LVM系统确保逻辑卷在管理员物理地改变存储位置的同时能够继续正常操作。
The LVM system ensures that our logical volumes continue to operate perfectly while allowing the administrator to physically change where everything is stored.
每一种数据存储位置都具有特定的读写操作负担。
Each of these data storage locations has a particular cost associated with reading and writing operations involving the data.
例如，复杂的 ODBC 调用序列、返回记录到存储位置的绑定、错误情况的处理以及数据库类为您管理的其他操作。
For example, the complex ODBC call sequences, binding of returned records to storage locations, handling of error conditions, and other operations are managed for you by the database classes.
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