Cisco UCS PowerTools and PowerShell
As I mentioned in a previous post, we are upgrading our infrastructure and we are using Dell EMC VxBlock. So far this upgrade is going fairly smooth, but we are still at the very beginning of the process. So once I found out that the VxBlock was configured to contain UCS hardware, I began looking to see what Cisco had to offer for PowerShell modules to help manage the new hardware that we are getting. … Continue reading
PowerCLI to get Virtual to Physical CPU Ratio
I was in a meeting today, and was asked, “What is the current virtual to physical CPU ratio?” I didn’t have an answer for this question, so I asked PowerCLI for the answer.
(get-cluster $ClusterName | Get-vm | Where Powerstate -eq “PoweredOn” | Measure NumCpu -sum).sum / (((Get-cluster $ClusterName | Get-vmhost).extensiondata.summary.hardware | Measure -Property numCpuCores -Sum).sum)
This will be a handy script that can be ran rather quickly. … Continue reading
What’s your (host)name?
While digging through Log Insight on a problem, I found a new one. A large majority of VMhosts were not configured with a proper hostname. This was also backup by the vCheck report that gets generated weekly. The hosts were configured with ‘localhost’ as the hostname, which makes this a huge pain when trying to follow the logs.… Continue reading
PowerCLI to Change Default Multipathing Policy
As it would seem in my environment the default multipathing policy changes with the seasons. We have become very accustom to making these changes based on the newest whitepaper from the storage vendor.
To change the default multipathing policy, you will need to know the name of the Storage Array Type Plugin (SATP) that you need to change the Native Multi-Pathing (NMP) policy for.… Continue reading
How to Enable SSH for VMhost with PowerCli
To enable SSH:
To disable SSH:
– Stuart… Continue reading
Lenovo Warranty Information Lookup
To continue with the theme of my last post, I’m going to show how to gather the warranty information for Lenovo Servers. This was a bit tricky as this isn’t an API call, but more of a website parsing.
Getting the Lenovo Server information
To be able to perform this warranty lookup, the server information will need to be retrieved, and what a better way than getting it from the VMhosts themselves.… Continue reading
PowerCLI to Find Datastore with missing VM
During the last maintenance window at work, we starting having issues with vCenter, so to resolve the issues vCenter services were restarted. After the vCenter services came back up, I noticed one of the servers on a host had lost it connection. To make things worse, the datastore for the VM changed from the human readable format to location name.… Continue reading
I was recently asked to gather the vMotion IPs for all of the hosts in our environment. We have about 80 or so VM Hosts, so this was a job for PowerCli. Below is the script.
vMotion IPs Gather from the Script
First there needs to be a place to put all of the information that is going to be collected. … Continue reading
Have you been wanting to learn PowerCLI but don’t have a test environment to practice with out the fear of breaking live production? That is where this hands-on-learning (HOL) lab from VMware can come in handy. I personally worked through this HOL and found that the information that was provide to be very thorough to help with beginners wanting to start with PowerCLI. … Continue reading
After finishing the last post and starting to use it after limited testing I found that my script wasn’t filtering out the Datastores as expected. This information was presented to me via our storage team. So I have went back to the Integrated Scripting Environment (ISE) to resolved my issues.
This is now how to properly get the unused RDM LUNs from your VM cluster.… Continue reading