When working with VMware vSphere AutoDeploy and creating or editing rules I sometimes get the following error when running a Get-DeployRule: “Failed to convert ItemList to VI Object: System.NullReferenceException: Object reference not set to an instance of an object” (See screenshot). Often I also have one or more rules not working correctly then. Turns out […]
VMware
vRAM licensing remains for VMware vSphere Hypervisor 5.1
UPDATE: After I published this post I got a response from VMware stating there was an error on their website. The free hypervisor is limited to 32GB physical RAM, there is no longer a vRAM limit. Their website originally reported 32GB vRAM and 32GB physical limit. This has now changed to “For vSphere Hypervisor 5.1, […]
CloudPhysics for your permanent health check
A few weeks ago I first saw some mention of CloudPhysics by Duncan on Yellow-Bricks. Duncan’s blogpost describes pretty well what CloudPhysics does (so read it), but in short: CloudPhysics will collect data from your vCenter, upload that data to the CloudPhysics servers and analyse that data and and give you insights and key take-aways. […]
How too many vCPUs can negatively affect performance
Customer with small vSphere environment of just two hosts had performance issues and they asked me to investigate the situation. When looking at the technical specs at first glance, you would suspect that this configuration should work. With just two hosts, each dual Quad core CPU, the enivornment had a total of 16 CPU cores. […]
Licensing VMware SRM 5.0
Had a small issue with VMware Site Recovery Manager (SRM) 5.0 today when performing a real failover of a single VM with a customer of mine. Nothing big, just using one VM one protection group, showing them that a failover would work. After recovery went fine, I started the reprotection and ran into a licensing […]