Lustre discuss - Feb 2011 - Running MGS and OSS on the same machine

Hi again,
I have planned to use one server as MGS and OSS simultaneously. But how can
I format the OSTs as lustre FS?
for example, the line below tells the ost which it''s mgsnode is at
192.168.0.10 at tcp0:
mkfs.lustre --fsname lustre --ost --mgsnode=192.168.0.10 at tcp0 /dev/vg00/ost1

But, now mgsnode is the same machine. I tried to put localhost instead the
ip address. but I didn''t work.

What shoud I do?

Arya
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Hi Arya,

if I remember well, Lustre uses 0 at lo for the localhost address. Does 
using the other NID 192.168.0.10 at tcp0 give any error message?


Michael

Am 18.02.2011 16:10, schrieb Arya Mazaheri:
> Hi again,
> I have planned to use one server as MGS and OSS simultaneously. But how
> can I format the OSTs as lustre FS?
> for example, the line below tells the ost which it''s mgsnode is at
> 192.168.0.10 at tcp0:
> mkfs.lustre --fsname lustre --ost --mgsnode=192.168.0.10 at tcp0
/dev/vg00/ost1
>
> But, now mgsnode is the same machine. I tried to put localhost instead
> the ip address. but I didn''t work.
>
> What shoud I do?
>
> Arya
>
>
>
> _______________________________________________
> Lustre-discuss mailing list
> Lustre-discuss at lists.lustre.org
> http://lists.lustre.org/mailman/listinfo/lustre-discuss

-- 
Michael Kluge, M.Sc.

Technische Universit?t Dresden
Center for Information Services and
High Performance Computing (ZIH)
D-01062 Dresden
Germany

Contact:
Willersbau, Room WIL A 208
Phone:  (+49) 351 463-34217
Fax:    (+49) 351 463-37773
e-mail: michael.kluge at tu-dresden.de
WWW:    http://www.tu-dresden.de/zih

Use the same NID as you would in any other case - 192.168.0.10 at tcp0 in your
example.
It will work. You would do the same thing if for example you used one server
for both MGS and MDS, but separate partitions - the MDT would have to be
formatted with --mgsnode
cliffw


On Fri, Feb 18, 2011 at 7:10 AM, Arya Mazaheri <aryanet at gmail.com>
wrote:
> Hi again,
> I have planned to use one server as MGS and OSS simultaneously. But how can
> I format the OSTs as lustre FS?
> for example, the line below tells the ost which it''s mgsnode is at
> 192.168.0.10 at tcp0:
> mkfs.lustre --fsname lustre --ost --mgsnode=192.168.0.10 at
tcp0/dev/vg00/ost1
>
> But, now mgsnode is the same machine. I tried to put localhost instead the
> ip address. but I didn''t work.
>
> What shoud I do?
>
> Arya
>
>
> _______________________________________________
> Lustre-discuss mailing list
> Lustre-discuss at lists.lustre.org
> http://lists.lustre.org/mailman/listinfo/lustre-discuss
>
>
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Arya,

I have the MGS, the MDT and the OST all on the same machine and everything works
fine. It should not be a problem to have the MGS and the OST on the same
machine.

Are your MGS and MDT mounted when you execute mkfs.lustre for the OST?

Denis

Denis Charland, ing. | P. Eng.
Administrateur de Syst?mes UNIX | UNIX Systems Administrator
T?l. | tel. (450) 641-5078     Fax (450) 641-5106
Courriel | E-mail : denis.charland at cnrc-nrc.gc.ca<mailto:denis.charland at
cnrc-nrc.gc.ca>

Institut des mat?riaux industriels | Industrial Materials Institute
Conseil national de recherches Canada | National Research Council Canada
75, de Mortagne, Boucherville, Qu?bec, Canada, J4B 6Y4
Gouvernement du Canada | Government of Canada


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Yep, I have fixed it with this command instead:
mkfs.lustre --fsname lustre --ost --mgsnode=0 at lo /dev/sdb1

2011/2/18 Charland, Denis <Denis.Charland at imi.cnrc-nrc.gc.ca>
> Arya,
>
>
>
> I have the MGS, the MDT and the OST all on the same machine and everything
> works fine. It should not be a problem to have the MGS and the OST on the
> same machine.
>
>
>
> Are your MGS and MDT mounted when you execute mkfs.lustre for the OST?
>
>
>
> Denis
>
>
>
> *Denis Charland, ing. **| P. Eng.***
>
> Administrateur de Syst?mes UNIX | UNIX Systems Administrator
>
> T?l. | tel. (450) 641-5078     Fax (450) 641-5106
>
> Courriel | E-mail : denis.charland at cnrc-nrc.gc.ca
>
>
>
> Institut des mat?riaux industriels | Industrial Materials Institute
>
> Conseil national de recherches Canada | National Research Council Canada
>
> 75, de Mortagne, Boucherville, Qu?bec, Canada, J4B 6Y4
>
> Gouvernement du Canada | Government of Canada
>
>
>
>
>
> _______________________________________________
> Lustre-discuss mailing list
> Lustre-discuss at lists.lustre.org
> http://lists.lustre.org/mailman/listinfo/lustre-discuss
>
>
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Thanks Michael
It worked with 0 at lo.

thanks again for your suggestion...

On Fri, Feb 18, 2011 at 6:55 PM, Michael Kluge
<Michael.Kluge at tu-dresden.de>wrote:
> Hi Arya,
>
> if I remember well, Lustre uses 0 at lo for the localhost address. Does
> using the other NID 192.168.0.10 at tcp0 give any error message?
>
>
> Michael
>
> Am 18.02.2011 16:10, schrieb Arya Mazaheri:
> > Hi again,
> > I have planned to use one server as MGS and OSS simultaneously. But
how
> > can I format the OSTs as lustre FS?
> > for example, the line below tells the ost which it''s mgsnode
is at
> > 192.168.0.10 at tcp0:
> > mkfs.lustre --fsname lustre --ost --mgsnode=192.168.0.10 at
tcp0/dev/vg00/ost1
> >
> > But, now mgsnode is the same machine. I tried to put localhost instead
> > the ip address. but I didn''t work.
> >
> > What shoud I do?
> >
> > Arya
> >
> >
> >
> > _______________________________________________
> > Lustre-discuss mailing list
> > Lustre-discuss at lists.lustre.org
> > http://lists.lustre.org/mailman/listinfo/lustre-discuss
>
>
> --
> Michael Kluge, M.Sc.
>
> Technische Universit?t Dresden
> Center for Information Services and
> High Performance Computing (ZIH)
> D-01062 Dresden
> Germany
>
> Contact:
> Willersbau, Room WIL A 208
> Phone:  (+49) 351 463-34217
> Fax:    (+49) 351 463-37773
> e-mail: michael.kluge at tu-dresden.de
> WWW:    http://www.tu-dresden.de/zih
> _______________________________________________
> Lustre-discuss mailing list
> Lustre-discuss at lists.lustre.org
> http://lists.lustre.org/mailman/listinfo/lustre-discuss
>
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