[lustre-discuss] Funny message when mounting ZFS OSTs

[Vicker, Darby (JSC-EG311)]

We updated our 2.9 LFS to zfs 0.7 and lustre 2.10 and we see the same thing when mounting the MDT and OST's on the servers – for both the primary lustre MDT/OST devices and snapshots.  Here is an example with a snapshot.  


[root at hpfs-fsl-mds0 ~]# lctl snapshot_mount -F hpfs-fsl -n hpfs-fsl_AutoSS-Fri

mount.lustre FATAL: unhandled/unloaded fs type 0 'ext3'

mount.lustre FATAL: unhandled/unloaded fs type 0 'ext3'

mount.lustre FATAL: unhandled/unloaded fs type 0 'ext3'

mount.lustre FATAL: unhandled/unloaded fs type 0 'ext3'

mount.lustre FATAL: unhandled/unloaded fs type 0 'ext3'

mount.lustre FATAL: unhandled/unloaded fs type 0 'ext3'

mount.lustre FATAL: unhandled/unloaded fs type 0 'ext3'

mount.lustre FATAL: unhandled/unloaded fs type 0 'ext3'

mount.lustre FATAL: unhandled/unloaded fs type 0 'ext3'

mount.lustre FATAL: unhandled/unloaded fs type 0 'ext3'

mount.lustre FATAL: unhandled/unloaded fs type 0 'ext3'

mount.lustre FATAL: unhandled/unloaded fs type 0 'ext3'

mount.lustre FATAL: unhandled/unloaded fs type 0 'ext3'
mounted the snapshot hpfs-fsl_AutoSS-Fri with fsname 790fd6f


-----Original Message-----
From: lustre-discuss <lustre-discuss-bounces at lists.lustre.org> on behalf of Thomas Roth <t.roth at gsi.de>
Date: Tuesday, August 8, 2017 at 8:40 AM
To: "lustre-discuss at lists.lustre.org" <lustre-discuss at lists.lustre.org>
Subject: [lustre-discuss] Funny message when mounting ZFS OSTs

Hi all,

while installing some servers with ZFS and Lustre 2.10, for the first OSS I created the 
kmod-lustre-osd-zfs with zfs-0.6.5 (I think). The second OSS already got zfs-0.7, so I created new 
Lustre modules. Both went fine.

Of course I was curious about what happens when updating ZFS-beneath-Lustre, so I did that on the 
first OSS. Again everything fine - except that the successful 'mount -t lustre...' ends with a funny 
error message

 >> mount.lustre FATAL: unhandled/unloaded fs type 0 'ext3'

So far I see no problems with these OSTs.

May not be connected to updating zfs, of course.

Cheers,
Thomas

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