[Linux-cluster] Why kernelmodules?

[Huesser Peter]

Thanks' for information

  Pedro

> -----Original Message-----
> From: linux-cluster-bounces at redhat.com [mailto:linux-cluster-
> bounces at redhat.com] On Behalf Of Lon Hohberger
> Sent: Freitag, 10. November 2006 16:01
> To: linux clustering
> Subject: Re: [Linux-cluster] Why kernelmodules?
> 
> On Fri, 2006-11-10 at 10:32 +0100, Huesser Peter wrote:
> > Hello
> >
> >
> >
> > While comparing the redhat HA solution with linux HA
> > (www.linux-ha.org) we remarked that linux HA does not make use of
> > kernelmodules. What is the advantage off a kernel module solution
over
> > a non-kernelmodule solution. What things can not be done with a
> > non-kernelmodule solution?
> 
> The main reason is that Linux-HA does not include a file system, so it
> doesn't have (nor need) any kernel components.
> 
> In contrast, linux-cluster was built around a file system originally,
so
> there are parts which necessarily need to be in the kernel (namely GFS
&
> DLM).  CMAN was in the kernel in the RHEL4 branch, but now is in
> userland (and plugs in to openais).
> 
> I guess you could port GFS to FUSE if you wanted... *scratches head*
> 
> -- Lon
> 
> 
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