[Lustre-discuss] new ost not recognized

[Harald van Pee]

Hi,

I just unmount all clients (mdt included) and mount again and now everything 
works as expected.
The strange thing is that just some clients do not recognize the new osts.
Of course I will try to update everything to most recent lustre version as 
soon as possible, but would prefer if I would have a couple of days for doing 
this, but don't have.

Harald

On Monday 28 April 2008 10:04, Harald van Pee wrote:
> I just have recognized, that our lustre filesystem was not used on the
> client which was not aware about the new disk space.
> After umount followed by mount, all compute clients but the mds are aware
> of all 12 osts.
> Should I just unmount the mdt and maybe all clients before or is there
> another possibility to recognize the new ost on mds?
>
> Harald
>
> On Monday 28 April 2008 01:01, Harald van Pee wrote:
> > I have mounted two new ost to an existing lustre fs of 10 ost in total.
> > It seams that everything was o.k. because the size increases on one
> > client. I want to use this new disk space but I recognized that on the
> > new ost the disk space was not used.
> > I looked for
> > recovery_status
> > and there was written INACTIVE.
> > lctl dl
> > on mds shows no new osts.
> > I unmount the new ost but than the fs on the client freezes. Then I mount
> > again and got
> > status: COMPLETE
> > recovered_clients: 13
> >
> > Thats strange because I would expect 14 clients + mdt
> > and indeed
> > lctl dl
> > on one client gives only 10 ost instead of 12
> > the same was on mds.
> >
> > It seems that on one client and on the mds the new osts are not
> > recognized. Can anybody explain what happens, and give me a hint how I
> > can use the new disk space?
> >
> > I use version 1.6.0.1 on servers and version 1.6.1 on clients
> > Thanks in advance
> > Harald

-- 
Harald van Pee

Helmholtz-Institut fuer Strahlen- und Kernphysik der Universitaet Bonn