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

[Kurt Strosahl]

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.

w/r,
Kurt

----- Original Message -----
From: "Mohr" <rmohr at utk.edu>
To: "Kurt Strosahl" <strosahl at jlab.org>
Cc: lustre-discuss at lists.lustre.org
Sent: Monday, June 8, 2015 4:13:39 PM
Subject: Re: [lustre-discuss] upgrading zfs back end file system lustre doesn't	mount anymore

> 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