[Lustre-discuss] module dependecies

Eremin, Dmitry dmitry.eremin at intel.com
Thu May 15 08:24:20 PDT 2014

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.

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?


Michael Hebenstreit                 Senior Cluster Architect
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