[Simh] trouble with idle detection on VAX

[Michael Unger]

On 2007-06-12 15:42, "Villy Madsen" wrote:

> [...]
> 
> I am still finding that there is still something strange going on
> when mounting VAX disks (running under XP).  What I think is
> happening is that Windoze is sometimes mapping the entire disk
> into memory (a la Noncontiguous Shared Segment <G> anyone
> recognize that term).  When that happens, windows reads every
> byte on the virtual disk before VMS can mount it...
> 
> That could be the source of the slow boot-up of VMS (if you are
> running under windows)

There *might* be a simple explanation for this: What is an entire *disk*
for VMS is a *single* file for Windows, and perhaps it just tries to
"cache" this file -- which usually doesn't fit into RAM so the page file
is accessed as well.

> [...]

Is there any possibility to open these "container files" _uncached_?

Michael