[Info-vax] VSI strategy for OpenVMS

[Arne Vajhøj]

On 9/14/2021 12:39 AM, Phillip Helbig (undress to reply) wrote:
> In article <shopcl$b49$2 at gioia.aioe.org>, =?UTF-8?Q?Arne_Vajh=c3=b8j?=
> <arne at vajhoej.dk> writes:
> 
>> On 9/13/2021 4:29 PM, Phillip Helbig (undress to reply) wrote:
>>> In article <sho5ts$lt3$1 at dont-email.me>, Dave Froble
>>> <davef at tsoft-inc.com> writes:
>>>> Yes, there are multiple reasons to run a VMS cluster.  But compute
>>>> resources for the most part is no longer one of those reasons.
>>>
>>> There are certainly many big VMS customers who run clusters partly for
>>> increased computing power.  Of course, disaster tolerance, rolling
>>> upgrades, and so on are also reasons.
>>
>> 30 years ago: certainly.
>>
>> Today: not so sure.
>>
>> A single Itanium got lots of power.
> 
> Sure, but what are big VMS customers doing today?

Most likely running the same applications they did 30 years ago.

>> Disaster tolerance can be achieved in different ways.
> 
> But none as good as a VMS cluster.

Businesses are interested in application availability. They
do not care whether that is provided by OS features or
application features.

>>>> I have no information to know what the breakdown is among VMS cluster
>>>> users.  But, I'll pull an Arne and state my factless opinion.  I'm
>>>> thinking that VMS clusters will not be an issue for many VMS users.
>>>
>>> Does "many" mean more than half?  Even if more than half of the users,
>>> perhaps not more than half of the machines.
>>
>> Half??
>>
>> I would be surprised if it was >5%.
> 
> Probably all of use are familiar with some part of the VMS market and
> none of us has an overview.

True.

But cluster pricing/setup/monitoring/programming questions
appears rather rare both here and other places.

Arne