With that being said, I'd suggest you engage EMC Support. They should be able to help with better (and documented) troubleshooting than here on ECN.
I don't have any 5.0.x hosts in my lab now, but I plan on standing up some today and seeing if I experience the same issues.
Hi again Jason.
I passed this over to the engineering group again to see if I can find out the oldest build of ESXi that DOESN'T exhibit the connection failure, and I'll get back to you when I hear from them again. In the meantime, I'm gonna echo Jase's recommendation that you open a support ticket with EMC so they can collect diagnostic and configuration info and get to the bottom of what you're seeing.
I experienced this same issue with vSphere 5.0 Update 1. A base install of 5.0 Update 1 behaved similarly (build 623860).
After rebuilding the host and updating it with all the relevant 5.0 patches (now at build 914586), it behaved properly.
With that being said, 5.0 Update 1, plus patches, is probably a more accurate requirement. Just wanted to report back some of what I found.
Update: A fresh install of 5.0 Update 1, followed by an install of the plugin, and then update to 914586, has made vCenter lose connectivity to my host, and some functions from the command line are unavailble (like esxcli). I'd suggest updating to build 914586 before loading the plugin.
It's very random. I am running build 914586 on all 6 of the hosts in the cluster. Just now when I rebooted one of the hosts that was working before it wouldn't boot up and exhibited the same problem.
I think we may have some attention from EMC/Isilon on this issue so maybe something will come of that.
We are still waiting for some help. David Vitera and Eric Sirles were the people we were put in touch with but it sounded like David was the one we needed and was out of office and then busy or something so we haven't actually talked to him yet.
We ended up having to uninstall VAAI for Isilon from all the ESX hosts as it would randomly cause them not to boot. We are still interested in getting it working at some point though.
Installation of the plug-in on ESXi 5.1 and later is working with Isilon version 7.0.x. However... Installation of the plug-in on earlier ESXi versions is NOT working. This has been acknowledged by EMC and VMware support. Recommendation is to upgrade ESXi to 5.1. If you support representitive needs history refer to my closed case 54531450.
found Jase's howto about vaai and smartconnect but never get Hardware Acceration Support about the smartconnect zone name or the IP
vaai works fine if the esxi host (5.1 U1 and 5.1 U2) was connect to a interface IP, try virtual node 184.108.40.206 and 220.127.116.11 too.
is there a hook?
thanks in advance