Ah, yes, that will likely be a tricky one. You may simply have to bite the bullet, copy what you can early, and accept a downtime to finalize.
Note also that there may be no kernel version for which you could compile both of those? Possibly some version of CentOS 6. ________________________________ From: David Cohen <cda...@physics.technion.ac.il> Sent: Sunday, December 31, 2017 2:50:05 AM To: Patrick Farrell Cc: lustre-discuss@lists.lustre.org Subject: Re: [lustre-discuss] Lustre Client in a container Patrick, Thanks for you response. I looking for a way to migrate from 1.8.9 system to 2.10.2, stable enough to run the several weeks or more that it might take. David On Sun, Dec 31, 2017 at 12:12 AM, Patrick Farrell <p...@cray.com<mailto:p...@cray.com>> wrote: David, I have no direct experience trying this, but I would imagine not - Lustre is a kernel module (actually a set of kernel modules), so unless the container tech you're using allows loading multiple different versions of *kernel modules*, this is likely impossible. My limited understanding of container tech on Linux suggests that this would be impossible, containers allow userspace separation but there is only one kernel/set of modules/drivers. I don't know of any way to run multiple client versions on the same node. The other question is *why* do you want to run multiple client versions on one node...? Clients are usually interoperable across a pretty generous set of server versions. - Patrick ________________________________ From: lustre-discuss <lustre-discuss-boun...@lists.lustre.org<mailto:lustre-discuss-boun...@lists.lustre.org>> on behalf of David Cohen <cda...@physics.technion.ac.il<mailto:cda...@physics.technion.ac.il>> Sent: Saturday, December 30, 2017 11:45:15 AM To: lustre-discuss@lists.lustre.org<mailto:lustre-discuss@lists.lustre.org> Subject: [lustre-discuss] Lustre Client in a container Hi, Is it possible to run Lustre client in a container? The goal is to run two different client version on the same node, can it be done? David
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