System-wide roles are typically assigned to an IT system administrator. In some organizations, the IaaS administrator role might be the responsibility of a cloud administrator.
The system administrator is typically the person who installs vRealize Automation and is responsible for ensuring its availability for other users. The system administrator creates tenants and manages system-wide configuration such as system defaults for branding and notification providers. This role is also responsible for monitoring system logs.
In a single-tenant deployment, the same person might also act as the tenant administrator.
IaaS administrators manage cloud, virtual, networking, and storage infrastructure at the system level, creating and managing endpoints and credentials, and monitoring IaaS logs. IaaS administrators organize infrastructure into tenant-level fabric groups, appointing the fabric administrators who are responsible for allocating resources within each tenant through reservations and reservation, storage, and networking policies.