I am running vBackup on Windows 7 x64 and I am trying to backup one of my VMs from my ESXi 5.5 host. I followed the instructions but when I start the backup job, it stops right before it begins copying the VM disk file for no apparent reason. See the text from the console window below. I checked the log file but there's nothing there that helps. The vBackup client window says "failed on error" under the Result column. Thanks for any assistance.


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Thinware(R) vBackup(R)
Version: 4.0.0.2708 (Version 4.0)
Copyright (c) 2009-2014 Thinware, Inc. All rights reserved.
Visit us at: www.vbackup.com
________________________________________________________________________________

Process Started: 2/18/2015 10:16:48 AM

Application Settings:
- SMTP Server =
- SMTP Username =
- SMTP Password =
- SMTP From Address =
- Notification Recipients =
- VMware Virtual Disk Development Kit Install Path = C:\Program Files (x86)\
VMware\VMware Virtual D
isk Development Kit

Execution Arguments:
- Virtual Machine = Win81x64_ADM_RBHS
- Server = 10.24.9.41:22
- Server Username = root
- Server Password = **********
- Job = Win81x64_backup
- Job Type = Backup-Image-SSH
- Backup Root = E:\VMBackups
- Disk Exclusion = None
- Backups To Keep = 1
- Quiesce Guest File System = False
- Create Snapshot Task Timeout = 15
- Remove Snapshot Task Timeout = 15
- Encrypt Temporary Password File = False
- Compression Level = None
- Maximum Log Size = 1024
- Backup Type = Image-Full
- Debug = after

Validating settings...

SMTP server not provided, e-mail notification is disabled.

Attempting to ping server... Server responded to ping.

Establishing connection to server...

One or more certificate problems encountered while establishing connection
to https://10.24.9.41/sdk:

* A certification chain processed correctly, but terminated in a root cer
tificate which isn't trusted by the trust provider.
* The certificate's CN name does not match the passed value.

Server Platform: VMware ESXi 5.5.0 2068190

Hypervisor property for 10.24.9.41 updated.

Verifying virtual machine exists on server... Virtual machine located successful
ly.

Virtual Machine Guest OS: Microsoft Windows 8 (64-bit)

GuestOS property for Win81x64_ADM_RBHS updated.

Validating license... License validated.

License:
- Type: Perpetual
- Status: Active
- Edition in Use: Standard

Checking for licensing issues... No licensing issues found.

Checking for feature usage issues... No feature usage issues found.

Backup Folder: E:\VMBackups\Win81x64_ADM_RBHS

Backup: 150218_101702

Log File: E:\VMBackups\Win81x64_ADM_RBHS\vBackup.log

Executing backup job...

Checking for existing temporary snapshot(s)... No temporary snapshots found.

Creating folder for backup data... Done.

Retrieving virtual machine ID... Virtual Machine ID: 5

Creating temporary snapshot... Done.

Obtaining reference to temporary snapshot... Done.

Temporary Snapshot: vBackup-TMP-150218_101702

Copying virtual machine configuration file... Done.

VMware Virtual Disk Development Kit: VMware Virtual Disk Manager - build 774844

Copying virtual machine virtual disk file(s)...

Hard disk 1: [datastore1] Win81x64_ADM/Win81x64_ADM-000002.vmdk
Creating disk 'E:\VMBackups\Win81x64_ADM_RBHS\150218_101702\Win81x64_ADM-00000
2.vmdk'

[NFC ERROR] NfcNetTcpRead: bRead: -1
[NFC ERROR] NfcNet_Recv: requested 261720, recevied only 131072 bytes
[NFC ERROR] NfcFile_RecvMessage: data recv failed. retval = 3, expected 261720
[NFC ERROR] NFC_NETWORK_ERROR
Failed to convert disk: Operation completes asynchronously (0x300004650).

This error is documented under troubleshooting backup job execution errors in the online vBackup Documentation.

http://www.thinware.net/Products/Thin...

If you are using Thinware vBackup Advanced or Professional the simplest fix is to just enable compression in the job's settings. If you are using Thinware vBackup Standard you may need to convert the VM's disks to thin-provisioned (thick-provisioned disks are not supported with Thinware vBackup Standard).

Hope this helps!