On Aug 02, 2007 17:55 +0800, Coly Li wrote: > These days, when I read the source code of mke2fs, I found an option -f > to set the fragment size. > > But I can not find any explaining for ext3/4 framgment from google, > excepting someone saying ext2/3 does not support this feature. > > Can anyone tell me what is the function or purpose of fragment of ext > file system ? This is an obsolete concept from BSD that was never used by ext[234]. Consider a "fragment" in this context to be the same as a "tail" for reiserfs. A very small file, or the end of a file that is less than a block. Cheers, Andreas -- Andreas Dilger Principal Software Engineer Cluster File Systems, Inc. - To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html