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… 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
Snapshots for Maintenance or Maintenance for Snapshots…
During our last maintenance window for our VMware environment, my team updated VMware Tools, hardware and aligned vNUMA. So before we started this work we took snapshots of all of the VMs there were getting the updates. Fast forward a few days, and now we have 600+ snapshots that need to be deleted.… Continue reading
Selected for vExpert 2018 Program
On Monday, was I was excited to find that I received the notice I had been selected as a vExpert for 2018 from the VMware community leader. This was very happy news as this is the 4th year in a row that I have been selected as a vExpert. Its a great honor to be included in this program with the other prestigious members.… Continue reading
Use PowerCLI to Get Log File When Tools are Broken
Over the past weekend we had a massive push of VMware Tools and VM hardware updates. For the most part this push was smooth except for 2 machines. Of course these 2 machines are high priority development machines and rebuild just won’t work.
Trying to get a log file off a machine that doesn’t allow for the drivers to install becomes when trying to research the issue. … 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
The other night I had a task of upgrading 22 VMs with additional vCPUs and memory. I also had a maintenance window of 60 minutes to get this completed. So I wasn’t going to do this more than once, so I just wrote a simple PowerCli script that would handle this process for me.
So this script starts off identifying the servers that the work is going to be performed on.… Continue reading
New Method for Installing PowerCLI
Starting with the newest version of PowerCLI, 6.5.1, the method for installation has changed from the typical MSI file to using the PowerShell Gallery.
Step 1. Uninstall PowerCLI
The first step is to uninstall PowerCLI from your system. To do this use Add/Remove Programs.
Before Installing the New PowerCLI, the old installation needs to be removed. … Continue reading