问一个面试题

foreverleee

如果我有4个METADB，突然坏了2个，问OS还能运行吗？

princejian

当然能运行，四个副本坏了两个，那还有两个正常的呢。

foreverleee

原帖由 princejian 于 2007-8-17 16:26 发表
当然能运行，四个副本坏了两个，那还有两个正常的呢。

   如果在运行的时候，只有一个副本是正常的呢？

kkjerry

重開機可能會有問題~

scode

dui ，只要有一个正常就行

dreammaker

The majority consensus algorithm requires that
you create at least three state database replicas before you build or
commit any metadevices. To reach a consensus, at least two of the three
replicas must be available.
The majority consensus algorithm:
● Makes sure that the system stays running if at least half of the state
database replicas are available.
● Causes the system to panic if fewer than half of the state database
replicas are available.
● Prevents the system from starting the Solaris Volume Manager
software unless a majority of the total number of state database
replicas are available.

From SA-202

public_sd

〉N/2+1喽

lei8c8

运行没有问题,重新启动就有问题