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D4 SAN Storage Array

D4 SAN Storage ArrayThe NEC D4 modular storage array offers both Fibre Channel and iSCSI connectivity in the same array. Offering many built-in features, as well as, support for NEC’s enterprise-class storage software. The D4 array is scalable from just 300 GB to 288 TB capacity via up to eleven 2U 12-drive expansion enclosures.

Aggregate throughput of over 1,200 MB/s to hosts is provided via up to eight 8 Gbps Fibre Channel ports, or up to four 10 Gbps iSCSI ports. The ports can be connected into a SAN, or direct-connected as a simple and low-cost DAS solution. The disk enclosures are connected to the controller through a SAS wide-link connection for a full 48 Gbps bandwidth to each disk enclosure.

A fully redundant system  protects against any single-point-of-failure, with a BBU (battery backup unit) protecting the cache. Failed componentry is reported via alerts through either email or SNMP traps, as well as in the management software.

Download D4 SAN Storage Array product brochure for detailed specifications

Download D-Series Software product brochure for detailed specifications

Feature D4
Controllers 2 active-active
Host Interface 8 Gbps Fibre Channel
10 Gbps iSCSI*
Host Ports Fibre Channel: 4 or 8
iSCSI: 0 or 4
Capacity (max) 288 TB
Modules 1 to 12
Capacity per module 12 HDDs
HDD support SAS, SATA, and SAS + SATA intermix
Cache 4 GB (2 GB per controller)
Cache Battery 7 hours standard; 72 hours with optional 1U battery backup unit
Supported OS
  •  Microsoft Windows Server® 2003 (x86, x64)
  • Microsoft Windows Server 2008 (x86, x64)
  • Red Hat® Enterprise Linux
  • Solaris™
  • VMware®
  • Citrix® XenServer™


The software-driven capabilities below are available on the D4:

Software Objective Software Function NEC Storage Software
Simple Operation Storage & access control Storage Manager
Over-provisioning of capacity Thin Provisioning
Data Protection Replication within same array Dynamic DataReplication
Replication between arrays Remote DataReplication
On-demand snapshots Dynamic SnapVolume
Transaction-consistent protection for MS SQL Server Replication Control SQL Option
Performance Management Performance monitoring & alerts Performance Monitor
Analysis and trending of performance data over time Performance Navigator
Automates performance tuning Performance Optimizer
Energy Conservation Turn off HDDs when not needed (more than MAID) Power Conserver
Compliance Prevent unauthorized modification of data (more than WORM) Volume Protector
High Availability Multi-pathing for failover and load balancing Path Manager
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