I have a 4 node setup (centos 7) with hosted engine on glusterfs (replica 3 
arbiter1). Gluster fs is like this 
ohost01 104G brick (real data)
ohost02 104g brick (real data)
ohost04 104g brick (arbiter) 
ohost05 104g partition used as nfs-storage. 


hosted engine is on gluster.  I also have an fc domain of 3,6 TB 
mount of gluster is like this 

storage=172.16.224.10:/engine
mnt_options=backup-volfile-servers=172.16.224.11:172.16.224.13

172.16.224.10 is ohost01 storage network
172.16.224.12 is ohost02 storage network
172.16.224.13 is ohost04 storage network

Today I upgraded all nodes. I did it like this:
hosted-engine was running on ohost05 at the time
Put ohost04 (arbiter) on maintenance and did upgrade (ok)
Same with ohost02 
Ohost01 was spm so I did ohost05 spm then put ohost01 on maintenance and then 
upgraded it. I notticed that engine VM paused during the process (which usualy 
does not happen) as I have backup-volfile-servers mount option. But today I 
notticed that this option is ignored. On the hosts I also noted that mount is 
like this 
172.16.224.10:/engine on /rhev/data-center/mnt/glusterSD/172.16.224.10:_engine 
type fuse.glusterfs 
(rw,relatime,user_id=0,group_id=0,default_permissions,allow_other,max_read=131072)
so reduduncy is gone from gluster and I cannot figure out why. 
If I restart ohost01 (after maintenance) hosted engine get paused until ohost01 
comes back up.
How can I solve this issue
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