[Lustre-discuss] module dependecies

[Eremin, Dmitry]

It’s not possible I suppose. LNet module read configuration only once during the module load stage. Therefore you cannot reconfigure it without unloading. So, you need to stop Lustre anyway.

Dmitry.
From: Hebenstreit, Michael
Sent: Thursday, May 15, 2014 7:14 PM
To: lustre-discuss at lists.lustre.org
Cc: Eremin, Dmitry; Lind, Bobbie J; Jones, Peter A; Dilger, Andreas
Subject: module dependecies

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

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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<mailto:michael.hebenstreit at intel.com>


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