Title :
A mirroring technique for SANs in a metro WDM ring under different traffic scenarios
Author :
El-Gorashi, Taisir E H ; Elmirghan, Jaafar M H
Author_Institution :
Sch. of Electron. & Electr. Eng., Univ. of Leeds, Leeds
Abstract :
This paper presents a new data mirroring technique for storage area networks (SANs) in a metropolitan area wavelength division multiplexing (WDM) ring. Two sectioning links are introduced to the ring to help deal with the hot-node scenario created by the SAN nodes and their mirrors. The performance is evaluated through simulation of a network of 24 nodes, 6 wavelengths with 1 Gb/s access node rate and 5 Gb/s SAN node rate under different traffic asymmetries. In addition to the fixed-size (FS) slot scheme, performance is evaluated under two different schemes accommodating variable size packet traffic - variable-size (VS) slot and super-size (SS) slot schemes. Results of average node throughput, queuing delay and transmission buffers packet dropping probability are presented and analyzed.
Keywords :
optical fibre networks; storage area networks; wavelength division multiplexing; bit rate 1 Gbit/s; bit rate 5 Gbit/s; data mirroring technique; hot-node scenario; metropolitan area wavelength division multiplexing ring; sectioning links; storage area networks; transmission buffers packet dropping probability; Bandwidth; Delay; Information retrieval; Mirrors; Storage area networks; Telecommunication traffic; Throughput; Traffic control; Urban areas; Wavelength division multiplexing;
Conference_Titel :
Transparent Optical Networks, 2008. ICTON 2008. 10th Anniversary International Conference on
Conference_Location :
Athens
Print_ISBN :
978-1-4244-2625-6
Electronic_ISBN :
978-1-4244-2626-3
DOI :
10.1109/ICTON.2008.4598660
