The Symantec Backup Exec
Agent for Microsoft Virtual Servers (Agent for Microsoft Virtual
Servers) is installed as a separate, add-on component of Backup
Exec for Windows Servers.
With the Agent for Microsoft Virtual Servers, you
can do the following:
Back up a virtual machine no matter which operating
system is used on the virtual machine.
Back up and restore the configuration settings for
the virtual server host, which is the physical computer that runs
the virtual server software.
Back up and restore all virtual machines, which are
virtual computers that reside on the virtual server host.
Back up and restore selected virtual machines.
Redirect restores of a virtual machine to a
different virtual server host.
Restore individual files and folders by using
Granular Recovery Technology.
The Agent for Microsoft
Virtual Servers uses Microsoft's Volume Shadow Copy Service (VSS)
to protect the virtual server host configuration and virtual
machines. VSS provides a copy of a volume when the backup job is
initiated. The computer can then be backed up while applications
and services run.
Backup Exec takes a
snapshot backup of the virtual server host. The host in turn takes
snapshots of all virtual machines on the host. This process enables
Backup Exec to back up virtual servers without any downtime.
With an offline backup,
the virtual machine is placed briefly in a saved state. The virtual
machine does not remain in the saved state for the entire backup
The amount of downtime the backup job requires
depends on the following:
The amount of memory that is allocated to the
The current load on the host's operating
You cannot use the Agent
for Microsoft Virtual Servers to select individual files on a
virtual machine for backup. However, you can use other Backup Exec
agents, such as the SQL Agent or Exchange Agent, for file-level and
application-level backups on virtual machines.
If you set up recurring
jobs with a previous version of Backup Exec, you must either
recreate the job or change the selection list to use Microsoft