[Info-vax] VSI strategy for OpenVMS

[Dave Froble]

On 9/16/2021 2:45 PM, Arne Vajhøj wrote:
> 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.

If it's in the application, who puts it there and maintains it?

If it's in the OS, the required people for maintenance is zero.

> 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
>
>


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David Froble                       Tel: 724-529-0450
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