The ramblings of a computer geek
We had some older VMware hosts where there is a warning about a host being vulnerable to a particular CVE relating to the processor type, in this case the fix was not possible, but we still wanted to suppress the warning. When applying the normal Host Profile it was grumbling about this shell warning, so … Read more
Infrastructure as Code (IaC) is managing infrastructure using a DevOps type methodology. Where the current configuration of your infrastructure is represented in code, any additions, changes or deletions are also made through this code. There are various methods to codify your infrastructure, some proprietary like AWS Cloudformation, others are generic like Ansible or Terraform. The … Read more
Keeping a VMware ecosystem up to date is a challenge. Ensuring you are running a supportable and stable combination of VMware ESXi, device drivers, extensions and hardware firmware is a lot of moving parts to keep “in synch”. Essentially the version of the device drivers needs to be supported by VMware ESXi, the version of … Read more
A fairly common error with a fairly easy fix. When adding the Service Pack for Proliant (SPP) I was seeing this error message: “some error occured while online deport registration” The error appears here, the “important notes” gives you the clue to the fix. You need to ensure that your iLO Amplifier appliance(s) are not … Read more
If and when a log disk begins to fill up you will see messages such as “Log Disk Exhaustion on <vcenter name>”. Within the vCenter console and VAMI you can see the log drive is running low on space. If you are using VMware HA for vCenter, i.e. two vCenter appliances, you will need to … Read more
We had a VMware ESXi host start to display this following a networking instability issue. The host was checked and it did indeed have network redundancy, so this message was not correct, and appeared to be stuck warning about a condition that did not exist. Resolution is given in: https://kb.vmware.com/s/article/2008602, and in our case just … Read more
The Microsoft licensing agreements are made based on the number of processor cores (or sockets) that are in use by the physical or virtual hosts that make use of Microsoft software. The Microsoft licensing allows for a VMware ESXi host’s CPUs (or cores) to be licensed instead of the vCPU (virtual CPUs) of each virtual … Read more
The array OS 5.1.x and later supports iSCSI Group Scoped Target (GST) on iSCSI arrays (this is new), previous to this it was using VST Volume Scoped Targeting. GST reduces the number of individual host connections you need to configure and manage, which saves you time and also ensures you don’t hit limitations in the … Read more
The Path Selection Policy is set for devices to determine how the ESXi host will utilise the paths to the storage, for example, you can have “Fixed” or “Round Robin” or “Most Recently Used”, you can also have storage vendor provided ones such as “NIMBLE_PSP_DIRECTED”. The scripts and commands I’ve found keep mentioning “Multipathing”, if … Read more
We had a very odd situation occur on one of our VMware ESXi 7.0.3 clusters (VMware ESXi, 7.0.3, 20328353), which is using iSCSI with HPE Nimble Storage. Some new storage was presented to the hosts via iSCSI. The first host was scanned, the datastore prepared as normal. Once complete, then started to perform a re-scan … Read more