL check with PowerCLI by Florian Grehl. Very useful if you want to programmatically validate your current environment against the VMware HCL.
That’s it for now, enjoy reading.
As of today Essential Virtual SAN second edition paper copy is available on Amazon! If you are interested, pick it up today, note that there is also a Kindle version out there if you prefer that!
VMware’s Virtual SAN has rapidly proven itself in environments ranging from hospitals to oil rigs to e-commerce platforms. Along the way, it has matured to offer unsurpassed features for data integrity, availability, and space efficiency. Virtual SAN 6.x makes all-flash storage practical for even more use cases, while radically simplifying IT operations and supporting the transition to hyper-converged infrastructures (HCI). Now, the authors of Essential Virtual SAN (VSAN) have thoroughly updated their definitive guide to this transformative technology. Writing for vSphere administrators, architects, and consultants, Cormac Hogan and Duncan Epping explain what Virtual SAN is, how it has evolved, what it now offers, and how to gain maximum value from it.
If you want to order the paper version at a local book store, here are the ISBN details:
- ISBN-13: 978-0134511665
- ISBN-10: 0134511662
Last week I was at the German VMUG and at the show I bumped in to a couple of former VMware colleagues (Patrick Pannekoek and Valentin Hamburger) at the Hitachi / HDS booth. I made a joke about how they are now pushing boxes around and one of them said they could give me a cool demo of their Unified Compute Platform. We setup a Webex for this week and Valentin was kind enough to give me a demo of what Unified Compute Platform (UCP from now on) is capable off. I was very impressed to be honest and it does a lot more than I expected.
I am not going to spend a lot of time discussing the physical aspects, all those details are on their website and I feel they are “less relevant” than the integration aspect of a converged offering.
Hitachi UCP for vSphere is a converged solution and takes “converged” to a next level. I cannot call it hyper-converged as it uses traditional storage, but in terms of how they integrate it is more then just a “converged” I would say. First and foremost, there is complete integration with vCenter Server. And when I say integration, I mean that you don’t just get a plugin with some extra screens, but you have additional menu options which are also object/context sensitive. With that meaning that the options you have on a host object will be different from the options you have on a cluster level. UCP comes pre-configured and pre-installed using Auto-Deploy (stateless boots) and several management components installed on a two node cluster (about 10-12 VMs). This includes vCenter Server, Active Directory (when needed), SQL Server, MS WDS for bare metal deployments, Windows Server Update Manager (WSUS). Note that if you have a local AD you can also easily tap in to that, there is no need for a second Active Directory! [Read more…]
As John Nicholson was on a holiday I got to co-host the Virtually Speaking Podcast together with Pete Flecha. As a guest we had Chris Wahl and we spoke about many different things, but the key theme was Rubrik and the paper Chris and Cormac wrote that talks about Rubrik backing up VMs that sit on top of VSAN. I think it was a fun conversation and just wanted to share it with you here. For those who haven’t listened to Virtually Speaking Podcast yet, make sure to subscribe and catch each episode as they are entertaining and educational at the same time if you ask me!