Overview of Backup and Recovery:About Zero Data Loss Recovery Appliance

个人自行阅读时候，翻译的文档。因为比较渣，如果有更合理或者错误的地方烦劳告知，我会做修改。

Zero Data Loss Recovery Appliance (Recovery Appliance) is a cloud-scale Engineered
System that is designed to protect all the Oracle Databases in your enterprise. It
achieves significant efficiencies in performance and manageability of backups by
offloading most Oracle Database backup and restore processing to a centralized
Recovery Appliance.

零数据丢失恢复设备（恢复设备）是一种云规模工程化系统，旨在保护企业中的所有Oracle数据库。 通过将大多数Oracle数据库备份和恢复处理分流到集中式恢复设备，可以显着提高备份的性能和可管理性。

Recovery Appliance stores and manages backups of multiple databases on a unified
disk pool, using an incremental-forever backup strategy described in “About the
Incremental-Forever Backup Strategy for Recovery Appliance”. It continually
compresses, deduplicates, and validates backups at the Oracle block level, while
quickly creating full virtual backups on demand.

恢复设备在统一存储和管理多个数据库的备份磁盘池，使用增量 - 永远备份策略中描述的“关于恢复设备的增量 - 永久备份策略“。 它不断压缩，重复数据删除和验证Oracle块级别的备份根据需要快速创建完全虚拟备份。

Multiple client databases—known as protected databases—share a single, centrallymanaged Recovery Appliance catalog that resides on the Recovery Appliance. All protected databases that send backups to Recovery Appliance must use this catalog.Virtual private catalog technology enforces separation of duties among the protected database DBAs and the Recovery Appliance administrator.

多个客户端数据库（称为受保护的数据库）共享位于恢复设备上的单个集中管理的恢复应用装置目录。 将备份发送到恢复一体机的所有受保护的数据库必须使用此目录。虚拟专用目录技术强制在受保护的数据库DBA和恢复一体机管理员之间分担责任。

Real-time redo transport minimizes the window of potential data loss that exists
between successive archived log backups. Redo data from the protected database is
written directly to the recovery appliance as it is generated.

实时重做传输将存在的潜在数据丢失的窗口最小化在连续的归档日志备份之间。 从受保护的数据库重做数据是在生成恢复设备时直接写入恢复设备。

Recovery Appliance is integrated with Cloud Control and RMAN. An accompanying
media management library is used for communication between RMAN and Recovery
Appliance. Cloud Control enables administrators to centrally manage and monitor the
data protection of all protected databases in the enterprise.

恢复设备与云控制和RMAN集成。 伴随补充的介质管理库用于RMAN和Recovery之间的通信。 云控制使管理员能够集中管理和监控企业中所有受保护数据库的数据保护。

Oracle Secure Backup, the tape management component of Recovery Appliance, is
preinstalled on Recovery Appliance. For disaster recovery, Recovery Appliance can
replicate backups to other Recovery Appliances. A single Recovery Appliance can
service multiple protected databases of different versions and from different
platforms.

恢复设备的磁带管理组件Oracle Secure Backup是预先安装在恢复设备上。 对于灾难恢复，恢复设备可以将备份复制到其他恢复设备。 单个恢复设备可以服务不同版本和不同的多个受保护的数据库平台。

Using RMAN with Recovery Appliance
You can use most RMAN commands to back up to and recover from Zero Data Loss Recovery Appliance (Recovery Appliance).The following sections provide additional information about using RMAN with Recovery Appliance:
• “About RMAN in a Recovery Appliance Environment”
• “Configuring RMAN to Make Backups to Recovery Appliance”
• “Unregistering a Target Database in a Recovery Appliance Environment”
• “About Real-Time Redo Transport for Recovery Appliance”
• “About the Incremental-Forever Backup Strategy for Recovery Appliance”

您可以使用大多数RMAN命令备份和恢复从零数据丢失恢复设备（恢复设备）。以下部分提供有关使用RMAN及恢复设备的其他信息：
•“关于恢复设备环境中的RMAN”
•“配置RMAN以备份到恢复设备”
•“在恢复设备环境中取消注册目标数据库”
•“关于恢复设备的实时重做传输”
•“关于恢复设备的增量 - 永久备份策略”