Jin Xiong Jianyu Li Rongfeng Tang Yiming Hu Improving data availability for a cluster file system through replication. 1-8 2008 IPDPS http://dx.doi.org/10.1109/IPDPS.2008.4536154 conf/ipps/2008 db/conf/ipps/ipdps2008.html#XiongLTH08