Keeping in mind that the choice of NFS means that you don’t have the POSIX
guarantees provided by Lustre, so simultaneous access to the same files is
dicey unless it’s only reading.
From: lustre-discuss on behalf of
Hi David!
Do you require both systems to be available as native Lustre filesystems on all
clients? Otherwise, reexporting one of the systems via NFS during the migration
phase will keep all data available but decouple the version interdependence
between servers and clients. In this situation,
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.
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 wrote:
> David,
>
>
> I have no direct experience trying