Hi Hsieh, Thank for your comprehensive reply.
I will make a testbed system and try to upgrade servers directly. Best regards, Nguyen Viet Cuong On Tue, Dec 1, 2020 at 1:01 PM Tung-Han Hsieh <thhs...@twcp1.phys.ntu.edu.tw> wrote: > Dear Nguyen, > > Usually the upgrade procedure is the following: > > 1. Shutdown the Lustre file system completely. > (umount all the clients and servers) > > 2. In all the clients and servers, install the new version of Lustre > software. If your servers are Lustre with ldiskfs backend, please > install the recommand version of e2fsprogs package. > (see https://www.lustre.org/download/) > > 3. In all the servers and clients, unload the Lustre modules by: > > lustre_rmmod > > Or you can reboot these machines instead. > > 4. In each of the servers, run the following command to upgrade: > > tunefs.lustre --writeconf /dev/<device_name> > > Note that you have to do it for all the MGS / MDT / OST. > > 5. When running tunefs.lustre, it may prompt you to turn on some options > of the ldiskfs file system of corresponding device using the e2fsprogs > utilities. Just follow the indications. > > 6. Then the upgrade is completed. You can try to restart the Lustre file > system. > > I used to upgrade from version 2.5.X to 2.10.X and 2.12.X directly. > Everything looks fine to me. > > Cheers, > > T.H.Hsieh > > > On Mon, Nov 30, 2020 at 11:17:03PM +0700, Nguyen Viet Cuong wrote: > > Hi there, > > > > Can anyone advise me the safe way to upgrade Lustre server from 2.5.3 to > > 2.10.x or 2.12.x? I am running 2.5.3 on CentOS 6.5 with a FDR card. I now > > have to upgrade the card to EDR or HDR. > > > > And, is there anyone successfully connecting servers with the mix of EDR > > and HDR200? And how? > > > > Best regards, > > Nguyen Viet Cuong > > > _______________________________________________ > > lustre-discuss mailing list > > lustre-discuss@lists.lustre.org > > http://lists.lustre.org/listinfo.cgi/lustre-discuss-lustre.org > >
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