Even though it is simple and it supports any physical device storage type, data migration/replication across systems and host instances synchronization across organization is not possible.
尽管它很简单而且支持任何物理设备存储类型，但是不可能实现跨系统数据迁移/复制和跨组织宿主实例同步。
To maintain this type of persistence, application components must be capable of handling concurrency, connection management, data integrity, and synchronization.
为了维护这种持久性，应用程序组件必须能够处理并发性、连接管理、数据完整性和同步。
POSIX provides locking and synchronization support through the pthread_mutex data type.
POSIX 通过 pthread_mutex 数据类型提供锁定和同步支持。
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