Hi Brad, Brad Plant wrote: > Hi Tao, > > On Fri, 05 Mar 2010 14:33:36 +0800 > Tao Ma <tao...@oracle.com> wrote: > >> Another way is that you can cp the file to another volume, remove it and >> then cp back. It should be contiguous enough. > > Assuming we *can* still write to the FS (i.e. as more of a preventative > action), would the following do the same? > > cp -a a b > mv b a > > Can the above work as a *hack* online defrag? Will this reduce the amount of > free space fragmentation and therefore stop (or reduce the chance of) this > problem from occurring? Would we need to do it to the entire file system or > just a few larger files? yeah, that should work. you can use debugfs.ocfs2 to see whether a file is more fragmented or not.
Regards, Tao > > Cheers, > > Brad _______________________________________________ Ocfs2-users mailing list Ocfs2-users@oss.oracle.com http://oss.oracle.com/mailman/listinfo/ocfs2-users
