Re: How do I make every node have direct access to the file system?

On Fri, May 8, 2009 at 4:32 PM, CooLCaT@Vienna <[email protected]> wrote:

>
>
>
> CooLCaT@Vienna wrote:
> >
> >
> > i am trying following apporoach:
> >
> > the root file system resides on a nfs share. every node has a harddisk
> > with only the boot partition on it. we want to achieve, that every slave
> > node can become master node so that all nodes must die before cluster
> gets
> > offline.
> >
> > any better ideas somebody?
> >
> > regards
> >
> > cc
> >
> >
>
> ok
>
> after reading this:
>
> *** NOTE: NFS client is not yet supported in the new OpenSSI 2.6 kernel ***
>
> i guess i have to do something else:
>
> actually we want that every slave node has the ability to get a master
> node.
> as far as i know drbd can only mirror two nodes.
>
> my approach was, that simply change the root file system to a nfs share and
> leave the boot
> partition on the local machine, but it seems that this isnt working as
> expected.


You already tried?  What problems did you encounter?  It is not yet
supported only because we haven't looked at fixing parallel NFS.  There is
only one bug report in our Sourceforge tracker and there doesn't seem to be
much demand for the fix (until recently).

i always thought that when i use drbd, that if the master node goes down,
> the next potential node mounts the filesystem and takes over.
>
> did i missunderstood?


You were talking about CFS?

-Roger

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