如果下一个记录层的用户数据的记录开始位置预先知道，在用户数据记录之前，在下一个记录层上形成保护块。
If a record start position of the user data is learned beforehand in the next recording layer, the guard block is formed on the next recording layer prior to the recording of the user data.
请记住，由于记录ID是系统创建的域，所以无法在用户数据库之间移植id。
Remember, since the record ID is a system generated field, there is no way to transfer IDs between user databases.
您可以使用tar来创建一个系统备份，该文件系统将压缩到一个可记录的DVD上，然而，现在大多数系统的用户数据非常庞大，一个DVD不能存下。
You may be able to use tar to create a system backup that will fit on a recordable DVD, once compressed; however, most modern systems have enough user data that a single DVD won't hold it all.
用户数据的管理，比如医疗记录。
增加、缺陷及其他由ClearQuest管理的变更请求记录存储在名为“用户数据库”的关系数据库中。
Enhancements, defects, and other change request records managed by ClearQuest are stored in a relational database called the "user database."
使用一个基于企业级图表的用户数据库来创建EnhancementRequests，并且对系统的缺陷加以记录。
Use an enterprise schema-based user database to create Enhancement Requests and log defects against the system.
在这里，我们使用ClearQuestGetDatabaseNameAPI来决定用户要提交记录的用户数据库的名字。
Here, we are using the ClearQuest GetDatabaseName API to determine the name of the user database in which the user is trying to submit the record.
已有的负载平衡方法——记录迁移方法，它是以记录为单位将用户数据从负载高的模块迁移到负载低的模块来达到平衡模块间负载的效果。
There is a method for balancing the load among modules by transferring customer data in units of records from high-load modules to low-load modules.
因此，缺陷盘比例可以被减少，并且由于不准确的记录层信息的应用导致的用户数据的损失可以被防止。
Thus, the defective disc proportion can be reduced, and loss of user data due to application of inaccurate recording layer information can be prevented.
在已经记录了的区域上覆写数据时，在未记录的用户数据区域上进行替换记录来进行逻辑覆写处理。
When data are written over a recorded area, the data are alternately recorded in an unrecorded user data area, thereby performing logical overwrite processing.
在已经记录了的区域上覆写数据时，在未记录的用户数据区域上进行替换记录来进行逻辑覆写处理。
When data are written over a recorded area, the data are alternately recorded in an unrecorded user data area, thereby performing logical overwrite processing.
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