NBD based AVVI backups will fail if NFC connections are Reset or Timedout on the VMware Server

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  • Article ID:000082850


The Backup job for VMware will fail with "The object was not found, or could not be accessed (VMware backup)."

Error Message

Job Log error:   0xe0001705 - The object was not found, or could not be accessed (VMware backup).


Debug of the RAWS shows the following:

[6004] 06/17/11 23:50:33 [fsys\shared]        - VDDK-Log: NfcNetTcpRead: timed out waiting for data
[6004] 06/17/11 23:50:33 [fsys\shared]        - VDDK-Warn: [NFC ERROR] NfcFssrvrRecv: failed with code = 9
[6004] 06/17/11 23:50:33 [fsys\shared]        - VDDK-Warn: [NFC ERROR] NfcFssrvr_DiskIo: failed to receive io reply
[6004] 06/17/11 23:50:33 [fsys\shared]        - VDDK-Log: DISKLIB-LIB   : RWv failed ioId: #16414835 (290) (34) .
[6004] 06/17/11 23:50:33 [fsys\shared]        - VDDK-Warn: VixDiskLibReaderWriter::ReadData: Unable to read from disk -2145443840 bytes at 17592186044416.



When running backups via NBD method for the AVVI agent , the VMware Server has a limit to the number of NFC connections allowed.  If this limited is exceeded, it will cause NFC connection timeouts.


1. Run the Backup job using the SAN method only.

2. Contact VMware to determine what is using all of the NFC connections.


See the following VMware document for more information:

Terms of use for this information are found in Legal Notices.



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