Pretty much in the title.
vCenter was upgraded back in September or so to 5.1, and there are mixed clusters running: 4.0 esx, 5.0 U1, and 5.1.
On the 4.0 ESX hosts, we do not see the CPU/Host Mem or Guest Mem performance stats. They all show "0".
Screen shot attached.
Image may be NSFW.
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We've tried restarting the management services. We've also rebooted the hosts. No luck.
Any suggestions are appreciated.
