Centralized management and operation by visualized Web client
The D Series offers GUI of Web client for every operation from installation to administration.

Operational status of the system components such as Storages, connected servers, logical disks and physical disks can be visualized.

The type of HDD is selectable according to the purpose of the system.

Selectable from high-speed/high-performance SAS disk drive and large-capacity/low-cost SATA disk drive. These 2 types of HDD can be mixed within the same disk enclosure.

SAS disk drive with high performance for main business which is most frequently accessed. SATA disk drive with low cost for backup use. SAS and SATA disk drives can be mixed within the same disk enclosure, so Disk to Disk backup in a single enclosure is available.

RAID Engine
Performance is enhanced with new RAID engine which has high internal transfer speed. The load of the processor can be offloaded to the RAID engine.

SAS technology is leveraged
SAS (Serial Attached SCSI) has been adopted for the disk array. "Wide Link" technology of SAS can use 4 sets of 3Gbps SAS interface in parallel, so that it realizes 12Gbps transfer speed.

High availability, high reliability

RAID-TM (Triple Mirror) with more advanced high availability
RAID-Triple Mirror by high-speed RAID engine is adopted. This technology has high speed of RAID-1 and high reliability of RAID-6 at the same time. The business can continue even when double failure occurs to the HDDs of the same RAID. This technology is useful especially for Database and OLTP which require high performance and availability.

Saving energy

MAID Technology to reduce the power consumption of disk drives
The D Series incorporates MAID technology. This technology allows customers to save power by allowing disks to be powered off.

Standard Four FC Host Ports, Four Gbps Each
Up to 6 servers with dual paths can be connected without an FC switch, enabling a simple and low-cost configuration. For larger configurations, one to two fabric switches are installed between the storage device and host systems. Up to 12 host connections are available.

Component Redundancy
Redundancy with field-replaceable, hot-swapping is provided for all major components such as controllers, cache memory, power supplies, battery backup units, and fans - insuring business up-time even in the rare event of a component failure.

RAID-6 Technology
RAID-6 technology ensures continued operation even if errors occur in two hard drives at the same time. RAID-6 greatly enhances the availability of the disk array, and can be used together with RAID-1 and RAID-5 storage pools. RAID-6 records two parity values, P and Q, which are generated by two independent equations made from the data. NEC's D3-10 Storage Array contains an NEC ASIC LSI RAID processor, which carries out the complex RAID operations. RAID-6 provides high performance and keeps the device highly reliable. Replace below storage system with new graphics. or leave out

DynamicPool
Traditionally, logical disks could only be managed in units of the physical sets of disks that made up the RAID, users had to install a fixed number of disks even if they were not necessary. The new dynamic pool function permits logical disk capacities to be changed dynamically. Physical disks can be added one at a time. The logical disks required can be managed efficiently, and the system is free from physical restrictions. . Replace below storage system with new graphics. or leave out

Phoenix Technology for Advanced Preventative Maintenance
Using Phoenix Technology, a disk drive causing a delay in response can be separated from the RAID pool, and a background diagnosis automatically performed. If no defects are found, the drive can be returned to the original RAID configuration without the need for switching to a hot spare disk.

	73 GB SAS (15,000 rpm)
	147 GB SAS(15,000 rpm)
	300 GB SAS(15,000 rpm)
	750 GB SATA (7,200 rpm)

In addition, the D3-10 Storage Array has dual controllers, supports SATA 500GB drives and can be intermixed with FC drives within the same array. RAID-1, RAID-5, RAID-10, RAID-50, and RAID-6 can be installed in mixed configurations. Four host FC ports are built-in as a standard. A maximum of 11 additional disk enclosures, each capable of mounting 12 disk drives can be connected to equate to 144 HDD. The D3-10 Storage Array can support 2 of cache per controller.

StorageManager
StorageManager is the integrated storage software package that provides basic control to NEC's D3-10 Storage Array. This software features GUI display for the configuration, monitoring, error reporting, and performance information on logical disks and controllers.

AccessControl (optional)
Access to the logical disks can be set for individual ports or hosts (LUN masking).

PerformanceMonitor (optional)
Includes real-time status of information on the array's performance, load monitoring, and statistical analysis.

ReplicationSuite (DDR+DSV) (optional)
DDR or Dynamic Data Replication provides for full copies of LUNs. Generally these copies are fractured and re-assigned to other connected hosts for such needs as batch processing, testing with production data, or even parallel backup. DSV or Dynamic Snap Volume provides for a copy of the changed data between two points in time (PIT). This technology facilitates advanced recovery of data from up to 16 earlier states without the need to locate and search through traditional tape medium. Since only the changed data is written, cost savings is realized over the full copy methodology.

Remote Data Replication (optional)
Replicates business volumes defined for each logical disk, enabling use of replicated data at a remote site.