backup capacity 备用容量
Capacity backup adds to availability and allows for a minimum set of active processes that can be activated in the event of an emergency.
计算能力备用有助于提高可用性，允许只启用最少量的处理资源，可以在发生紧急事件时启用更多的处理资源。
Although many of these storage media have high capacity, a backup tool with compression capabilities is a big plus, eliminating the inconvenience of multiple disks or large uploads.
尽管这些存储介质中有许多具有高容量，但具有压缩能力的备份工具是一大优势，它消除了多个磁盘或大型上传的不便。
Tasks include planning and administering the database, tuning for performance and capacity, creating and maintaining indexes and optimizing queries, monitoring, and managing backup and recovery.
任务包括计划并管理数据库、调优性能与容量、创建和维护索引并优化查询、监测、以及管理备份与恢复。
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