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D8 Series adopts building block architecture for the first time in the industry while having function and performance of high-end class storage. Non-disruptive update from small-scale to large-scale is available.

  • From 8 host ports and 3 HDD (min.) to 64 host ports and 1536 HDD (max.),this model can start with small configuration and offers non-disruptive upgrade.
  • Storage resources such as host post and HDD can be virtualized. The resources can be managed simply and flexibly by virtualization.
  • High reliability technology for high-end class from the minimum configuration.
  • High perfomance with new RAID engine and SAS Wide Link.
  • Saving energy with MAID technology.


Model NameD8-30
Chassis Structure Scalable from 1 node to 4 nodes. Up to 32 disk enclosures can be connected to 1 node. One disk enclosure can house up to 12 disk drives.
Host Interface Fibre Channel (up to 800MB/s)
Number of Host Port 8 ports - 64 ports (with optional HD) (*1)
Cache MemoryCapacity  8GB - 128GB
Battery backup time  Unlimited (saved to flash memory)
RAID level SAS : RAID-0, 1, 10, 3, 3DP, 5, 50, 6, TM
SATA : RAID-5, 50, 6, TM
Disk DriveDisk drive interface SAS/SATA (up to 300MB/s)
Capacity / Rotation SpeedSAS 147GB, 300GB, 450GB (15,000rpm)
SATA 750GB, 1000GB (7,200rpm)
Storage Capacity (*2)SAS147 GB Disk drive 142GB - 195.1TB
300 GB disk drive 288GB - 393.2TB
450 GB disk drive 440GB - 601.0TB
SATA750 GB Disk drive 738GB - 1008.0TB
1000 GB Disk drive 984GB - 1344.0TB
Number of Disk Drives 3 - 1,536 (with optional DD) (*1)
Support OS (*3) Microsoft Windows Server 2008, Microsoft Windows Server 2003, HP-UX, Solaris, AIX, Red Hat Enterprise Linux, MIRACLE LINUX, Asianux, VMware, Citrix XenServer(*4)
Chassis Dimensions (width x depth x height)Disk Array Controller 480 x 600 x 218 mm (5U)
Disk enclosure 480 x 540 x 86.5 mm (2U)
WeightDisk Array Controller 60kg or less
Disk enclosure 29kg or less
Power Requirements AC100 - 240V single phase 50/60Hz
Power ConsumptionSAS 1,850 - 60,720W
SATA 1,790 - 53,040W

*1 : Optional HD or DD can be exclusively added to each node.

*2 : Calculateded on "1GB=1,000,000,000B" basis.

*3 : There might be some restrictions on the OS when disk array unit is connected through fibre channel interface. Supported OS/version will be gradually added to the list. For more informatin, please feel free to contact NEC.

*4 : Planned to be supported.


High Operability

Building block architecture is adopted for the first time

The D8 Series can be upgraded like accumulating blocks by adopting building block architecture. Host ports, cache memory and disk capacity can be increased in accordance with the increase of the task. The resources within the storage can be virtualized and distributed dynamically to the tasks. Starting with the minimum cost, expandable to midrange or even high-end class, the D8 can maintain the best size for the company’s requirement.

Flexible expansion available for changing environments

The D8 Series can be flexibly upgraded to meet the customer’s requirement. It is easy to increase the number of host ports when it is required to increase the number of the connected servers. It is also easy to increase the number of disk drives when it is required to expand the data capacity. In addition, when it is required to enhance the performance of the storage to startup a new business for instance, it can be seamlessly upgraded by just adding the nodes.


Resources can be changed non-disruptively and flexibly by advanced virtualization technology

Resources within the storage such as Host Directors, Cache Modules and Disk Drives are managed by virtualized resource pool. The resources can be allocated to each task from the pool. They also can be added or reallocated to other tasks non-disruptively. Flexible accommodation to the change of business environment is available with this technology. GUI of the Web client can show the status of the resources.

Easy allocation

Allocating different partitions to every task prevents influence of the task on each other.

The D8 Series can divide the storage into some logical partitions. When some storages are consolidated and many different tasks are operated with one storage, each task has its own partition and can be isolated from each other. By this technology, the influence of the task on each other can be prevented. The resources can be added to or taken away from the partition flexibly. The administrator of each partition cannot access the other partitions, so it is safe and secured.

High availability, high reliability

High reliability technology of high-end class storage

D8 Series adopts high availability technology and platform technology for high-end class even from the minimum configuration.

D8 Series adopts high availability technology and platform technology for high-end class even from the minimum configuration.

Power supply of each line has redundance, and two lines are duplicated, so that the business can continue even when three power supplies fail if the server path is duplicated.

RAID-TM for HDD has high speed of RAID-1 and reliability of RAID-6 at the same time, so that the operation can continue even when double failure occurs to the HDDs of the same RAID.

When one of the host directors fails, the influence on the other controllers is minimal.

High Operability

New 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.

Saving energy with MAID Technology

MAID Technology to reduce the power consumption of disk drives

The larger the scale of system becomes, the more power is consumed and it has an impact on running cost. The D Series adopts MAID (*) technology aiming at saving energy.

By dedicated software control, this system turns off the motor power of unused disk drives. This lead to reduce max.30% of the power consumption, compared with the conventional models.

*1 MAID : Massive Array of Inactive Disks.