Smon will initiate the instance recovery 然后， smon将开始进行实例恢复。
2.
Rolling back dead transactions as part of smon recovery . this phase is called transaction recovery Smon自动回滚失败的事务。这个阶段叫事务恢复。
3.
When the database instance fails on oracle , there is no need for human intervention as the oracle smon background process will detect the problem as soon as you restart your machine 当oracle上的数据库实例失败时，不需要人工干预，因为只要您重启计算机， oracle smon后台进程就会检测问题。
