With VMware Log Insight you can create great queries. For some environments we have known bugs and since we can’t always update as fast as we would like, I’ve built some simple queries to alert me whenever the bug is more likely to kick in. For example, I have a query that warns me by e-mail […]
Lately I have seen a number of VMs going down after the backup has finished and snapshots get removed. At some point when cleaning the snapshot, the ESXi host decides something is wrong and then brings down the VM. After this we’re unable to power on the VM and receive the error: “Cannot open the […]
Our environment is fully built using VMware Auto Deploy 5.1. All the clusters have their own ruleset and we’re very content on how easily we update our hosts and deploy new hosts. However, recently we ran into a major issue with Microsoft Cluster Services inside VMs in combination with VMware Auto Deploy. In a scenario […]
During my migration from vSphere 4.1 to vSphere 5.5, I ran into an issue I had never experienced before. When your VMware HA network is partitioned, vCenter will not let you perform VMotions. At first I was surprised but after some searching I learned the reasons behind it and it makes complete sense now.
At my current customer I was upgrading their vSphere 4.1 environment to vSphere 5.5. When installing and configuring the first ESXi 5.5 host, I noticed a difference in the Path Selection Policy (PSP) between the ESX 4.1 hosts and the ESXi 5.5 host. Each host is connected to two Hitachi storage arrays, each a different […]