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 ）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 s clear that the ext3 developers have met their goal of creating a high - quality journaling filesystem that linux users can upgrade to easily and confidently 很明显， ext3开发者已经达到了他们要创建一个高质量的日志文件系统的目标， linux用户不用费什么力气就可以放心的升级到这一文件系统。
Using database journaling techniques , jfs can restore a file system to a consistent state in a matter of seconds or minutes , versus hours or days with non - journaled file systems 通过使用数据库日志技术， jfs能在几秒或几分钟之内把文件系统恢复到一致状态，而非日志文件系统却要花上几小时甚至几天才能完成。
Jfs provides improved structural consistency and recoverability and much faster restart times than non - journaled file systems such as hpfs , ext2 , and traditional unix file systems Jfs提供了改进的结构化一致性和可恢复性，以及比非日志文件系统（例如： hpfs 、 ext2和传统unix文件系统）快得多的系统重启时间。
Scalable and robust , its advantage over non - journaled file systems is its quick restart capability : jfs can restore a file system to a consistent state in a matter of seconds or minutes 它具有可伸缩性和健壮性，与非日志文件系统相比，它的优点是其快速重启能力： jfs能够在几秒或几分钟内就把文件系统恢复到一致状态。
These include papers on journaling file systems , parallel grid computing , open source alternatives to commercial software , and the linux solutions catalog 这其中包括power上linux的日志文件系统（ journaling file systems ） ，利用power上的linux进行并行网格计算， power上linux商业软件的开放源代码方案，以及linux解决方案编录，等等。
The more well - known journaling file systems current on linux , like reiser file system reiser fs and journaling file system , are not available on freebsd , mostly for security reasons 当前linux上更著名的日志文件系统在freebsd上是不可用的，这些系统中包括reiser file system ( reiser fs )和journaling file system ( jfs ) ，这主要是出于安全方面的考虑。
This means that using software raid does not allow you to escape filesystem issues , such as long and potentially problematic fscks if you happen to be using a non - journalled or flaky filesystem 这意味着，使用软件raid并不能避开文件系统问题，例如，如果您恰好在使用一种非日志文件系统或者定期整理碎片的文件系统，则可能存在耗时且易出问题的文件系统检查。
However , it is a performance disadvantage when compared to other journaling file systems , such as veritas vxfs and transarc episode , which use different logging styles and lazily write log data to disk 但是，与其它日志文件系统相比，它在性能上处于劣势。其它日志文件系统，如veritas vxfs和transarc episode ，使用不同的日志风格并且缓慢地将日志数据写入磁盘。
The reiserfs filesystem is arguably the most ambitious journaled filesystem development project because it s not just a port of an existing filesystem to the linux kernel xfs , jfs , nor is its design based upon that of an earlier filesystem as is ext3 Reiserfs文件系统堪称最有魄力的日志文件系统开发项目，因为它不只是将现有的文件系统移植到linux内核（比如： xfs 、 jfs ） ，它的设计也不是象ext3那样基于早先的文件系统。
