[Info-vax] Marketing ideas for VSI ?

[Dave Froble]

On 12/16/2018 3:55 AM, Phillip Helbig (undress to reply) wrote:
> In article <mailman.3.1544908232.23319.info-vax_rbnsn.com at rbnsn.com>,
> Kerry Main <kemain.nospam at gmail.com> writes:
>
>> OpenVMS Clustering is simply a high end and solid implementation of a shared
>> disk (everything) cluster. Other implementations of this same shared disk
>> cluster strategy are z/OS and Linux/GFS2.
>
> Do these other systems have other things which I consider essential to
> clusters?

Do keep in mind that other environments have seemed to exist for some 
time now, and get people's jobs done.

>     generic and specific queues

I'd guess there are methods for printing.  Don't know about batch, or, 
other purposes VMS's queue manager can be used for.

>     queues which will failover to another node
>
>     cluster-alias IP address

I'd guess that other systems handle networking tasks.

>     cluster-wide logical names

Does any other system have logical names?  Not that I know.  But, I 
don't get out much.

>     something like SYSMAN

It seems that people do manage non-VMS systems ....

>     something like shared SYSUAF etc

Steve will shove LDAP under your nose, should you fail to recognize it 
yourself.

>     a database which can be open on all nodes---no failover, no standby,
>     no switching, just continuation of processing on the remaining nodes

It appears that this can be a feature of the database, rather than the OS.

>     something like the distributed lock manager which applications can
>     use

The DLM is a very useful tool.  But it is not unique, and implementing 
such is a bit less than "rocket science", which itself is no longer so 
esoteric.

> Arguably, all of these (all of which have been in VMS for a long time)
> are essential for a "proper" cluster.
>

Got to be careful, as "proper" is very much open to opinion.

-- 
David Froble                       Tel: 724-529-0450
Dave Froble Enterprises, Inc.      E-Mail: davef at tsoft-inc.com
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