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Restore failed

Post by ta_yoshizumi » Jun 25, 2019 11:28 pm

Hello all.

I am contacting to Veeam support about restore failed.
Case # is 03519522

The registry [DataMoverLocalFastPath] has been added and the value has been set to 0, as a shared memory error has occurred from the support team.

As a result, the error was resolved and the restore was successful.
However, the following error occurred when performing a 30TB of VM's disk restore.
2019/06/25 22:27:18 Error Failed to restore file: IZK-TFSV_4-flat.vmdk Error: NFC server [] is busy.
Processed file: [[datastore1] Restore-IZK-TFSV / IZK-TFSV_4-flat.vmdk]. Size of the processed data: [2051363807232]. Size of the file: [32985348833280].
Unable to receive file.
Exception from server: write: An existing connection has been forcibly disconnected by the remote host.

Please let me know the cause of this error and the workaround.

Thank you.

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Re: Restore failed

Post by HannesK » Jun 26, 2019 5:41 am

please understand that the forum does not replace support.

There are several reasons why NFC errors can occur (often network / firewalls etc.).

Please continue working with support. They are the only ones who can find the cause because they have the logfiles.

Best regards,

Andreas Neufert
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Full Name: Andreas Neufert
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Re: Restore failed

Post by Andreas Neufert » Jun 26, 2019 7:21 am

Potentially it helps if you increase buffer size

You can optimze the ESXI Network (NBD) performance by increasing the NFC buffer size from 16384 to 32768 and optimize the Cache Flush interval from 30s to 20s by VMware KB 2052302 http://kb.vmware.com/kb/2052302

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