为提供容错支持，基于严格一致多副本索引机制，实现数据文件的并行分片传输；
To achieve fault tolerant, the uniform replica index mechanism is adopted as well as parallel stripped transfer.
所述播放方法是利用全局索引和分片索引定位数据包，进行播放操作。
The method for playing utilizes the global index and a slicing index to position the data packet so as to carry out the operation of playing.
应用推荐