[lustre-discuss] Adding network to lnet, without downtime

Ben Evans bevans at cray.com
Tue Oct 4 07:24:08 PDT 2016

Also take the time to read up on LNET routers, it's much simpler from a configuration standpoint to have something bridging your two networks than having it all on the OSSes/MDSes.

-Ben Evans

From: lustre-discuss <lustre-discuss-bounces at lists.lustre.org<mailto:lustre-discuss-bounces at lists.lustre.org>> on behalf of "Dilger, Andreas" <andreas.dilger at intel.com<mailto:andreas.dilger at intel.com>>
Date: Monday, October 3, 2016 at 5:02 PM
To: "Stolarek, Marcin" <marcin.stolarek at delphi.com<mailto:marcin.stolarek at delphi.com>>
Cc: "lustre-discuss at lists.lustre.org<mailto:lustre-discuss at lists.lustre.org>" <lustre-discuss at lists.lustre.org<mailto:lustre-discuss at lists.lustre.org>>
Subject: Re: [lustre-discuss] Adding network to lnet, without downtime

In newer Lustre versions this can be done dynamically with lnetctl. I'm not an expert in that, but hopefully that gets you looking in the right direction.

Cheers, Andreas
Andreas Dilger
Lustre Principal Architect
Intel High Performance Data Division

On 2016/10/03, 06:23, "Stolarek, Marcin" <marcin.stolarek at delphi.com<mailto:marcin.stolarek at delphi.com>> wrote:


Currently my lustre filesystem is confgured to use only o2ib network, I'd like to add possibility of mounting it over tcp.

I can move ost between oss; then on not used oss  rmmod lnet; change parameters; modprobe lnet;  but... I'd prefere to add the network online. (Like writing to /sys filesystem).  Is this possible? Have anyone done this, if yes was it's stable?

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