然后可以向备用计算机发出接管命令。
You can then issue the takeover command on the standby machine.
接管在主要计算机或备用计算机上不能正常运行。
联锁系统由操作冗余的主备用计算机配置构成。
The interlocking system is composed of an operationally redundant active and standby computer configuration.
将主要机计算机上生成的备份文件传输到备用计算机。
Transfer the backup files generated on the primary machine to the standby machine.
下面的命令将把数据库还原到备用计算机上（清单5）。
The command below will restore your database on the standby machine (Listing 5). You need to repeat this command for each of your databases
现在，我们可以从主要计算机上备份数据库，并将其还原到备用计算机上。
Now, it is time to backup the database from your primary machine and restore it on the standby.
而且，备用计算机和主要计算机上数据库的状态现在都应该处于“Peer”状态。
Also, the state now for both databases on the standby and primary should be in the "Peer" state.
要将数据库还原到备用计算机，请使用您的DB2用户ID登录到备用计算机。
To restore the database to the standby machine, log on to the standby machine with your DB2 user ID.
在备用计算机和主要计算机上的数据库成功启动后，您需要确保两个数据库处于同步状态。
After the databases on the standby and primary machines are started successfully, you need to ensure that both databases are in sync.
因此，当主要计算机重新联机之后，主要计算机和备用计算机上的数据库可能会失去同步。
Therefore, when the primary is back online again, the databases on the primary and standby might be out of sync.
SQL30081N在主要计算机或备用计算机上启动HADR时检测到通信错误。
SQL30081N A communication error has been detected when starting HADR on the primary or standby machine.
因此，必须在备用计算机上执行如下所示的“takeover byforce”命令。
Therefore, a "takeover by force" command, shown below, must be performed on the standby machine.
在主要计算机或备用计算机上启动DB 2HADR之前，正确设置所有HADR参数的值非常重要。
It is critical that all the HADR parameters be set with proper values prior to starting DB2 HADR on either the primary or standby machine.
另外，还需要先在备用计算机上启动DB 2HADR，然后才可以在主要计算机上启动它。
In addition, DB2 HADR needs to be started on the standby machine first, before it is started on the primary machine.
在数据库处于对等模式之后，主要计算机和备用计算机上的DB 2HADR服务器就准备就绪可供使用了。
Once the databases are in peer mode, the DB2 HADR servers on the primary and standby machines are ready for use.
在备用计算机上，首先禁用数据库，然后发出starthadr命令，将其作为备用数据库启动(清单7)。
On the standby machine, first deactivate the database and then issue the start hadr command to start it as the standby database (Listing 7).
备用计算机的状态将暂时变为“Disconnected”，因为发生接管时在网络中找不到主要计算机（清单12）。
The state will be changed to "Disconnected" for a while, since the primary is not available from the network at the time of takeover (Listing 12).
在接管之后，WebSphereApplicationServer需要建立新连接才能访问备用计算机上的数据库。
After the takeover, WebSphere Application Server needs to get a new connection to access the database on the standby machine.
在HADR状态角色下，您将看到用于备用计算机的“Standby”状态和用于主要计算机的“Primary”状态。
Under the HADR status role, you will see "Standby" for the standby machine and "Primary" for the primary machine.
备用计算机上的状态变为“Remotecatchuppending”(清单11)，这意味着备用计算机失去了到主要计算机的连接。
The state on the standby machine becomes "Remote catchup pending" (Listing 11), meaning that the standby has lost the connection to the primary.
WebSphereApplicationServer不需要知道有关备用计算机的任何信息，因为在DB 2服务器端支持高可用性和客户端重新路由功能。
WebSphere Application server doesn't need to know anything about the standby machine, since the high availability and client reroute features are supported on the DB2 server side.
WebSphereApplicationServer不需要知道有关备用计算机的任何信息，因为在DB 2服务器端支持高可用性和客户端重新路由功能。
WebSphere Application server doesn't need to know anything about the standby machine, since the high availability and client reroute features are supported on the DB2 server side.
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