I'm doing an internship on VMware. We have 2 ESXi hosts, that both have mounted NFS storage on a RHEL 6.4 NFS server.
This NFS server's firewall is on and blocks everything except NFS. When my hosts are up and running, I have no issues.
The problem is that every time one of the hosts reboots (maintenance, HA fail over,..), the NFS storage becomes inactive on that machine.
When I then turn off the firewall on the NFS server, the mount becomes available again on the ESXi host. When it's available, I can turn the NFS server's firewall back on.
Is there any way I can prevent/solve this problem?
Thanks in advance!