Storage over SONET optimizes DWDM

摘要

Many companies have made large investments in dense wavelength division multiplexing technologies to meet growing data and storage requirements. DWDM systems provided the first basic connectivity for storage protocols on metropolitan dark fiber infrastructure. However, there are several drawbacks to using DWDM systems for storage over distance. By dedicating an entire wavelength to a single, underutilized storage link, the capacity of the wavelength is wasted. DWDM also presents scalability challenges.Today's rapid wavelength deployment requires complex network redesign, complex optical amplification and deployment of additional DWDM terminals. Finally, the lack of monitoring and fault isolation capabilities drives up operational costs.