那请问，可是在翻了官方说明之后http://www.sun.com/software/products/lustre/features.xml
To reduce bottlenecks and increase overall data throughput, Lustre uses an intent-based locking mechanism, where file and directory lock requests also provide information about the reason the lock is being requested. For example, if a directory lock is being requested to create a new, unique file, Lustre handles this as a single request. In other file systems, this action requires multiple network requests for lookup, creation, opening and locking.