hongchuong
Enthusiast
Enthusiast

FAILED: An error occurred during the conversion: 'The operation experienced a network error'

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Hi everyone.

I was used VMware Converter Standalone 6.0 to converter server 2003 on Hyper-V to host ESX of vCenter.

Hyper-V have IP : 10.132.2.200

vCenter have IP: 10.132.2.177

Host ESXi have IP : 10.132.2.192

We haven't policy firewall for 3 IP this. All ports are open in Firewall.

But, when I convertering 1% that have error with status : FAILED: An error occurred during the conversion: 'The operation experienced a network error'

So, Can you help me fix case this ?

Best regards.

1 Solution

Accepted Solutions
patanassov
VMware Employee
VMware Employee

Hello Hongchuong


it really looks like a blocked network communication. You write no firewall is blocking it but let's get into more details. The connection needs to be established from the Hyper-V host (10.132.2.200) to the ESXi host (10.132.2.192) on port 902, as in log lines:

2015-07-12T14:03:46.634+07:00 info vmware-converter-agent[03900] [Originator@6876 sub=task-1] establishing nfc connection to host 10.132.2.192 port 902

2015-07-12T14:03:47.193+07:00 info vmware-converter-agent[03900] [Originator@6876 sub=task-1] Sysimgbase_Nfc_PutFile source disk: E:\MayAo_Hyp\Hyp2K3-LT\Virtual Hard Disks\Hyp2K3-Goc_5110F977-7064-4B81-9452-BDAE36EE9C9D.avhd, target disk [Datastore-SAN2] Hyp2K3-HDND/Hyp2K3-HDND.vmdk

2015-07-12T14:06:44.992+07:00 warning vmware-converter-agent[03900] [Originator@6876 sub=Default] [,0] [NFC ERROR] NfcNetTcpWrite: bWritten: -1

2015-07-12T14:06:44.992+07:00 warning vmware-converter-agent[03900] [Originator@6876 sub=Default] [,0] [NFC ERROR] NfcFile_SendMessage: data send failed:

2015-07-12T14:06:44.992+07:00 warning vmware-converter-agent[03900] [Originator@6876 sub=Default] [,0] [NFC ERROR] The operation experienced a network error -- Failed to send data message

2015-07-12T14:06:45.056+07:00 error vmware-converter-agent[03900] [Originator@6876 sub=task-1] Sysimgbase_Nfc_PutFile failed in H2MDiskCloneMgr with nfcError 'The operation experienced a network error' (error code:3)

2015-07-12T14:06:45.069+07:00 warning vmware-converter-agent[03900] [Originator@6876 sub=Default] [,0] SSL: Unknown SSL Error

2015-07-12T14:06:45.069+07:00 warning vmware-converter-agent[03900] [Originator@6876 sub=Default] [,0] [NFC ERROR] NfcNetTcpWrite: bWritten: -1

2015-07-12T14:06:45.069+07:00 warning vmware-converter-agent[03900] [Originator@6876 sub=Default] [,0] [NFC ERROR] NfcSendMessage: send failed: NFC_NETWORK_ERROR

An easy way to try the connectivity is telnet from the Hyper-V host to the ESX host on port 902

I see you have also tried again to destination 10.132.2.191 with the same error.  It is possible the Hyper-V firewall is blocking.


HTH

Plamen

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10 Replies
ivivanov
VMware Employee
VMware Employee

Can you provide a log bundle of the failed task?

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hongchuong
Enthusiast
Enthusiast

Dear ivivanovivivanov !

I send provide a log bundle of the failed task.

Thanks.

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patanassov
VMware Employee
VMware Employee

Hello

can upload the task log bundle? (right click on the failed task and export) The GUI and server logs are not very informative, the worker and agent logs are.

Regards,

Plamen

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hongchuong
Enthusiast
Enthusiast

Dear plamen‌    

I send you the file was export of job be error.

Thanks.

