Use the vmbackvcbtransport option with
the backup VM command to specify the transport
mode to be used with VMware Consolidated Backup (VCB).
The vmbackvcbtransport option determines
how VCB accesses virtual disk data.
Important: - Full VM backup uses the VMware VCB support. Use the vmbackvcbtransport option
to control the transport mode for full VM backups.
- File-level backup uses the vStorage for Data Protection APIs,
and determines the best available transport. The vmbackvcbtransport option
is not necessary for file-level backups.
Supported Clients
This option is valid
only on supported Windows clients
that are installed on a vStorage backup server. The server can also
define this option.
Options File
Place this option in the client
options file, or on the command line.
Syntax
.-RETRY--.
>>-VMBACKVCBTransport--+-SAN----+------------------------------><
+-LAN----+
'-HOTadd-'
Parameters
- RETRY
- Attempt access using the SAN to the virtual machine data from
the backup proxy. If the SAN access is not available, try the operation
again using the LAN transport. RETRY is the default.
- SAN
- Use the SAN to access virtual machine data from backup proxy.
- LAN
- Use the LAN to access virtual machine data from the backup proxy.
LAN access is the same as the Network Block Device (NBD) protocol,
which can be set on the VCB vcbmounter command.
- HOTadd
- Use the VMWare hotadd transport to access virtual machine data
from the backup proxy. See the VMware document Virtual Machine
Backup Guide that is specific for your version of ESX software
for a description of the hotadd transport and the setup that is required.
The Virtual Machine Backup Guide is available at http://www.vmware.com.
Note: The
additional setup that is required to use hotadd transport that is
documented in VMware documentation is not required for file-level
backups.
Examples
- Options file:
VMBACKVCBTransport lan
- Command line:
dsmc backup vm vmlocal -vmbackuptype=fullvm -vmbackvcbtransport=lan