Identifying ESXi boot method & boot device

Identifying ESXi boot method & boot device
Posted on 01/09/2018 by William Lam

There was an interesting discussion on our internal Socialcast platform last week on figuring out how an ESXi host is booted up whether it is from local device like a disk or USB device, Auto Deploy or even boot from SAN along with its respective boot device? Although I had answered the question, I was not confident that we actually had a reliable and programmatic method for identifying all the different ESXi boot methods, which of course piqued my interest. With a bit of trial and error in the lab, I believe I have found a method in which we can identify the ESXi boot type (Local, Stateless, Stateless Caching, Stateful or Boot from SAN) along with some additional details pertaining to the boot device. To demonstrate this, I have created the following PowerCLI script ESXiBootDevice.ps1 which contains a function called Get-ESXiBootDevice.[…]

https://www.virtuallyghetto.com/2018/01/identifying-esxi-boot-method-boot-device.html

https://github.com/lamw/vghetto-scripts/blob/master/powershell/ESXiBootDevice.ps1

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