[Simh] VAX Tape Emulation?

Zane Healy healyzh at avanthar.com
Tue Feb 20 23:51:53 EST 2018


> On Feb 20, 2018, at 8:17 PM, Larry Baker <baker at usgs.gov> wrote:
> 
> You should be able to write an ODS-5 backup save set to an ODS-2 disk image on your SIMH VAX.  It may help you decide whether the cluster I/O or the virtual tape drive is the culprit crashing your VAX.  Make the VAX disk large enough.  Cluster mount it.  Do the backup entirely from the Alpha using MSCP I/O.
> 
> One thing I've never tried is to restore ODS-5 files to an ODS-2 disk.  Does BACKUP give you some options to at least deal with renaming non-ODS-2 file names?
> 
> Larry Baker
> US Geological Survey
> 650-329-5608
> baker at usgs.gov <mailto:baker at usgs.gov>
I’m not sure what will happen if you try restore ODS-5 files to a ODS-2 disk.  That’s something I’ve not tried.

Interesting, it wasn’t just the VAX that I crashed.  I just realized I also crashed the Alpha. 

Zane



-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mailman.trailing-edge.com/pipermail/simh/attachments/20180220/60252717/attachment-0001.html>


More information about the Simh mailing list