The IT Stories

The Good, the Bad and the Ugly

  • Notes from the field: vCloud usage meter doesn’t meter NSX

    A while back I had an support case with VMware support regarding NSX integration and that it wasn’t getting metered by vCloud Usage Meter in a customer deployment. Turns out that Usage meter looks for a Global Transport Zone before the discovery of a Universal Transport Zone and metering can occur. So if you are…

  • Notes from the field: Windows 2019 Storage Replica lock-up on VMware

    On one of my latest projects consisting of a new Windows Server 2019 setup on VMware and making use of Storage Replica in a server to server setup for replicating home drives and profiles I came across a random lock-up of the VM and by that inaccessible shares. The setup was all working until the…

  • Notes from the field: Hyper-V to VMware migrated VM’s cannot install VMware Tools

    One of my last projects I needed to convert Hyper-V VM’s to VMware, this all went fine with the offline capability of vcenter converter and the migration succeeded. Only after trying to install the VMware tools this would hang on starting the VGauth services and several other dependencies. For reference the VM’s in question are…

  • Notes from the lab: Citrix ADC Native OTP and AdminSDHolder

    While doing some lab work I came across an issue that the Domain Admin accounts could not register on the manageotp site while Domain Users could. This got me figuring it out. For the use of Native OTP on the ADC we need to use an bind account for Active Directory which has the appropriate…

  • Notes from the field: vCenter cannot validate SSO domain

    Came across a peculiar issue when adding an second vCenter to the same SSO domain and enable ELM. The first deployment worked like a charm and the second errored out with the following error: It turns out there is a known bug when using uppercase FQDN in the configuration wizard, the solution is to put…

  • Notes from the field: UEM/vIDM integration caveats

    Not too long ago I encountered some issues when configuring UEM and IDM integration. When providing the vIDM URL in UEM for configuring the integration it would error out with below error: After some troubleshooting it appeared that the access policies where not properly configured as in the last rule in the default access application…

  • Notes from the field: vIDM and o365 modern authentication delay

    Just a quick win blog to mention and give a heads-up that when you are in the process of configuring vIDM and o365 you might encounter native clients prompting for authentication and a big ass delay when you flip over the authentication and the requested domain from managed to federated with vIDM. This might be…

  • Notes from the field: VMware vCenter /dev/mapper/core_vg-core full

    Not too long ago I’ve encountered an vCenter instance blowing up the /dev/mapper/core_vg-core with gigabytes of java dump errors.. Just for reference the customers setup is an dual SDDC with respectively an vCenter at each site comprising of vCenter 6.5 U2 and embedded linked mode enabled. In troubleshooting mode I’ve encountered the following two articles:…

  • Notes from the field: VMware vCloud Usage Meter vROps cleanup not working

    If you ever are in the proces of cleaning up your vRealize Operations Manager instances and are using vCloud Usage Meter as well you might find yourself in a situation that Usage meter keeps referencing an old node which is deleted. There is a nice explanatory blog available from VMware to resolve most part of…

  • Notes from the field: vCenter VCSA 6.5u2 SEAT cleanup

    This is a quick blog to show how an SEAT database failure can be cleared after an sporadic growth and increase to the events part of the SEAT DB in VCSA. I’ll explain the issue origin in an upcoming blog, but in a nutshell the 20gb was reached within six days and crashed the vCenter…

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