Hi Tao, On Fri, 05 Mar 2010 15:03:50 +0800 Tao Ma <tao...@oracle.com> wrote:
> > 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. Ok, so it will defrag files, but will it help with the inability to write to the file system issue reported in http://oss.oracle.com/bugzilla/show_bugcgi?id=1189 ? Cheers, Brad
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