[lustre-discuss] upgrading zfs back end file system lustre doesn't mount anymore

[Mohr Jr, Richard Frank (Rick Mohr)]

> On Jun 8, 2015, at 3:41 PM, Kurt Strosahl <strosahl at jlab.org> wrote:
<snip>                        
> 
> osd_zfs: disagrees about version of symbol sa_bulk_update                                           
> osd_zfs: Unknown symbol sa_bulk_update                                                              
> osd_zfs: disagrees about version of symbol dmu_tx_hold_free                                         
> osd_zfs: Unknown symbol dmu_tx_hold_free                                                            
> LustreError: 158-c: Can't load module 'osd-zfs'                                                     
> LustreError: 5581:0:(genops.c:304:class_newdev()) OBD: unknown type: osd-zfs                        
> LustreError: 5581:0:(obd_config.c:374:class_attach()) Cannot create device lustre2-OST0009-osd of type osd-zfs : -19
> LustreError: 5581:0:(obd_mount.c:195:lustre_start_simple()) lustre2-OST0009-osd attach error -19                    
> LustreError: 5581:0:(obd_mount_server.c:1689:server_fill_super()) Unable to start osd on lustre-ost9/ost9: -19      
> LustreError: 5581:0:(obd_mount.c:1325:lustre_fill_super()) Unable to mount  (-19)
> 
> So I tried reinstalling all the lustre rpms (including the kernel) but it still gives the above message.

Did you just reinstall your original Lustre version, or did you also rebuild it against the new ZFS version?

--
Rick Mohr
Senior HPC System Administrator
National Institute for Computational Sciences
http://www.nics.tennessee.edu