Storage cluster with ZFS file system offer extremely high data availability. The file system contains check sums of all data and addresses each disk directly, without RAID controller, thus being able to recognize and correct even single defects of any disk immediately. Furthermore practically infinite numbers of snapshots can be generated without performance loss. With the newest version of Open-E’s JovianDSS software also active/active clusters can be configured, speeding up performance by sharing the load on the cluster nodes. The Cluster supports iSCSI as well as NFS and CIFS access. For maximum redundancy the disks of two JBODs can be mirrored in pairs, so that, if a JBOD should fail, all volumes would still be available. This can also be configured as Metro-Cluster over two sites. ES-8700 JovianDSS Cluster can also be offered as Cluster-in-a-Box: two mainboards in one enclosure with shared backplane. Additionally the data can be asynchronously replicated to a second site, over the network. On the other side only a single ES-8700 Jovian DSS system is needed. But of course this could also be a second cluster. Some models have been certified as a complete system by Open-E. The other models of the series only differ in the configuration. These clusters can also be installed as hyper-converged solution or together with virtualization clusters.