On 10/23/2014 05:27 AM, Daniel Bauer wrote:
Is this normal? Should I check some settings?
Thanks for explanation or hints...
The short answer is that ReiserFS is a journaling file system. Journaling is a mechanism that helps file systems survive crashes. Previously, file systems could not guarantee to have written both data and structure to the physical disk in the event of a crash. This is a good analysis though rather technically abstract http://research.cs.wisc.edu/wind/Publications/sba-usenix05.pdf caching, delayed write and other mechanisms speed the computer's performance, but a at a cost in the event of a disaster. http://www.ibm.com/developerworks/library/l-journaling-filesystems/ <quote> In recent history, journaling file systems were viewed as an oddity and thought of primarily in terms of research. But today, a journaling file system (ext3) is the default in Linux®. Discover the ideas behind journaling file systems, and learn how they provide better integrity in the face of a power failure or system crash. Learn about the various journaling file systems in use today, and peek into the next generation of journaling file systems. .... In general, journaling file systems avoid file system corruption by maintaining a journal. The journal is a special file that logs the changes destined for the file system in a circular buffer. At periodic intervals, the journal is committed to the file system. If a crash occurs, the journal can be used as a checkpoint to recover unsaved information and avoid corrupting file system metadata. </quote> That's from 2008 Also look at man tunefs.reiserfs And of course http://en.wikipedia.org/wiki/Journaling_file_system Also worth reading http://lwn.net/Articles/283161/ http://www.linuxjournal.com/article/4466 -- We know not where our dreams will take us, but we can probably see quite clearly where we'll go without them. - Marilyn Grey -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org