One recommendation is to get rid of the multipath for your SSD. Replica 3 volumes are quite resilient and I'm really surprised it happened to you. For the multipath stuff , you can create something like this: [root@ovirt1 ~]# cat /etc/multipath/conf.d/blacklist.conf blacklist { wwid Crucial_CT256MX100SSD1_14390D52DCF5 } As you are running multipath already , just run the following to get the wwid of your ssd : multipath -v4 | grep 'got wwid of' What were the gluster vol options you were running with ? oVirt is running the volume with 'performance.strict-o-direct' and Direct I/O , so you should not loose any data. Best Regards, Strahil Nikolov В вторник, 13 октомври 2020 г., 16:35:26 Гринуич+3, Jarosław Prokopowski <jprokopowski@gmail.com> написа: Hi Nikolov, Thanks for the very interesting answer :-) I do not use any raid controller. I was hoping glusterfs would take care of fault tolerance but apparently it failed. I have one Samsung 1TB SSD drives in each server for VM storage. I see it is of type "multipath". There is XFS filesystem over standard LVM (not thin). Mount options are: inode64,noatime,nodiratime SELinux was in permissive mode. I must read more about the things you described as have never dived into it. Please let me know if you have any suggestions :-) Thanks a lot! Jarek _______________________________________________ Users mailing list -- users@ovirt.org To unsubscribe send an email to users-leave@ovirt.org Privacy Statement: https://www.ovirt.org/privacy-policy.html oVirt Code of Conduct: https://www.ovirt.org/community/about/community-guidelines/ List Archives: https://lists.ovirt.org/archives/list/users@ovirt.org/message/RBIDHY6P3KKTXF...