Veritas NetBackup™ Appliance iSCSI Guide

Last Published:
Product(s): Appliances (3.1)

Transport modes options (VMware)

The transport modes determine how the snapshot data travels from the VMware datastore to the VMware backup host. The appropriate mode depends in part on the type of network that connects the VMware datastore to the VMware backup host.

By default, all modes are selected. NetBackup tries each transport mode in order, from top to bottom. It uses the first mode that succeeds for all disks in the virtual machine.

Table: Transport Modes

Mode

Description

san

For unencrypted transfer over Fibre Channel (SAN) or iSCSI.

Note:

On NetBackup appliances, the VMware backups happening over iSCSI use the san transport mode.

Note:

This mode is not supported for the virtual machines that use VMware Virtual Volumes (VVols).

hotadd

Lets you run the VMware backup host in a virtual machine.

Note:

For the virtual machines that use VVols, the virtual machine and the backup host (hotadd) virtual machine must reside on same VVol datastore.

For instructions on this transport mode and on installing the backup host in a VMware virtual machine, refer to your VMware documentation.

nbd

For unencrypted transfer over a local network that uses the Network Block Device (NBD) driver protocol. This mode of transfer is usually slower than Fibre Channel.

nbdssl

For encrypted transfer (SSL) over a local network that uses the Network Block Device (NBD) driver protocol. This mode of transfer is usually slower than Fibre Channel.