CO-WORLD GmbH, the Leading Manufacturer of NDAS Solutions: Storage Confidence

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The demand for storage capacity is growing at rates of 50~60 percent every year. Normally the companies with NAS systems would upgrade their storage structure to SAN systems for more efficient management and to lower the management cost.

However the cost to for iSCSI and Fibre Channel infrastructures that is being used in the conventional SAN systems are very high, not feasible for small and medium businesss. In addition, inspite of the high-rate growth of the capacity, the management resources would most likely remain the same.

In short, the storage systems today demand for simpler storage for efficient storage management. NDAS-NAS offers high scalable, easy-to-cluster, and high available enterprise storage solution at an afforable pricing for SMBs. NDAS-NAS is designed in mind with the ability to be clustered and easily maintained. NDAS' unique easy expansion feature allows SMBs to start small but expand the storage or NAS-heads according to their storage or performance needs, offering an attractive alternative for NAS systems.

Network direct attached storage (NDAS) is a network storage architecture that allows direct attachment of existing ATA/ATAPI devices to Ethernet without a separate server.

Unlike NAS architectures that use TCP/IP, NDAS uses a TCP-like lean protocol that lends itself well to high-performance hardware realization.

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Thanks to the simple NDAS architecture and protocol, an NDC (NDAS disk controller) achieves a maximum throughput of 55 Mbytes/s on Gigabit Ethernet, which is comparable to that of a high-performance disk locally attached to a host computer. For 16 Bay NDAS system the aggregated bandwidth reaches 8GB/s.

NDAS system is built on the industrie's standard Gigabit Ethernet network instead of expensive iSCSI or Fibre Channel. Moreover, unlike other architectures such as NAS, SAN, and USB mass storage, no server computer intervenes between the storage and the client hosts.


	iSCSI	FibreChannel	NDAS

Performance	Low / up to 1 GB/s	High - up to 4 GB/s	High - up to 8 GB/s

Aquisition Cost	Medium	High	Low

Standards based	mostly	Not at all	Yes - Ethernet and SATA

Price / GB	medium	Very high	Low - comparable to external DAS

Setup and Maintenance	Difficult	Difficult	Very easy

Applications

For more detailed information about available application and solution by NDAS please contact:

info@coworldcs.com

CO-WORLD GmbH, the Leading Manufacturer of NDAS Solutions: The New Storage Paradigm