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Scalable storage architectures support SAN

Posted: 17 May 2007 ?? ?Print Version ?Bookmark and Share

Keywords:scalable storage products? storage area network? petabyte capacity?

NEC's Storage D8 model

NEC Corp. has launched a new line of next-generation scalable storage products that supports storage area network (SAN).

The NEC Storage D series are available in two types. The first is a scalable model that realizes non-disruptive upgrades by adding nodes, the first of its kind in the market. The second achieves excellent cost performance, operation performance and is an entry/low-end model for smaller systems.

Scalable solution
The NEC Storage D8, the next-generation scalable model, promises capacity expansion of up to petabyte level and improves performance linearly, without stopping business operations.

The building block architecture that forms the connection of the storage nodes with high speed switches, and the distributed control architecture that is built with micro processors on each cache module, enable the scalable technology of the D series, claimed to be the first in the market.

Moreover, the resource management technology enables flexible allocation and modification of storage resources through the use of one virtualized storage array, enabling efficient use of storage resources.

The NEC Storage D8 starts from 1 node configuration and can be upgraded up to 4 nodes according to business expansion and the increase of data volume.

All of the hardware components are based on modular design. The server connection adapter module, cache memory module and disk connection adapter module are all managed virtually by resource management technology, realizing logical management of storage resources. All of the hardware resources can be virtualized in this way and a composition change can be easily made according to operation requirements.

Moreover, the failure of the module can be recovered by a normal module without any disruption. The modular design also minimizes the impact on performance even in the case of hardware failure. The double-redundancy of the power supply module can also enable operation even if three power supply modules fail.

Entry, low-end models
The NEC Storage D1 (an entry model) and the NEC Storage D3 (a low-end model), both inherit the operability and reliability of the scalable model and have a 2U(1U=44.45mm) sized small footprint chassis that can install up to 12 hard disk drives (HDDs). The set up wizard of these models simplifies the set up procedure, enabling completion of installation without special knowledge of SAN storage.

The entry/low-end model D1/D3 achieves 2.2 times superior price performance as compared to the existing NEC Storage S series.

The design of 12 HDD in a 2U Chassis achieves 1.2 higher densities than before, and the set up wizard that supports initial installation of storage reduces the installation time by up to 33 percent.

The entry model NEC Storage D1, a single controller model, is offered at $10,393. The model is upgradeable to dual controller model, which can provide higher reliability.

Meanwhile, the low-end model NEC Storage D3 provides higher expandability by connecting a maximum of 11 disk enclosure units, a total of 144 disks which is 2.4 times more than existing models. The maximum port number has been extended to 12, which eliminates the FC switch between the storage and servers, enabling gradual cost reduction at the time of initial installation. Shipments of the D1/D3 models will start in June.

All models support Massive Array of Inactive Disks (MAID) technology, said NEC. This allows for the reduction of power consumption for storage operation and RAID-TM (triple mirror) function, which are suitable for businesses requiring high reliability and high performance. Moreover, the models can mount Serial Attached SCSI (SAS) disks and serial ATA disks together in the same enclosure, enabling reasonable initial costs.

NEC plans to introduce the new series in Japan, followed by expansion to the global market, including North America, Europe, Asia and Oceania.

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