[Lustre-discuss] Bug when using /dev/cciss/c0d2 as mdt/ost

[rishi pathak]

In this setup there are 15 OSS each having 840GB targets and one MDS with
840GB mdt. All nodes are HP DL580G5 servers. These servers come with HP
Smart Array P400.Raid volumes are visible as /dev/cciss/[c0d0,c0d1].
Creation of back end fs used to fail giving errors

mkfs.lustre FATAL: failed to write local files
mkfs.lustre: exiting with 12 (Cannot allocate memory)

. A search on lustre-dicuss showed that this was a bug in ldisk module. See
the below link for more clarification:
http://www.mail-archive.com/lustre-discuss@lists.lustre.org/msg01713.html

The solution was to fix the code and rebuild it against the pre-patched
lustre-kernel source. I hope I have made myself clear :)

On Wed, Dec 24, 2008 at 9:59 PM, Brian J. Murrell <Brian.Murrell at sun.com>wrote:

> On Wed, 2008-12-24 at 11:02 +0530, rishi pathak wrote:
> > I am trying to build lustre-1.6.6 against the pre-patched kernel
> > downloaded from SUN.
>
> Can I ask, just out of curiosity, why you are trying to build and don't
> just use the provided RPMs?
>
> > But as written in Operations manual, it creates rpms for
> > 2.6.18-92.1.10.el5_lustrecustom. Is there a way to ask it not to
> > append custom as extraversion.
>
> If I understand your problem correctly, you can edit the Makefile in the
> kernel source and remove the "custom" from the EXTRAVERSION.

I tried that but it seems like it is hard coded in each and every
autoMakefile & Makefile.
I accepted defeat because of deadline and rebuild kernel and lustre again.
Setup is over IB and is working fine (yet to benchmark it though).

>
>
> b.
>
>
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-- 
Regards--
Rishi Pathak
National PARAM Supercomputing Facility
Center for Development of Advanced Computing(C-DAC)
Pune University Campus,Ganesh Khind Road
Pune-Maharastra
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