jfs：IBM的日志文件系统。
如果可能的话，应该只使用日志文件系统。
If possible, you should use journaling file systems exclusively.
创建数据库并将日志移动到日志文件系统。
Create the database and move the logs to the log file system.
对增强型日志文件系统(JFS2)进行加密。
reiserfs：另一个流行的日志文件系统。
和ext3一样，ext4也是一个日志文件系统。
定义日志文件系统的方法有很多种，但是让我们抓住要点。
You can define journaling file systems in many ways, but let's get right to the point.
为此，ext3堪称非常可靠而且健壮的日志文件系统选择。
For this reason, ext3 has gained a reputation as being a very reliable and robust journaled filesystem choice.
比较新的日志文件系统简化了系统重新启动时的磁盘检查过程。
Newer journaling file systems simplify the disk-check process when the system starts up again.
数据和日志文件系统默认情况下是创建在 /db2fs 上的。
The data and log file systems are created by default under /db2fs.
使用清单8所列的命令创建数据库，并将日志移动到日志文件系统。
Create the database and move the logs to the log file system using the commands in Listing 8.
日志文件系统：许多文件系统都提供日志以防止数据丢失。
Journaled file system: Many file systems provide journaling to prevent loss of data.
如果对于任何卷需要使用非日志文件系统，那么这个卷应该尽可能小。
If you need to use a non-journaling file system for any volume, try to keep that volume as small as possible.
ext3fs主要的弊端之一就是它最初不是作为日志文件系统而设计的。
One of the primary disadvantages of ext3fs is that it was not designed from the ground up as a journaling file system.
日志文件系统在系统崩溃或断电时提供了可靠性，并防止系统崩溃。
Journaling file systems provide reliability and protect against corruption in the face of system crash or power loss.
Reiser4被设计成为全新的日志文件系统，它拥有很多先进的功能。
Reiser4 was designed from scratch as a new journaling file system with many advanced features.
在日志文件系统出现之前，系统崩溃后恢复文件系统往往要耗费大量时间。
Before the advent of journaling filesystems, recovery of a filesystem after a system crash often took a long time.
日志文件系统的一个关键点是从文件系统的观点如何定义操作的“完成”。
One of the keys to a journaled file system is the definition of “completed” from the point of view of the file system.
ReiserFS是从一开始就按照记录日志的意图而开发的日志文件系统。
ReiserFS is a journaling file system that was developed from the ground up with journaling in mind.
但是如众多其他Linux解决方案一样，日志文件系统有多种方案供您选择。
But like many Linux solutions, more than one option is available to you.
那么现在您应该清楚日志文件系统针对的是哪类人群了，但是他们是如何取缔fsck的呢？
So, now you know for whom journaling file systems were created, but how do they obviate the need for FSCK?
对日志文件系统和传统文件系统进行了比较，介绍了XFS在日志文件系统上的改进。
This paper compares journal file systems with traditional file systems and presents the improvement of XFS in journal file system.
ReiserFS于2001年被引进到主流2.4内核(Linux采用的第一个日志文件系统)。
ReiserFS was introduced in 2001 in the mainline 2.4 kernel (the first journaling file system to be adopted by Linux).
它是在ext2fs的基础上开发的，因此缺少一些其他日志文件系统所具备的高级特性(例如分区)。
Being based on ext2fs, it lacks some of the more recent advanced features found in other journaling file systems (such as extents).
公用日志文件系统(CLFS)维护两个重新开始区域，以确保至少有一个有效区域总是可用。
The Common Log File System (CLFS) maintains two restart areas to guarantee that at least one valid area is always available.
下一代系统的开发将继续致力于此；辅之以上一代的优势，它就会是下一代的Linux日志文件系统。
Development continues on this next generation; given its heritage, it will be the next generation in Linux journaling file systems.
当我谈到进一步的区分，如静态和日志文件系统时，我要强调一致性以及某种程度上的文件系统内容的安全性。
When I talk about further distinctions like static and journal file systems, I'm emphasizing the consistency and, to some extent, security of file system contents.
下面就让我们一起简短回顾一下日志文件系统的历史，然后再看一看现行的几种文件系统，看看它们之间有什么区别。
Let's take a short walk through journaling file system history, and then review the file systems available and how they differ.
众所周知的是，IBM是Linux开源社区的一个很重要的贡献者，已经贡献了很多项目，例如日志文件系统、调度程序，等等。
It is also well known that IBM is a strong contributor to the Linux open source community and has contributed features such as journaled file systems, schedulers and more.
另外，与较传统的文件系统方法(比如那些依赖于fsck的系统)相比，日志文件系统大大地缩短了系统崩溃的恢复时间。
Additionally, the crash recovery time for journaling file systems is dramatically reduced compared to more traditional file system methods (such as those that rely on FSCK).
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