[Lustre-discuss] module dependecies

Keith Mannthey keith.mannthey at intel.com
Thu May 15 08:24:26 PDT 2014


Michael, 
  LNET configuration is done at module load time. I don't see any way
you will you not have to bring down parts of the FS to adjust the system
at this level. 

There is some Dynamics Lnet Config work on its way that might allow such
a switch but not in todays code. 

Thanks,
 Keith 


On Thu, 2014-05-15 at 15:13 +0000, Hebenstreit, Michael wrote:
> Please do not ask why, but I need to be able to replace the IB stack
> (as in – all InfiniBand modules) at runtime with a Lustre FS mounted.
> Is there a possibility to tell lnet to completely switch to tcp,
> unload ko2iblnd.ko and next unload the IB stack, load the new IB
> stack, load a matching ko2iblnd.ko and then switch lnet back to
> preferring o2ib?
> 
>  
> 
> Thanks
> 
> Michael
> 
>  
> 
> ------------------------------------------------------------------------
> Michael Hebenstreit                 Senior Cluster Architect
> Intel Corporation, MS: RR1-105/H14  Software and Services Group/DCE
> 
> 4100 Sara Road                      Tel.:   +1 505-794-3144 
> 
> Rio Rancho, NM 87124
> 
> UNITED STATES                       E-mail:
> michael.hebenstreit at intel.com
> 
>  
> 
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