[Info-vax] VMS internals design, was: Re: BASIC and AST routines

[Phillip Helbig undress to reply]

In article <j0ac3aFojqmU1 at mid.individual.net>, Bill Gunshannon
<bill.gunshannon at gmail.com> writes: 

> On 11/25/21 2:20 PM, Arne VajhÞj wrote:
> > 
> > Those running VMS today are mostly those without an easy way off
> > VMS.
> 
> I would really like to know what people could be running on
> VMS on an Itanic that would be so difficult to move to a
> totally different system.  Any applications are almost
> guaranteed to be written in an HLL.  Just what is it that
> they are doing on VMS that can not be done on another
> system?

Rdb.  Sure, if you use standard SQL, you could port it to another 
database without much trouble.  But there is also RMU for things such as 
backups and unloads.  Yes, can be done in another way.  Any Turing 
machine can emulate another.  :-)  But those who have worked with Rdb, 
especially those who can compare it with other databases, know how good 
it is.

Clustering.  Real clustering.

The two together.  The database is open on all nodes in the cluster, 
processes running on all nodes.  It works.  Lose a node?  Reconnect to a 
generic interface and continue.

Good documentation.

Built-in file versions.

EDT.  :-)