I have 3 host on Vcenter 5.5 Update 1. The first 2 host installed with ESXi 5.5 build update 1a and the last host installed with ESXi 5.5 update 2. The Cluster is has EVC enabled. I need to enable the HA for the cluster I have the error Unable to install HA agent, error cannot upload agent on both host installed with ESXi5.5 update1a but the last host installed with ESXi 5.5 update 2 have no issue .
The first host have 2 VM as SQL Cluster that have share disk.
Then I disable the HA, there was an error stating error unconfiguring the vpshere HA on the host in the cluster. I attached the Event of the error on both enabling and disabling the HA.
I telnet port 902 on all the Host and the port are enabled.
I shutdown the VM and rebooted the host. The configuration issues still remains. Then I disconnect and reconnect the host to the cluster and previously I have enable ssh on the second host, after reboot the error shows The configuration issues still showing error unconfiguring HA Agent with ssh is enabled.
I went to the security services, the ssh is disabled after reboot.
Anyway to resolve this problem? thanks in advance.