Hello,
There a know bug in ESXi6.0 which causes virtual machine stun while extending thick eager disk.
As per below link, I tried to convert the disk to lazy zero before extending it.
VMware KB: Extending an eager-zeroed virtual disk causes virtual machine stun in ESXi 6.0 GA/ 6.0 U1
But even after svmotion with converting a disk to lazy zero, it was showing thick zero in vCenter, web client and command line. I then proceeded to extend a disk from 50GB to 100GB which cause my VM to stun.
Is there any other workaround to extend a thick eager zero disk without causing a vm to stun in ESXi6?