What security mechanism can an administrator use on an OSSV client to use permissions
allowing backup to a SnapVault secondary system?

A.
MD5 authentication between SnapVault primary and secondary, with changeable password

B.
Contents inside file called access and located in OSSV /snapvault/etc

C.
QSM access list modifiable via svconfigurator

D.
Via /etc/hosts.equiv file

Explanation:
https://communities.netapp.com/servlet/JiveServlet/previewBody/4791-102-2-13466/tr-3466.pdf
In order to restrict the NetApp secondary systems that are allowed to initiate backups from an
OSSV host, theQSM Access List field can be populated with the hostname of the secondary using
the OSSVConfigurator utility. When using this option, make sure the “Check QSM Access List”
box is enabled.

The snapvault.access option on the NetApp secondary can be used to restrict the OSSV hosts
that areallowed to initiate restores from that secondary system. This option can be populated with
a list of hostnamesfor each OSSV host. For example:
options snapvault.access host=ossv1,ossv2,ossv3
Screenshot of the svconfigurator GUI; note the QSM access list checkbox and field.