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Troubleshooting CA ARCserve Central Host-Based VM Backup › Backups Complete Using the NBD Transport Mode When the hotadd Transport Mode was Specified

Backups Complete Using the NBD Transport Mode When the hotadd Transport Mode was Specified

Valid on Windows platforms.

Symptom:

Virtual machine backups complete using the NBD transport mode when the hotadd transport mode was specified for the backup.

Solution:

CA ARCserve Central Host-Based VM Backup lets you back up virtual machines that reside on ESX Server systems. When you back up virtual machines using the hotadd transport mode, you can connect maximum 15 virtual disks to each SCSI controller on the CA ARCserve D2D virtual machine proxy server. When you submit a backup that includes more than 15 virtual disks and there is only one SCSI controller on the CA ARCserve D2D virtual machine proxy server, the single SCSI controller cannot accommodate all of the virtual machines. As a result, CA ARCserve Central Host-Based VM Backup backs up the data of the NBD transport mode.

To prevent this behavior from occurring, verify that there are a sufficient quantity of SCSI controllers on the CA ARCserve D2D virtual machine proxy server that can accommodate all the virtual machines in the backup job.