Title :
Highly efficient data migration and backup for big data applications in elastic optical inter-data-center networks
Author :
Ping Lu ; Liang Zhang ; Xiahe Liu ; Jingjing Yao ; Zuqing Zhu
Author_Institution :
Univ. of Sci. & Technol. of China, Hefei, China
Abstract :
This article discusses the technologies for realizing highly efficient data migration and backup for big data applications in elastic optical inter-data-center (inter-DC) networks. We first describe the impacts of big data applications on underlying network infrastructure and introduce the concept of flexible-grid elastic optical inter-DC networks. Then we model the data migration in such networks as dynamic anycast and propose several efficient algorithms. Joint resource defragmentation is also discussed to further improve network performance. For efficient data backup, we leverage a mutual backup model and investigate how to avoid the prolonged negative impacts on DCs´ normal operation by minimizing the DC backup window.
Keywords :
Big Data; computer centres; DC backup window; big data applications; data backup; data migration; dynamic anycast; elastic optical interdata-center networks; flexible-grid elastic optical interDC networks; joint resource defragmentation; mutual backup model; Bandwidth allocation; Big data; Frequency selective surfaces; Optical fiber networks; Routing;
Journal_Title :
Network, IEEE
DOI :
10.1109/MNET.2015.7293303