My thoughts exactly. I had a client that was using VMs for both development and 
production. All was AOK until they wrote a custom plugin. While testing the 
plugin on my machine single user all worked great. While testing on virtual. It 
simply did not work. I spent about 4 weeks trying to fix a problem that was 
fixed when we changed the test server to run in a non virtual mode. Voila 
everything worked. Any time VM’s are used for production I would very  leery  
unless the support for the VM is very very experienced in setup, maintenance, 
and fixes.

Regards

Chuck
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> On Feb 27, 2017, at 3:41 PM, Tim Nevels via 4D_Tech <[email protected]> 
> wrote:
> 
> On Feb 27, 2017, at 2:00 PM, Douglas von Roeder wrote:
> 
>> The company underwent an unsuccessful virtualization effort a few years ago
>> (prior to my involvement) when they were using 4D 2004. The IT personnel
>> involved with that effort are not longer with the company and the current
>> staff has assured my client that they will "do it right this time".
>> 
>> I would appreciate your thoughts, insights, and real-world experiences on
>> this topic.
> 
> The line that sent chills down my spine was “they will ‘do it right this 
> time’”. This is a very telling comment. 
> 
> I have death with 3 virtual environments that are running 4D Server 
> applications. 2 were custom designed and installed by a third party vendor. 
> The vendor chose all the equipment, their personnel installed all the 
> hardware and software, they configured everything. They solved all the 
> problems and performance issues with the new setup. These two virtual 
> environments are fast and 4D Server runs great on them. Everyone was happy 
> with the final result. They paid big 5 figures for the VM, but it was worth 
> it. 
> 
> But one environment was built by the in-house “IT guys”. Long story short, 
> performance is not as good. They have periods durning the day when things 
> “just get slow for a while” then they get better. Network problems. Some 
> things work fine. Some things don’t works so fine. The “IT guys” built it, so 
> they have to fix it, and they don’t know what more they can do to make it 
> better. (And heaven forbid they call an “expert” to help out.)
> 
> You can be certain that 4D Server/4D Client runs just fine in a good VM. But 
> a bad VM or a marginal VM can result in poor performance and other problems 
> with 4D. And the “IT guys” will always say “it is just a 4D issue, 4D is crap 
> software that is why it runs bad in our VM”. That will be a false statement. 
> But the “IT guys” built this VM so it is fantastic and can not be made better 
> than how it is now. So you will just have to live with the way 4D runs in the 
> VM. 
> 
> I hope your “IT guys” are atypical and much better than most. 
> 
> Tim
> 
> ********************************************
> Tim Nevels
> Innovative Solutions
> 785-749-3444
> [email protected]
> ********************************************
> 
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