Opening disk with SAN transport mode in VMware Virtual Disk Development Kit hangs

Products

• VMware vSphere ESXi

Issue/Introduction

Symptoms:

• Enabling/disabling storage vMotion on a virtual machine hangs for a long time
• Trying to open the disk using Virtual Disk Development Kit(VDDK) with SAN transport mode hangs
• This is observed when virtual machine is connected through vCenter Server

Environment

Virtual Disk Development Kit 6.5
Virtual Disk Development Kit 6.7
Virtual Disk Development Kit 5.5
Virtual Disk Development Kit 6.0

Resolution

VMware is aware of this issue and working to resolve this in a future release.

Workaround:
To work around this issue, use one of these options:

• Use alternate transport mode like nbd, ndbssl, and hotadd instead of SAN transport mode
• If using SAN transport mode is mandatory, try connecting directly to ESX/ESXi host instead of vCenter server.
• Use thick provision type if you want to use SAN mode.