With the release of VMware vCenter Server 5.1 an important new component has been released: the VMware Single Sign-On (SSO) server. It is one of the components of vCenter Server and is a requirement for installation. Through the SSO server a user now gets authenticated and receives a token that authenticates the user with other […]
Virtual Center
VMware HA Admission Control and VM reservations
Did you know about VMware HA admission control coupled to VM reservations? To be honest I thought I knew, but recently I was pointed to some details that showed me I was wrong. What I’m talking about is the cluster setting of “HA Admission Control” and how “Percentage of cluster resources reserved as failover spare capacity” […]
Adding ESXi host with dvSwitch through Auto Deploy fails
Been fighting some problems with VMware Auto Deploy lately which turned out to be an easy to solve issue. I installed the first host in the cluster, which would NOT be deployed with Auto Deploy but had a local hard disk in it. Configured it the way I like it, set all the logging and […]
Reminder: Keep an eye on your vCenter SQL DB
Past two months I’ve received three calls from customers who’s vCenter suddenly stopped working because their SQL database had stopped because the logs had filled up. Turns out few people regularly check the status of their SQL database. VMware has written some very good KB articles on what to do when your SQL DB fills […]
vCenter DRS rules bug when downgrading license
Normaly when installing a vSphere environment for new customers, I wait with entering the correct licenses until the environment is ready and can be moved to production. Until today I never ran into any issues with that since most of our customers buy Enterprise or Enterprise Plus edition. Today I discovered that after entering a […]