如果活动aws实例失败了，您可以启动一个新实例并重用现有的EBS存储恢复服务器。
If your live AWS instance fails, you can start a new instance and reuse the existing EBS storage to restore your server.
例如，可能必须修改服务器上运行的脚本以使用灾难恢复存储设施。
For example, you may have to modify the scripts that run on them to use the disaster recovery storage facilities.
这个日志对故障恢复也很有用：如果元数据服务器发生故障，它的日志就会被重放，保证元数据安全存储在磁盘上。
The journal is also useful for failure recovery: if the metadata server fails, its journal can be replayed to ensure that metadata is safely stored on disk.
在本节，我们会增强示例应用程序以在关机之前将存储库保存到服务器上并在服务器再启动时加以恢复。
In this section, the sample application is enhanced to save the repository on the server before shutdown and restore it when the server starts again.
要使用NIM服务器中存储的备份镜像来恢复您的VIO服务器，您需要在HMC中执行下列命令(请参见清单7)。
To use the backup images stored on your NIM server to recover your VIO server, you need to issue the following command on the HMC (see Listing 7).
Managed - non - persistent使用消息引擎存储请求，因此您可以在网络或服务器发生故障时恢复丢失的消息。
Managed-non-persistent USES a message engine to store requests, and so can recover from loss of messages due to network and server failures.
Google文件系统至少在三台名为“块服务器”(chunkservers)上存储大体积数据(一般为64mb)；如果一台块服务器发生故障，那么主服务器会负责将数据恢复到新的区域。
GFS stores each chunk of data, typically 64mb in size, on at least three machines called chunkservers; master servers are responsible for backing up data to a new area if a chunkserver failure occurs.
救援服务器(salvager)—尽最大努力恢复位于文件服务器上的AFS卷内存储的所有数据。
Salvager server (salvager) - Provides best effort to recover any data stored in AFS volumes on a file server.
一旦memcached服务器恢复可用，应用程序就应该自动尝试存储数据。
Once the memcached server becomes available again, your application should automatically try to store the data.
因为流程状态存储在数据库，所以流程引擎在服务器关闭之后可以恢复运行流程。服务的关闭是由于硬件故障或者正常维护。
Because the process state is stored in a database, the process engine can also recover running processes after a server shutdown, due to hardware failure or regular maintenance.
您可以在队列中，暂停和恢复下载，下载密码保护的服务器和存储您的密码在您的全系统，安全的钥匙串。
You can queue, pause and resume downloads, download from password-protected servers and store your passwords in your system-wide, secure keychain.
您可以在队列中，暂停和恢复下载，下载密码保护的服务器和存储您的密码在您的全系统，安全的钥匙串。
You can queue, pause and resume downloads, download from password-protected servers and store your passwords in your system-wide, secure keychain.
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