>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
