Backup is configured to backup in hotadd mode but backs up 2 of the 3 VM’s in hotadd mo0de but backs up one in nbd mode as seen in binary log extract below.
Looking at the corresponding vixDiskLib-xxxx.log file at the time of the backup mode allocation we see “Cannot use advanced transport modes” because it cannot create a working folder for this VM in temporary directory “C:\Windows\TEMP\vmware-SYSTEM\”
From NetVault binary log:
Job Message 2013/12/12 09:52:15 175 Data Plugin W2K8T35 TaskID 1u VM disk '[FZ_VMFS03] W2K8T52/W2K8T52-000002.vmdk' opened in 'hotadd' mode
Job Message 2013/12/12 09:52:29 175 Data Plugin W2K8T35 TaskID 3u VM disk '[CR_VMFS02] W2K8T50/W2K8T50-000003.vmdk' opened in 'nbd' mode
Job Message 2013/12/12 09:52:33 175 Data Plugin W2K8T35 TaskID 2u VM disk '[FZ_VMFS02] W2K8T51/W2K8T51-000002.vmdk' opened in 'hotadd' mode
From vixDiskLib-xxxx.log file
Cannot use advanced transport modes for 10.30.113.20/moref=vm-1827/snapshot-6244: Cannot create directory C:\Windows\TEMP\vmware-SYSTEM\422ad175-9abc-a124-bfea-5fa66d89d6b0-vm-1827.
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