Category Archives: VMware

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 »

My favorite VMware fling tools

VMware releases useful tools named flings. Those tools help not only in daily activities but also simplify migration or upgrade vSphere environment. Some tools are included in later version of VMware product after testing and solving potential problems/bugs during "fling phase" 🙂 In this post I will show my favorite fling tools that I often use. vSphere HTML5… Read More »

FTF 001: Replacing 3rd async with VMware inbox driver?

This post begins my series: "From the Field" about issues or opportunities that I have faced during doing projects for my customers. Recently during implementing VMware vSAN for my customer, we needed to replace 3rd async driver with VMware inbox driver (yes, something totally opposite what usually is done). In this post, you will find answers for the… Read More »