Consolidate Snapshot disks fails but completes without any errors in the vSphere Client

Products

• VMware vSphere ESXi
• VMware vCenter Server

Issue/Introduction

• After snapshot consolidation, the vSphere Client reports complete without any errors.
• The snapshot disk remains and continues to require consolidation.
• The hostd log reports snapshot consolidation failure.
  hostd.log
  

  [timestamp] verbose hostd[2363603] [Originator@6876 sub=Vigor.Vmsvc.vm:###.vmx opID=######-##-##-####] Consolidate Disks translated error to vim.fault.NoDiskSpace
  [timestamp] verbose hostd[2363603] [Originator@6876 sub=Vigor.Vmsvc.vm:###.vmx opID=######-##-##-####] Consolidate Disks message: Consolidation failed for disk node 'scsi#:#': There is not enough space on the file system for the selected operation.
  --> An error occurred while consolidating disks: There is not enough space on the file system for the selected operation.
  -->

• The vCenter Server log reports snapshot consolidation success.
  journal
  

  [timestamp] [hostname] vpxd[4435]: Event [2345148] [1-1] [timestamp] [vim.event.TaskEvent] [info] [######] [######] [2345148] [Task: Consolidate virtual machine disk files]
  [timestamp] [hostname] vpxd[4435]: Event [2349238] [1-1] [timestamp] [vim.event.EventEx] [info] [######] [######] [2345148] [Virtual machine [vm] disks consolidated successfully on [host] in cluster [cluster] in [datacenter].]

Resolution

This is a known issue, and since the consolidation actually fails, you will need to resolve the cause and then retry the consolidation.
This issue has been fixed in ESXi 7.0 Update 3o (build 22348816) and 8.0 Update 1c (build 22088125), and if the consolidation fails, an error will also be displayed in the vSphere Client.