If there is no datafragmentation, which is often the case, it can recover the whole file.
如果不存在碎片,那么它可以恢复完整的文件。
2
Fragmentation and PDQ priority also have a huge effect on the speed of data retrieval and will help table scans.
分段和PD Q优先级也对于数据的检索速度有极大的影响,并有助于表扫描。
3
But, because XFS delayed its allocation decision, it was able to write the data in one fell swoop, improving write performance as well as reducing overall filesystem fragmentation.