[Linux-cluster] unable to umount GFS

[Adam Manthei]

On Thu, Dec 23, 2004 at 03:07:17PM -0000, Raj  Kumar wrote:
> Thank you very much!   
> PS: I didn't notice until now that all messages were not sent to linux-cluster. I'm sending them now with the hope that it will be useful to someone!

Much appreciated.

> On Thu, 23 Dec 2004 Adam Manthei wrote :
> >On Wed, Dec 22, 2004 at 11:32:18PM -0000, Raj  Kumar wrote:
> > > >You can't unmount GFS if the node you are trying to unmount is also
> > > >exporting GFS via NFS.  The filesystem busy error means just that, it's
> > > >busy.  If you want to unmount GFS, you will first need to stop GFS on that
> > > >node.
> > >
> > > nodeA: connected to storage and exports GFS filesystem via NFS
> > > No clients are using the NFS export.
> > >
> > > What procedure do I follow to cleanly shutdown GFS on nodeA?
> > >
> > > Steps:
> > > unmount all GFS filesystems
> > > shutdown lock server using gulm_tool shutdown localhost.
> > >
> > > Is the above sequence correct? If yes, I am unable to complete step 1 unmounting.
> > >
> > > >If you want to unmount GFS, you will first need to stop GFS on that
> > > >node.
> > > Were you referring to clients using NFS exports in statement "stop GFS on that node" or nodeA. No one is using NFS exports and GFS filesystem on nodeA.
> > >
> > > I'm sorry to bother you, but would very much appreciate your comments!
> > > Thank you!
> > > Raj
> >
> >It doesn't matter that nobody is using NFS in your above example.  NFS is
> >using GFS! and that is why you are unable to unmount GFS.
> >
> >So...
> >
> >Step 1. Stop Exporting NFS (at least stop exporting GFS)
> >Step 2. Make sure nothing else on the system is using GFS
> >Step 3. Umount GFS
> >Step 4. stop the lock servers.
> >
> >Steps 1-3 are the same for any other filesystem.  There is nothing special
> >going on here.  The init scripts will also help with the ordering.
> >
> >service nfs stop
> >service gfs stop
> >service lock_gulmd stop
> >service ccsd stop
> >service pool stop
> >
> >--
> >Adam Manthei  <amanthei at redhat.com>

-- 
Adam Manthei  <amanthei at redhat.com>