The I/O Manager and file system driver share management of a Volume Parameters Block (VPB) that ties the storage stack and the file system's volume stack together.

The I/O Manager and file system driver share management of a Volume Parameters Block (VPB) that ties the storage stack and the file system's volume stack together.

I/O管理器和文件系统驱动共享对卷参数块（VPB）的管理，它把存储堆栈和文件系统的卷堆栈捆绑在一起。