子文件
After that, each node propagates its subfile to the other k-1 nodes in the group. 之后，每个节点传输它的子文件到组中其他的k-1个节点。
Based on the analysis of I/O node failure, an efficient fault tolerance method called Round-robin Redundant Backup of Subfile is proposed. 摘要在分析导致I/O节点失效主要原因的基础上，提出一种有效的并行文件系统容错方法：子文件循环冗余备份。
Intelligence Information Subfile 情报信息子文件
Communication Electronic Subfile 通信电子子文件
active subfile record 活动子文件记录
