HotAdd mode throws error while using SATA controller with proxy virtual machine

Products

• VMware vSphere ESXi

Issue/Introduction

Symptoms:

• HotAdd mode throws error while using for backup.
• VDDK log files contains entries similar to:
  
  Log: 2017-06-02T16:19:41.687+02:00 verbose -[07248] [Originator@6876 sub=transport] Failed to scan SCSI bus 0, error 259
  Log: 2017-06-02T16:19:41.702+02:00 error -[07248] [Originator@6876 sub=transport] HotAdd ManagerLoop caught an exception
  Log: 2017-05-26T12:32:12.355+02:00 error -[07148] [Originator@6876 sub=transport] Cannot use mode hotadd to access [DS-R10-1] VM/VM.vmdk: Cannot mount using this method. (Mounting VM vm-64 using transport hotadd failed : HotAdd ManagerLoop caught an exception.)
  Log: VixDiskLib: Unable to locate appropriate transport mode to open disk. Error 13 (You do not have access rights to this file) (Mounting VM vm-64 using transport hotadd failed : HotAdd ManagerLoop caught an exception.) at 4843.

  Note: This log excerpt is an example. Date, time, and environmental variables may vary depending on your environment.

Environment

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

Cause

VDDK assumes that there is a AHCI controller.

 

This issue occurs when rescanning for new disks on the AHCI controller fails.

Resolution

This is a known issue affecting VMware Virtual Disk Development Kit 6.0, 6.5, and 6.7.

 

To work around this issue, remove SATA controller from proxy virtual machine while using HotAdd mode.