jbd
- 网络日志块设备层;流板;射流导流槽;日志块设备;儿童座便器垫
![jbd](../cache/701626.jpg)
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JBD takes another , and in some ways better , approach .
JBD使用另外一种(从某种意义来说是更好的)方法。
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Rather than recording spans of bytes that must be changed , JBD stores the complete modified filesystem blocks themselves .
JBD存储完整的被修改的文件系统块本身,而不是记录必定会被更改的字节范围。
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In ext3 , the journaling code uses a special API called the Journaling Block Device layer , or JBD .
在ext3里,日志记录代码使用一个特殊的称为“日志记录块设备”层或JBD的API。
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Because both data and metadata are journaled , JBD can use the journal to bring both metadata and data back to a consistent state .
因为数据和元数据都被记录,JBD可以使用日志将元数据和数据恢复到一致状态。
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Objective : To observe the clinical effect of Jiangya Baoshen Decoction ( JBD ) in treating early kidney lesion in aged patients with hypertension .
目的:观察降压保肾康治疗老年高血压病早期肾损害的临床疗效。
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In this mode ( called " data = journal " mode ), the JBD journals all changes to the filesystem , whether they are made to data or metadata .
在这种方式下(称之为“data=journal”方式),JBD将所有对数据和元数据的更改都记录到文件系统中。
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It 's quite a nice arrangement , and because the JBD is being developed as a separate , generic entity , it could be used to add journaling capabilities to other filesystems in the future .
这是很好的安排,因为JBD是作为一个单独的、一般实体而开发的,将来它可以用于向其它文件系统添加日志记录能力。