Start-up Copan Systems is joining forces with several large companies to help customers better retain data that doesn't change much but that is important to keep for regulatory compliance.

Copan sells systems designed to store old transaction records, email and other such data and is partnering with FalconStor, Seagate Technology, Sun Microsystems, Symantec and others to sync up its products with theirs.

Copan sites estimates that as much as 70 percent of stored data doesn't need to be handled on expensive primary disk-based storage systems. Copan's Revolution features disks that spin only when files need to be retrieved or stored, and the company says this can reduce power consumption and boost longevity of the systems.

Copan's partners plan to offer complete packages of software and hardware that will address customers's primary and secondary storage needs.