Since oVirt 4.4 , the stage that deploys the oVirt node/host is adding an lvm filter in /etc/lvm/lvm.conf which is the reason behind that. Best Regards, Strahil Nikolov В петък, 25 септември 2020 г., 20:52:13 Гринуич+3, Staniforth, Paul <p.staniforth@leedsbeckett.ac.uk> написа: Thanks,              the gluster volume is just a test and the main reason was to test the upgrade of a node with gluster bricks. I don't know why lvm doesn\t work which is what oVirt is using. Regards,                Paul S. ________________________________ From: Strahil Nikolov <hunter86_bg@yahoo.com> Sent: 25 September 2020 18:28 To: Users <users@ovirt.org>; Staniforth, Paul <P.Staniforth@leedsbeckett.ac.uk> Subject: Re: [ovirt-users] Node 4.4.1 gluster bricks   Caution External Mail: Do not click any links or open any attachments unless you trust the sender and know that the content is safe.

1 node I wiped it clean and the other I left the 3 gluster brick drives untouch.

If the last node from the original is untouched you can: 1. Go to the old host and use 'gluster volume remove-brick <VOL> replica 1 wiped_host:/path/to-brick untouched_bricks_host:/path/to-brick force' 2. Remove the 2 nodes that you have kicked away: gluster peer detach node2 gluster peer detach node3 3. Reinstall the wiped node and install gluster there 4. Create the filesystem on the brick: mkfs.xfs -i size=512 /dev/mapper/brick_block_device 5. Mount the Gluster (you can copy the fstab entry from the working node and adapt it) Here is an example: /dev/data/data1 /gluster_bricks/data1 xfs inode64,noatime,nodiratime,inode64,nouuid,context="system_u:object_r:glusterd_brick_t:s0" 0 0 6. Create the selinux label via 'semanage fcontext -a -t glusterd_brick_t "/gluster_bricks/data1(/.*)?"' (remove only the single quotes) and run 'restorecon -RFvv /gluster_bricks/data1' 7. Mount the FS and create a dir inside the mount point 8. Extend the gluster volume: 'gluster volume add-brick <VOL> replica 2 new_host:/gluster_bricks/<dir>/<subdir> 9. Run a full heal gluster volume heal <VOL> full 10. Repeat again and remember to never wipe 2 nodes at a time :) Good luck and take a look at Quick Start Guide - Gluster Docs Best Regards, Strahil Nikolov To view the terms under which this email is distributed, please go to:- http://leedsbeckett.ac.uk/disclaimer/email/