SNIA is particularly focused on Version 1.1 of SMI-S, which defines interfaces between network-attached storage (NAS) and iSCSI-based devices. That version is currently being reviewed by ANSI. SMI-S v1.1 deals with device descriptions and the services associated with them, such as copying data from one array to another.

SMI-S version 1.02 is being reviewed by SNIA members and will offer support for host based controllers ' bringing SMI-S down to the host storage enclosures. file system quotas, volume protection and the management of data snapshots and replication. Version 1.03 of SMI-S has already been ratified by the American National Standards Institute (ANSI) and is also being pushed to the International Standards Organization for ratification.