vExpert 2017: NSX and vSAN awarded.

Some days ago  VMware announced a list of vExperts 2017 on NSX and vSAN track.  I would like to announce that I am honored to be selected this year! Just for a quick reminder on vExpert: The VMware vExpert is an annual designation for people who have given back to the community of VMware users by sharing their technical… Read More »

Mixed version of ESXi hosts in the vSphere cluster?

I had a discussion with my colleague about mixed version of ESXi hosts. Our customer needed to migrate their vSphere environment from version 5.1 (caused of End of Support Life) to the latest version supported on their physical infrastructure. As they did not build a cluster based on identical physical servers and two of servers are not supported… Read More »

FTF 002: vCenter Server Appliance (VCSA) fails - ERROR: duplicate key value violates unique constraint pk_vpx_guest_disk

Today I was informed that there were some logging problems to vCenter Server (VCSA). I did a short investigation via SSH and check if all required services are running and I found out that vpxd is down. I checked  vpxd.log (tail -100 /var/log/vmware/vpxd/vpxd.log) and found that there were some db errors and: Panic: Unrecoverable database error. Shutting down… Read More »