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patanassov
VMware Employee
VMware Employee

Hello Hongchuong


it really looks like a blocked network communication. You write no firewall is blocking it but let's get into more details. The connection needs to be established from the Hyper-V host (10.132.2.200) to the ESXi host (10.132.2.192) on port 902, as in log lines:

2015-07-12T14:03:46.634+07:00 info vmware-converter-agent[03900] [Originator@6876 sub=task-1] establishing nfc connection to host 10.132.2.192 port 902

2015-07-12T14:03:47.193+07:00 info vmware-converter-agent[03900] [Originator@6876 sub=task-1] Sysimgbase_Nfc_PutFile source disk: E:\MayAo_Hyp\Hyp2K3-LT\Virtual Hard Disks\Hyp2K3-Goc_5110F977-7064-4B81-9452-BDAE36EE9C9D.avhd, target disk [Datastore-SAN2] Hyp2K3-HDND/Hyp2K3-HDND.vmdk

2015-07-12T14:06:44.992+07:00 warning vmware-converter-agent[03900] [Originator@6876 sub=Default] [,0] [NFC ERROR] NfcNetTcpWrite: bWritten: -1

2015-07-12T14:06:44.992+07:00 warning vmware-converter-agent[03900] [Originator@6876 sub=Default] [,0] [NFC ERROR] NfcFile_SendMessage: data send failed:

2015-07-12T14:06:44.992+07:00 warning vmware-converter-agent[03900] [Originator@6876 sub=Default] [,0] [NFC ERROR] The operation experienced a network error -- Failed to send data message

2015-07-12T14:06:45.056+07:00 error vmware-converter-agent[03900] [Originator@6876 sub=task-1] Sysimgbase_Nfc_PutFile failed in H2MDiskCloneMgr with nfcError 'The operation experienced a network error' (error code:3)

2015-07-12T14:06:45.069+07:00 warning vmware-converter-agent[03900] [Originator@6876 sub=Default] [,0] SSL: Unknown SSL Error

2015-07-12T14:06:45.069+07:00 warning vmware-converter-agent[03900] [Originator@6876 sub=Default] [,0] [NFC ERROR] NfcNetTcpWrite: bWritten: -1

2015-07-12T14:06:45.069+07:00 warning vmware-converter-agent[03900] [Originator@6876 sub=Default] [,0] [NFC ERROR] NfcSendMessage: send failed: NFC_NETWORK_ERROR

An easy way to try the connectivity is telnet from the Hyper-V host to the ESX host on port 902

I see you have also tried again to destination 10.132.2.191 with the same error.  It is possible the Hyper-V firewall is blocking.


HTH

Plamen

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hongchuong
Enthusiast
Enthusiast

Dear Plamen !

I was checked to like you guide.

From Hyper-V server I can telnet to IP's ESXi port 902 but can't telnet to IP's vCenter port 902.

So, I can open port 902 on v-Center and Can you guide me ?

Thanks.

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patanassov
VMware Employee
VMware Employee

Hello hongchuong

You don't need to open port 902 on the vCenter server.

However there has been a bug related to V2V from Hyper-V with sparse disks, which has the same symptoms.

As a workaround you may try to force file-level cloning (I haven't tested that but hope it will work). You may, e.g, shrink a destination volume a little or change the cluster size to force file-level.

HTH

Plamen

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hongchuong
Enthusiast
Enthusiast

Dear Plamen !

Yesterday, I was tried to converter a job and it was completed.

Although I wasn't changed any on firewall device and firewall soft on windows.

We can close the ticket for this case.

Thank and best regards.

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tcarman
Contributor
Contributor

I experienced a similar issue with VMware Converter 6.0 last week whilst trying to convert a Hyper-V 2008 R2 VM to VMware ESXi 5.5. The error message was totally misleading as it was not a network problem at all. I managed to resolve my issue by modifying the configuration of the destination virtual disks.

You can find more information here - http://timcarman.net/2015/07/20/vmware-converter-the-operation-experienced-a-network-error/

niloshima
Contributor
Contributor

Thanks for your post. This saved myday

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