[Info-vax] Security, support and VMS, was: Re: A new VMS?

[Arne Vajhøj]

On 5/4/2021 9:29 AM, Dave Froble wrote:
> On 5/4/2021 8:46 AM, Bill Gunshannon wrote:
>> On 5/4/21 8:11 AM, Simon Clubley wrote:
>>> VMS is not Unix or Windows.
>>>
>>> This is good because it has functionality that neither of them have.
>>
>> I was going to let this slide by, but it just stuck in my
>> craw.
>>
>> What "functionality" does VMS have that Unix and Windows don't?
>>
>> Remember, we are talking "functionality", not just doing something
>> in a different manner.
> 
> I "really" should let this slide by, but ...
> 
> It all comes down to ones and zeros, if you want to get that general. 
> However, there are things available in VMS that are at least different, 
> if not unique, compared to other environments.
> 
> Different does matter, if the task is to replace one OS with another. 
> It's not "what could be done", it's "what is", when looking at the 
> differences.

It is expensive to migrate from one environment to another
environment:
* analysis and documentation of what needs to be migrated
* code migration
* operation migration
* test
* extra operational cost from new problems introduced by migration
* cost of lost opportunities from focusing on migration instead of new 
business

That has probably worked in favor for VMS the last two decades.

Arne