[Info-vax] VSI strategy for OpenVMS

[Arne Vajhøj]

On 9/15/2021 1:00 AM, Phillip Helbig (undress to reply) wrote:
> In article <shr7f4$tnu$1 at gioia.aioe.org>, =?UTF-8?Q?Arne_Vajh=c3=b8j?=
> <arne at vajhoej.dk> writes:
>>>> Businesses are interested in application availability. They
>>>> do not care whether that is provided by OS features or
>>>> application features.
>>>
>>> They should care if they have to hire twice as many people to implement
>>> the non-VMS solution.
>>
>> But why should they need to hire more people??
>>
>> Let us take Rdb vs Oracle DB aka Classic with RAC (real RAC
>> not RAC One). Both use a DLM but Rdb use VMS DLM while Oracle DB
>> RAC use its own DLM.
>>
>> Does it matter for developers or operations? Not really.
> 
> Have you ever worked anywhere where one tried to emulate the
> functionality of VMS with regard to clustering, availability, and so on
> with non-VMS hardware and software?

It was a very specific example where the same functionality is provided
by either DLM in the application or in the OS.

I don't see why it would require more people to manage when
it is in the application.

And the fact that I have neither managed a Rdb cluster nor an
Oracle RAC cluster does not matter at all for that argument.

Arne