The NEC D4 modular storage array provides both Fibre Channel and iSCSI connectivity in the same array. It has many built-in features and supports NEC’s enterprise-class storage software. A single D4 array can scale from just 300 GB to 288 TB capacity by adding up to eleven 2U 12-drive expansion enclosures.
Aggregate throughput of over 1,200 MB/s to hosts is provided through up to eight 8 Gbps Fibre Channel ports or up to four 10 Gbps iSCSI ports. These can be connected into a SAN or direct-connected as a simple and low-cost DAS configuration. The disk enclosures are connected to the controller via SAS wide-link connection for 48 Gbps bandwidth to each disk enclosure.
The system is fully redundant to protect against single-point-of-failure, with a battery backup unit for protecting the cache. Failed components are reported via alerts by either email or SNMP traps and in the management software.