esxi

ESXi Host Certificate Renewal Doesn't Include Full Chain

I have just successfully migrated one of our vCenter 6.0 Windows servers to a brand new 6.7 U1 vCenter Server Appliance. After this migration I configured VMCA to be a intermediate certificate authority to our internal CA. The process for this is relatively straight forward, however, there appears to be an issue in 6.7 (and potentially 6.5) whereby hosts which are subsequently issued a new SSL certificate fail to use the full certificate chain, and therefore still show as untrusted in the browser when accessing the ESXi host client.

  • Ryan Kowalewski
    Ryan Kowalewski
2 mins
powercli

Storage DRS and PowerCLI Part 1: Get VM Overrides

Introduction With Storage DRS (SDRS) enabled datastore clusters, we have many options to configure overrides on a per-VM basis. For example disabling SDRS for a specific VM or forcing SDRS to keep a VMs VMDK files on separate datastores (anti-affinity). However, one thing which has caught out our 2nd line team recently and caused us some SDRS performance issues is that when you manually Storage vMotion (svMotion) one or more VMDK files and pick a specific datastore as the destination, you have to tick a box that disables SDRS for the particular VM.

  • Ryan Kowalewski
    Ryan Kowalewski
7 mins
vmware

ESXi Loses Connectivity to VMFS Datastores.

Introduction This post explains my recent experiences with certain hosts losing access to some of our VMFS datastores. Hopefully it will help someone avoid the pain that I have been through in diagnosing this issues! The Symptoms I was initially made aware of this issue as it appeared that certain hosts were losing connectivity to VMFS datastores. Upon investigation I found the following events being logged very frequently against multiple hosts.

  • Ryan Kowalewski
    Ryan Kowalewski
6 mins