[Simh] Making tape/disk images

[Larry Baker]

Michael,

Which PDP-11 O/S?  Will it have DECnet access to another system (e.g.,  
a SIMH VAX or linux-decnet)?

OpenVMS system can create and mount a Files-11 Level 1 disk volume,  
which can be read/written by RSX-11M/M-Plus and IAS.  You could create  
a virtual Files-11 Level 1 volume with a SIMH VAX and then read it on  
a SIMH PDP-11.  The same SIMH VAX can create a SIMH virtual ANSI- 
labelled tape, which can be read/written by those O/S's, and RSTS, I  
assume (I have never used RSTS).  RT-11 disk volumes and DOS-11 tape  
volumes can be created with the OpenVMS EXCHANGE utility.  Any of  
these can be to virtual devices that can be cross-mounted on various  
SIMH machines, as long as the O/S supports the volume format.

Of course, any systems that are DECnet'ed together can exchange  
files.  I use linux-decnet on a CentOS (Red Hat) file server to store  
OpenVMS Backup save sets that are created using remote file access  
(FAL) directly from the Backup command.  linux-decnet may not be  
available for very much longer -- the people that supported the DECnet  
code in the Linux kernel can no longer keep up with the latest  
versions of the kernel.

Larry Baker
US Geological Survey
650-329-5608
baker at usgs.gov

On Apr 29, 2010, at 9:00 AM, simh-request at trailing-edge.com wrote:

> Message: 2
> Date: Thu, 29 Apr 2010 14:54:50 +0800
> From: Michael Richter <ttmrichter at gmail.com>
> Subject: [Simh] Making tape/disk images
> To: simh <simh at trailing-edge.com>
> Message-ID:
> 	<o2mee970b291004282354xbfdea62dwe8e2b8389f27a5b3 at mail.gmail.com>
> Content-Type: text/plain; charset="utf-8"
>
> Is there an easy way to take a bunch of files and turn them into  
> either a
> tape image or a disk image suited for attaching to a PDP-11 under  
> SIMH?

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