Startup Intro: AetherStore

Every once in a while you see a solution by a startup and you get all excited. AetherStore is one of those type of solutions. The funny thing is that AetherStore is not directly related to my day-to-day job, but I can fully relate to their pitch. So what is AetherStore and who are the folks behind it? AetherStore was … [Read more...]

VMware vCenter Multi-Hypervisor-Manager 1.1 is out, sign up for it!

VMware vCenter Multi-Hypervisor Manager 1.1 is a minor release with the following new capabilities: Migration of virtual machines from Hyper-V to ESX or ESXi hosts. Support for the latest Microsoft Hyper-V3 hypervisor (as well as the earlier versions). Increased scalability with regards to the number of supported … [Read more...]

Startup Intro: SoftNAS

Last week I had a chat with Rick Braddy from SoftNAS. Some of you might know Rick from when he was the CTO of a hosted virtul desktop company called Virtual-Q and others from when he was the CTO of Citrix for XenApp and XenDesktop. Today Rick is the CTO for SoftNAS, a software and appliance based storage solution. Rick … [Read more...]

What is: Current Memory Failover Capacity?

I have had this question many times by now, what is “Current Memory Failover Capacity” that is shown in the cluster summary when you have selected the “Percentage Based Admission Control Policy”? What is that percentage? 99% of what? And will it go down to 0%? Or will it go down to the … [Read more...]

VMworld 2013 call for papers open!

VMworld 2013 Call For Papers opened today. I know many of you are excited about this and hoping to have a session accepted at this top-of-the-bill event. Personally I always submit various sessions and for the last years always had atleast one of them excepted, and some years even multiple. So the obvious question I … [Read more...]

Top 25 bloggers 2013 results are out…

The top 25 bloggers 2013 voting results are out again. This year the competition was insane. With newcomers like Cormac Hogan and Chris Wahl, but also old-timers like Chad Sakac, Scott Lowe, Eric Sloof and of course Frank “resource management” Denneman. First of all, a BIG THANK YOU to Eric Siebert who took … [Read more...]

Cool tool update: RVTools 3.5

Yes, there is it is again… an updated version of RVTools. Rob just emailed me and provided me with a nice list of enhancements: RVTools Version 3.5 (March, 2013) On vInfo tabpage new field: Resource pool On vInfo tabpage new field: Consolidation needed. On vCPU tabpage new field: Number of cores per socket New … [Read more...]

Using das.vmmemoryminmb with Percentage Based admission control

I had question today about using the advanced settings to set a minimal amount of resources that HA would use to do the admission control math with. Many of us have used these advanced settings das.vmMemoryMinMB and das.vmCpuMinMHz to dictate the slot size when no reservations were set in an environment where the … [Read more...]

Why the world needs Software Defined Storage

Yesterday I was at a Software Defined Datacenter event organized by IBM and VMware. The famous Cormac Hogan presented on Software Defined Storage and I very much enjoyed hearing about the VMware vision and of course Cormac’s take on this. Coincidentally, last week I read this article by long-time community guru … [Read more...]

Write-Same vs XCopy when using Storage vMotion

I had a question last week about Storage vMotion and when Write-same vs XCopy was used. I was confident I knew the answer, but I figured I would do some testing. So what was the question exactly and the scenario I tested? Imagine you have a virtual machine with a “lazy zero thick disk” and an “eager … [Read more...]