Designing and application of SAN extension interface based on CWDM

Leihua Qin; Shengsheng Yu; Jingli Zhou

doi:10.1117/12.634228

5 December 2005 Designing and application of SAN extension interface based on CWDM

Leihua Qin, Shengsheng Yu, Jingli Zhou

Proceedings Volume 6022, Network Architectures, Management, and Applications III; 602236 (2005) https://doi.org/10.1117/12.634228
Event: Asia-Pacific Optical Communications, 2005, Shanghai, China

Abstract

As Fibre Channel (FC) becomes the protocol of choice within corporate data centers, enterprises are increasingly deploying SANs in their data central. In order to mitigate the risk of losing data and improve the availability of data, more and more enterprises are increasingly adopting storage extension technologies to replicate their business critical data to a secondary site. Transmitting this information over distance requires a carrier grade environment with zero data loss, scalable throughput, low jitter, high security and ability to travel long distance. To address this business requirements, there are three basic architectures for storage extension, they are Storage over Internet Protocol, Storage over Synchronous Optical Network/Synchronous Digital Hierarchy (SONET/SDH) and Storage over Dense Wavelength Division Multiplexing (DWDM). Each approach varies in functionality, complexity, cost, scalability, security, availability , predictable behavior (bandwidth, jitter, latency) and multiple carrier limitations. Compared with these connectiviy technologies,Coarse Wavelength Division Multiplexing (CWDM) is a Simplified, Low Cost and High Performance connectivity solutions for enterprises to deploy their storage extension. In this paper, we design a storage extension connectivity over CWDM and test it's electrical characteristic and random read and write performance of disk array through the CWDM connectivity, testing result show us that the performance of the connectivity over CWDM is acceptable. Furthermore, we propose three kinds of network architecture of SAN extension based on CWDM interface. Finally the credit-Based flow control mechanism of FC, and the relationship between credits and extension distance is analyzed.

Citation Download Citation

Leihua Qin, Shengsheng Yu, and Jingli Zhou "Designing and application of SAN extension interface based on CWDM", Proc. SPIE 6022, Network Architectures, Management, and Applications III, 602236 (5 December 2005); https://doi.org/10.1117/12.634228

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KEYWORDS

Coarse wavelength division multiplexing

Interfaces

Data storage

Switches

Dense wavelength division multiplexing

Network architectures

Signal detection

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