Could you please send log files of StarWind and vmkernel logs on the date of issue to sup at starwindsoftware dot com?

Could you please doublecheck all the settings, especially CHAP?

That is correct, you can use one of two - Automount or CHAP. That is caused by the CHAP technology that is used to increase security.

Actually you need to use Automount, and everything will work as you wanted to.

Greetings

What logs are saying, is that *.img file is busy by another process. Are you sure that you trying to use propper file?

Have you checked in "Automount" checkbox?
Is StarPort running under Administrator account?

Could you please restore the bug with third level of StarWind logs?
To switch to 3 level logging go to starwind.cfg file and change <LogLevel value="1"/> to <LogLevel value="3">

Could you please doublecheck your Xen settings? Also could you please send StarWind Logs on the date of issue to support at starwindsoftware dot com or to upload them somewhere?

Also:
1)Check firewalls
2)Check the license on the second server
3)Doublecheck your CHAP and ACL settings

1. Sure you can. Then bigger cache then bigger performance.
2. *.img that you will create for HA should have same size.

Great! We'll wait for your updates.
You'll be informed about start o 5.7 beta-testing. We are expecting it in the middle of April.

Great!

We`ll wait for your update.

I know that you are using Mirror - it was in topic;)
Yes, the problem is the same as regarding to HA issue, so the topic, that I`ve suggested you will be useful.

Thank you for the log.
It seems to be related to the Xen issue with HA, that we faced recently, Citrix has confirmed it from their side too.
Now we are working on the documentation about the solution, and you can use the information from this topic from StarWind forum for now.

OK, we`ll wait for the logs.

You`re very welcome. Please keep us updated.