| 摘要 |
A file system stores data and meta-data in a like fashion. The lowest level of stored file data on disk is a stream, which constitutes a logically contiguous group of bytes. Related streams, such as found in a file, a directory or a subdirectory, are stored in a variable-sized onode data structure. Variable-sized onode data structures are stored in an array of fixed-sized buckets of disk space. Related onode data structures are stored within catalog data structures. The catalog data structures are stored within the array of fixed-sized buckets of disk space. The array of buckets of fixed-sized buckets of disk space is, in turn, stored as a stream.
|
