High Availability

ES-2800 storage appliances for iSCSI, NAS and optionally for Fibre Channel volumes may also be configured as active/active HA-clusters with especially high failure-protection. In this case two nodes have access to a shared storage system, which in turn is protected against disk failure with the RAID levels of the ZFS. Both cluster knodes provide iSCSI and NAS volumes via joint virtual IP addresses. Thus, should one side fail or be shut down for maintenance reasons, data access by the individual clients may continue without interruption.
Due to the ZFS file system Nexenta-based storage systems provide high security against inconsistent file systems.
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ES-2900 cluster solutions based on DataCore SANsymphony software offer high data availability in Fibre Channel networks and can easily be integrated into existing SANs.
Data is mirrored between two systems, so that a failure of a RAID set would not result in loss of data access.
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ES-8700 iSCSI/NFS Cluster build a highly flexible storage solution, that replicates synchronously iSCSI and optional NFS volumes and, with automatic failover, keeps them available even in the case of a system failure. Additionally these systems can be used as file servers for Windows clients (CIFS), including replication (also over WAN) and snapshot functionality.
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