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Re: DSSI Disks



Den 2026-05-04 kl. 08:55, skrev Johnny Billquist:
On 2026-05-04 03:06, Andrew Ball wrote:
   ASB> set rq3 rf35
      > attach rq3 disk3.img

   PK> You can do that, but it's not required (unless you're creating a
     > new container in which case the name implies the size). My point
     > was that attaching an existing image file should default the
     > type, though of course you can then override it if you want.

     Interesting!  I had no idea that was optional.  That might explain
why simh3 didn't seem to understand what I was trying to do. Perhaps
it's an open-simh 4 thing.

Yes. You don't have to say anything about type. It's used by simh to have a size for creating the new disk. And that's close to all simh uses it for. It might present different names in MSCP also, but as we've been discussing now, this is somewhat broken in simh.

And yes, v3 of simh are just knows even a little less about types. Which is why you were getting those errors.
May note here as well that some third-party cards might present the disk type as just anything. For example; an Emulex MSCP-emulating SCSI card I had always presented the disks as RA81, independent of size and type.

-- R


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