Now imagine if the database were smart enough to sense that a large percentage of sorts were spilling to disk and paged the DBA to inform them of the problem.
现在假设数据库足够聪明，可以感知到大量排序溢出到磁盘上，这时可以呼叫数据库管理员，把问题告诉他们。
2
Therefore, it makes sense to spend some time optimizing the disk hardware.
因此，花一些时间对磁盘硬件进行优化是有意义的。
3
The unit of procurement for large installations, however, will almost certainly be the "pod." In that context, adding capacity one server or disk at a time starts to make little sense.