Thanks, Andreas, Tested. Working. Happy. My cluster users thank you for saving us from an outage.
Cheers! Scott ________________________________ From: Andreas Dilger <[email protected]> Sent: Tuesday, 28 May 2019 2:28 PM To: Scott Wood Cc: [email protected] Subject: Re: [lustre-discuss] lfs migrate of hard links You may be able to just copy the lfs_migrate script from a 2.12.x client, I don't think it has any dependencies on kernel or lfs features in the 2.12 release. I would of course recommend that you test it is working properly on some test hard-linked files before running it on the whole filesystem. On May 27, 2019, at 19:02, Scott Wood <[email protected]> wrote: > > Hi folks, > > I am in the process of draining a dozen OSTs in a 2.10.3 environment (all > servers and clients) for replacement and it turns out they have many files > with multiple hard links to them. We can't leave these files behind, as we > need to replace the OSTs, but we can't let them " be split into multiple > separate files" by lfs_migrate as that would break things. > > From my reading of the changelogs and the new lfs_migrate script, it seems > that these are now handled more elegantly. If I were to upgrade the lustre > client to 2.12.1 on a dozen clients, would the new client side lfs_migrate in > 2.12.1 work with 2.10.3 servers, or will I need a system wide outage to > upgrade all clients and servers? > > Cheers! > Scott Cheers, Andreas -- Andreas Dilger Principal Lustre Architect Whamcloud
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