Iris Arc is a private and secure Relativity environment made available to clients of Iris Data Services for a fixed monthly fee. There is no application licensing or hardware to purchase, and clients get all the benefits of a full-featured Relativity environment with its own dedicated storage and infrastructure. The storage space is flexible and a client can increase capacity at any time and subsequently reduce it. There is a full description of Iris Arc here.
Iris has now added a set of reporting and administrative enhancements to Iris Arc which allow law firms and corporations to manage their storage allocation on individual matter basis. The reporting tools include the ability to manage budgets resources, staff and budgets.