NOM requires Symantec ICS to be installed prior to the installation of NOM itself, however:
5. Solaris 10 Zone Support: The above support is for base Solaris 10 OS support. NetBackup Server and Enterprise Client Components (master server, media server, SAN media server and SAN client) are supported only in a global zone. Only the NetBackup Standard Client is supported in non-global zones.
Veritas Infrastructure Core Services (ICS) are only supported in the global zone. This includes packages such as the Veritas Authentication service (VxAT) and the Veritas Authorization Service (VxAZ). Attempts to install these packages in a local zone will fail during the installation
From:
Document ID: 275107
DOCUMENTATION: Additional Information about support for Veritas NetBackup (tm) Server / NetBackup Enterprise Server on Sun Solaris 10 platform.