"If a database spans volumes, a consistency group (CG) Snapshot copy must be created. Several options exist for creating CG Snapshot copies, including NetApp SnapCenter® software, the NetApp SnapCreator® framework, NetApp SnapManager® for Oracle (SMO), NetApp SnapDrive® for UNIX, and user maintained scripts."
Also, take a look here (search for Consistency Group).
"Where a database must span volumes, a consistency group snapshot copy (CG snapshot) is required. The most common software used to create consistent snapshots is NetApp Snap Creator®, which is available at no charge for any controller with an active support contract. Snap Creator also includes scheduling, pre/post operation scripting abilities, and replication management. Products like the SnapCenter Plug-in for Oracle Database also natively perform CG snapshots when required by the underlying dataset. Lastly, CG snapshots can be easily scripted by using the NetApp Manageability SDK with various scripting languages."