At the Dutch VMUG, together with my colleague Jos Vanaubel, I presented about how to do cheap disaster recovery using only PowerShell. At the London VMUG I held the same presentation again and promised to upload the scripts to my blog. Well, here it is in PDF format:
vms
Changing NetApp storage policies from non-ALUA to ALUA
My latest customer was still running on VMware ESX 3.5 and Virtual Center 2.5 and asked me to upgrade their environment. Their whole environment was running on NetApp storage and for ESX there is a change in the Storage Array Type Policy (SATP) and the Path Selection Policy (PSP) when moving from ESX 3.5 to […]
Large Pages, Transparent Page Sharing and how they influence the consolidation ratio
Everybody talks about the benefits of Transparent Page Sharing in vSphere environments and how they reduce the amount of memory needed in your vSphere host. Thanks to Transparent Page Sharing memory overcommit in a production environment has become mainstream. Not long ago I’ve written these two posts: – “Memory overcommit in production” http://www.gabesvirtualworld.com/memory-overcommit-in-production-yes-yes-yes/ which explains […]
Memory management and compression in vSphere 4.1
With vSphere 4.1, VMware released a great new feature called Memory compression. At first, after reading the release notes I thought memory compression was just one step before swapping to disk would occur. However, after reading the whitepaper “Understanding Memory Resource Management in VMware ESX 4” I learned some more details I want to share […]
Homelab for VCP and VCDX
If you want to study for your VCP or VCDX exams, you really need a lab in which you can test what the study material is talking about. Hopefully you have a test environment at work that you can use, but if not, this blog post will help you put together your own homelab. Before […]