[Info-vax] Marketing ideas for VSI ?

[Phillip Helbig undress to reply]

In article <pv5pvo$p84$1 at dont-email.me>, Dave Froble
<davef at tsoft-inc.com> writes: 

> 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.

That's not the point.  Any Turing machine can emulate another.  The
question is how efficient it is.  Certainly even popular, expensive, and
generally recognized as leading database products are much more
difficult to administer regarding backup, restore, failover, etc than is
Rdb.  Add to that that ROLLBACK in Rdb also rolls back object
definitions (e.g. CREATE TABLE, DROP INDEX), whereas in at least some
other products it can roll back only changes to date (e.g. INSERT,
UPDATE, DELETE). 

> >     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.

I was thinking about batch queues here.

> >     queues which will failover to another node
> >
> >     cluster-alias IP address
> 
> I'd guess that other systems handle networking tasks.

Again, sure they do, but with how much hassle?  How much 
user-friendliness.

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

Probably not.  But is there any equivalent functionality.

> >     something like SYSMAN
> 
> It seems that people do manage non-VMS systems ....

Again, you are missing the point.