[lustre-discuss] Can't load module 'osd-zfs'

Yu Chen chenyu at umbc.edu
Fri Jun 24 07:48:20 PDT 2016


I am new to lustre system. Was trying to setup a lustre on Centos 7 with

When came to the step to start lustre.service from systemctl, got the


osd_zfs: disagrees about version of symbol dmu_objset_space

osd_zfs: Unknown symbol dmu_objset_space (err -22)


LustreError: 158-c: Can't load module 'osd-zfs'

LustreError: 48041:0:(genops.c:318:class_newdev()) OBD: unknown type: osd


Here is what I have done:

   - I installed kernel-3.10.0-327.3.1.el7_lustre.x86_64,
   - Then configured and installed zfs from archive.zfsonlinux.org
   - Then downloaded and installed lustre rpms from el7.2.1511 from:
   - Then *zpool* create mdt01-pool /dev/sdb
   - mkfs.lustre --reformat --fsname=lustre01 --mgs --mdt --backfstype=zfs
   --index=0 --mgsnode= at o2ib --servicenode= at o2ib
   - echo "mds1 - lustre01-MDT0000 zfs:mdt01-pool/mgsmdt01" > /etc/ldev.conf
   - echo "options lnet networks=o2ib(ib0)" > /etc/modprobe.d/lustre.conf
   - systemctl start lustre.service

This is where it failed.

Then I think it might be because of the zfs version. So downloaded
lustre-2.8.0-3.10.0_327.3.1.el7_lustre.x86_64.src.rpm, and tried to rebuild
from it. But after rebuilding, there were no lustre-osd-zfs and
lustre-osd-zfs-mount rpms?

Would greatly appreciate any suggestions!

Thanks in advance!

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