主要推断是飞行员驾驶失误或由于空中交通管制，导航设备出现技术故障或者是两者共同所致。
The main theories are errors by the pilot or by the air-traffic controllers, a technical problem with the navigation equipment or some combination of these.
由于这些技术只使用一份数据副本，所以磁盘仍然会出现单点故障。
Since these technologies do only utilize one copy of the data, the disk would still be a single point of failure.
因此，如果您使用了LPAR或相关技术，那么需要做好准备，因为在另一个物理机器上启动部署管理器虚拟映像可能会出现机器故障。
Thus, if you do use LPAR or related technologies, you'll need provisions for starting the deployment manager virtual image on another physical machine should a machine fail.
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