Good Morning, That seems to have done the trick. For the benefit of everyone on this list using zfs... The issue I encountered with zfs is described here: https://github.com/zfsonlinux/zfs/issues/2523
To resolve it I had to download the newest zfs 0.6.3, recompile it, then recompile the lustre server rpms. After I recompiled it and installed it on the test system (which had its zpools created, but never mounted) I was able to mount the osts on that system for the first time. I can't quite declare victory just yet, as I still need to perform the process on a system with data. But I'm fairly confident that the data will be safe. w/r, Kurt ----- Original Message ----- From: "Mohr" <[email protected]> To: "Kurt Strosahl" <[email protected]> Cc: [email protected] Sent: Monday, June 8, 2015 4:31:38 PM Subject: Re: [lustre-discuss] upgrading zfs back end file system lustre doesn't mount anymore > On Jun 8, 2015, at 4:18 PM, Kurt Strosahl <[email protected]> wrote: > > I reinstalled the original lustre modules, which were the stock lustre rpms I > downloaded from intel. > > I guess then I lucked out and used the same version of zfs that the the rpms > were compiled against the first time. While I have never tried what you are describing, I am just assuming that changing the ZFS version will require a rebuild of Lustre. The error messages you reported reminded me of similar errors I have seen on a couple of occasions where OFED was upgraded on a system, but Lustre was not rebuilt against the new version. -- Rick Mohr Senior HPC System Administrator National Institute for Computational Sciences http://www.nics.tennessee.edu _______________________________________________ lustre-discuss mailing list [email protected] http://lists.lustre.org/listinfo.cgi/lustre-discuss-lustre.org
