[Info-vax] Valid disk types for SIMH?

[Paul Sture]

In article 
<6c6ce596-f298-4141-a95d-64b749027dc8 at p23g2000vbl.googlegroups.com>,
 Galen <gltackett at gmail.com> wrote:

> > ls -l  provides the file size in terms of number of bytes used. Not sure
> > which incantation of ls s needed to get allocated blocks.
> >
> > when you INIT, i believe that by default, it places some of the
> > structures in the middle of the disk.
> >
> > So the container file of say 1 gig would have some structure probably
> > written at the start and its middle, but nothing after. So the file
> > system would think the logical end of file is the highest byte written,
> > hence near the middle of the disk.
> 
> If you have a simh Vax already running VMS you could use it to pre-
> initialize a disk volume (and its underlying Mac OS X disk file) with /
> INDEX=END. That would put INDEXF.SYS at the logical end of the disk,
> forcing OS X to extend the Mac file to the size you specified in your
> simh SET command.

Once you have created one fully populated volume you can also copy it to 
a new one at the host OS level. It's wise to ensure that SIMH isn't 
using it at the time (either detach the associated unit or exit SIMH 
first to be on the safe side).

-- 
Paul Sture