There's a very extensive post on configuring multi-tenancy at Multi-Tenant Views  (Note: the top is about ViPR Controller tenants, but the original post is about general SRM functionality.)
Anyone out there using SRM to report on a shared environment? Using shared fabrics, arrays and vCentre servers can an SRM user for a department or customer be setup to be able to view only particular groups of hosts and their associated storage and connectivity?
limit an SRM user scope to only a Device Grouping