[Simh] VAX Tape Emulation?

[Larry Baker]

As far as I am aware, there is no limit, up to the amount of disk space available.  Backup Save Sets are just RMS sequential files with fixed record lengths (on disk, usually 32768 bytes, on tape, I think the default is 4096, except 2048 for Interchange format).

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



> On 25 Jan 2018, at 6:04:01 PM, Zane Healy <healyzh at avanthar.com> wrote:
> 
> 
>> On Jan 25, 2018, at 1:39 PM, Larry Baker <baker at usgs.gov <mailto:baker at usgs.gov>> wrote:
>> 
>> I agree completely.  DECnet is your friend.  On VMS, it works right out of the box.  I have never had a need to try rmt.  As I mentioned in an earlier email, I have built a DECnet FAL-to-NFS gateway using DECnet-Linux.  It works great for storing Backup Save Sets on an NFS file server.  Once there, they can be compressed with gzip to save space for long-term archive.
>> 
>> Larry Baker
>> US Geological Survey
>> 650-329-5608
>> baker at usgs.gov <mailto:baker at usgs.gov>
> How large of a saveset can you create doing this?  This might work for another use case I’m aware of.
> 
> Zane
> 
> 

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