Storage存储

The storage engine is the primary component of MongoDB responsible for managing data. MongoDB provides a variety of storage engines, allowing you to choose one most suited to your application.存储引擎是MongoDB负责管理数据的主要组件。MongoDB提供了各种存储引擎，允许您选择最适合您的应用程序的存储引擎。

The journal is a log that helps the database recover in the event of a hard shutdown. 日志是一种日志，可帮助数据库在发生硬关闭时恢复。There are several configurable options that allows the journal to strike a balance between performance and reliability that works for your particular use case.有几个可配置的选项允许日志在性能和可靠性之间取得平衡，这适用于您的特定用例。

GridFS is a versatile storage system that is suited to handling large files, such as those exceeding the 16 MB document size limit.是一种多功能存储系统，适用于处理大型文件，例如超过16 MB文档大小限制的文件。