Hello Paride & all, sorry for the late reply but I was on vacation last week. I found a solution/workaround now but it's a little bit strange.
Background: Oracle is offering different shapes of virtual machines. In the OCFS2 cluster we are using: VM.Standard.E4.Flex (AMD) VM.Standard3.Flex (Intel) These machines use different virtual NICs too. I did upgrades to kernel Ubuntu-oracle-5.13.0.1018.22~20.04.1 (and some other packages). After these upgrades the problem was gone in our testing cluster, where both VMs run on VM.Standard.E4.Flex (AMD). In the (planned) production cluster, which runs on mixed VMs (VM.Standard.E4.Flex / VM.Standard3.Flex) the problem was still present. So I changed the shape from the 2nd VM from Intel to AMD - same as in testing environment - and the problem was gone too. In summary: Upgrade to Ubuntu-oracle-5.13.0.1018 solves the problem, but only when all cluster machines have same VM shape (and/or possibly same type of NIC). For the case that the machines run on different VM shapes (and NICs?) the problem remains the same. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1959581 Title: OCFS2 intermittently not mountable on a second Node in Ubuntu 20.04.3 LTS To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ocfs2-tools/+bug/1959581/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs