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Journaled File System for FreeBSD (JFS4BSD) 计划已经将JFS技术从IBM/Linux移植到FreeBSD。它使用一个基于日志的byte水平的文件系统,它主要面向事务处理和高性能的系统。它与非日志文件系统相比最大的优势是它的快速重起功能:JFS可以把一个文件系统恢复到初始状态,fsck检查的时间大大缩短,它可以很容易地在几秒钟或几分钟内快速地将文件系统恢复到上次完好的状态。jfsutils已经可以在FreeBSD上进行编译了。
有关JFS的详细信息,大家可以看看这些:
The jfsutils is now finally under a compilable state under FreeBSD. In order to use it, please get a recent CVS snapshot from IBM's servers.
IBM's AnonCVS server is at : :pserver:anoncvs@oss.software.ibm.com/usr/cvs/jfs
The password is "anoncvs".
You will need to apply the following patch. FreeBSD -CURRENT
Note: Support for -STABLE is only for testing. STABLE is not guaranteed, as the JFS4BSD project will be (hopefully) integrated into CURRENT, and it differs a lot!
Note: Please turn of the -O2 option which is enabled in the distributed jfsutils, if you would like exact debugging output! |
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