Carlsbad-based Dot Hill Systems announced today that it has entered into an OEM agreement with ONStor, a provider of clustered NAS systems. ONStor will use DOt HIll's RAID storage for its systems. ONStor will use Dot Hills 4GB Fibre Channel, Serial Attached SCSI (SAS) and Serial ATA (SATA) devices as part of its Pantera clustered storage solution. ONStor is a developer of clustered, network attached storage devices used for file storage. Dot Hill is a manufacturer of storage systems for the enterprise.