We are newbies only having our VMware installation since early May. I noticed that one of our hosts and, subsequently, all the VM's on the host do not show performance data except in real time. VCenter Server happens to be one of the VM's residing on this host. I have read all the threads here about this issue, but have only found one that matches my dilemma. This user suggested that all the VM's be migrated to other hosts, the host be removed from the cluster, the host be placed into maintenance mode, rebooted and moved back into the cluster.
Since I have never had to reboot any hosts, I am very nervous about trying to fix this issue. I would appreciate any advice I can get.