Inode

基本解释

Though it works in client/server inode, FTP has unique feature:doubly linked.
ftp虽然采用客户／服务器工作模式．但有其鲜明的特色：双重连接。
For example, since a file's permissions are contained within its inode, both links have the same permissions.
例如，因为一个文件的权限包含在其节点内，所以两个连接具有相同的权限。
Without allocation groups, the XFS filesystem code could become a performance bottleneck, forcing IO-hungry processes to "get in line" to make inode modifications or performing other kinds of metadata-intensive operations.
如果不使用分配组,XFS文件系统代码可能成为一种性能瓶颈,迫使大量需求IO的进程“排队”来使索引节点进行修改或执行其它种类的元数据密集操作。
Each file and directory is an individual INODE(Ex. A directory named test with 5 files in it adds up to 6 INODES).
每个文件夹都算一个独立的INODE（例如：一个含5个文件的文件夹，那么就算6个INODES）
red black tree embedded in inode
Inode内嵌式红黑树