I’ve been a big fan of NSX, having been a user of it going back to 6.2. Naturally, I was very excited when NSX-T was announced and was very anxious to get it stood up in my lab. After procrastinating long enough, I finally got NSX-T setup and configured. One of the first things I…
We embarked on patching all of our hosts to 6.7 Update 3, which included our vSAN clusters. The first vSAN cluster to get the update is our four-node management cluster. After patching two hosts to 6.7 Update 3 (build 14320388), we noticed several vSAN alarms. At first I thought this was something similar to my…
Ah, another lovely Tuesday. The Monday fires have been put out, TPS reports have all been filed (with the new cover letter no less), and now we can get back to focusing on innovating. Not so fast. It looks like one of our hosts has disconnected from vCenter. This should be fun! All of the…
I was welcomed to my Monday morning with an interesting Solarwinds alert for one of my ESXi hosts: Direct, Local USB Direct-Access (mpx.vmhba32:C0:T0:L0) has a current status of Critical. Awesome! I love it when USB devices fail. But wait, something didn’t add up correctly. It was my understanding that none of my hosts are USB…
Cloud-init Cloud-init is a utility that is used to customize Linux VMs during first-boot initialization. The utility must be pre-installed in the operating system image used to create VMs. Cloud-init runs early in the boot process and configures the operating system on the basis of data that you provide (user data). You can use Cloud-init…
Hardware components (nodes and disks) can be removed from a cluster or reconfigured in other ways when conditions warrant it. Note: If the Data-at-Rest Encryption is enabled then before removing a drive or node from a cluster, test the certificates again by clicking Test all nodes and ensure that testing is successful and the status is Verified. In…
Start Node VMware Using the vSphere client, take the ESXi hosts out of maintenance mode Power On the CVM SSH into the CVM, and issue the following command: ncli cluster status | grep -A 15 cvm_ip_addr Validate that the datastores, are available and connected to all hosts within the cluster Stop Node VMware GUI Using…
Start Cluster Using the vSphere client, take the ESXi hosts out of maintenance mode Power on the CVM’s within the cluster SSH into one of the CVM’s, and issue the following command: cluster start Once completed, it will report back showing that all services are running on all the CVM’s within the cluster Validate that…