[Info-vax] how to extract and install content from vms073lp.zip

[Paul Sture]

On Sun, 01 Apr 2012 17:59:51 +0200, Jan-Erik Soderholm wrote:

> IIRC, they pre-alocates a larger (then the current size needs)
> BITMAP.SYS so that the volume later on can be dynamicaly reseized (made
> larger).
> 
> I think this is mostly used when making a shadowset lerger by replacing
> each disk one-by-one with larger modells. When the last disk is replaced
> the volyme can (menualy or automaticly, don't know) be made larger to
> fill up the new physikal disk.
> 
>  From the 8.4 sysmn manual :
> "Dynamic Volume Expansion (DVE), introduced in OpenVMS Version 7.3-2,"
>

That's how I understand it too.  In the SimH context, I accidentally 
changed the value of RAUSER=n by factor of 10 for an existing disk and 
when I tried to mount it from VMS, unsurprisingly I got a message about 
the bitmap being corrupt.

I've never seen a message about BITMAP.SYS being fragmented before :-)

-- 
Paul Sture