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Re: [Linux-cluster] Using GFS2 as a local file system



Hi,

On Fri, 2007-03-09 at 00:35 -0500, Wendy Cheng wrote:
> Lin Shen (lshen) wrote:
> 
> >We have a situation that we may need to use GFS2 to share storage in our
> >system in the future and to ease the pain of transition at that time
> >(convert files into GFS), we're thinking of using GFS2 just as a local
> >file system for now. 
> >
> >How is GFS2 compared to other popular local file systems such as ext3
> >and Reiser in terms of performance, overhead etc? Are we hitting the
> >wrong direction totally by using GFS2 just as a local file system? 
> >
> >BTW, we've run bonnie on local GFS2, and the performance is decent
> >compared to ext3 (90%).
> >
> >
> >  
> >
> I personally think using GFS (both GFS1 and GFS2) as a local filesystem 
> has many advantages. The only issue (I think ..haven't checked mkfs code 
> in ages) is lock protocol is hard coded into on-disk super block during 
> mkfs time - but fixing this should be trivial. If we allow 
> interchangeable between lock_nolock and lock_dlm, then the filesystem 
> should be able to migrate from single node into cluster environment. It 
> is very nice (IMHO).
> 
You can override the settings in the sb on the mount command line,

Steve.



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