Seagate manufactures hard drives that specifically address the demand for hyperscale cloud scalability. As the flagship of the Seagate X class, the Exos X18 enterprise hard drives are the highest-capacity hard drives in the fleet. SED model - Best-fit applications: - Scalable hyperscale applications/cloud data centres - Massive scale-out data centres - Big data applications - High-capacity density RAID storage - Mainstream enterprise external storage arrays - Distributed file systems, including Hadoop and Ceph - Enterprise backup and restore-D2D, virtual tape - Centralised surveillance