RL02-USB Controller Status/Problem

Johnny Billquist bqt at update.uu.se
Tue Apr 7 13:26:17 CDT 2015

On 2015-04-07 19:21, Pete Turnbull wrote:
> On 07/04/2015 16:56, Johnny Billquist wrote:
>> On 2015-04-07 15:14, Pete Turnbull wrote:
>>> Actually COPY/DEV under RT-11 is commonly used, especially for non-RT-11
>>> packs.  I can't remember what RSX does, but RT-11 /does/ deal with the
>>> bad block table, by not copying the last track, and copying remapped
>>> blocks.
>> But that don't make sense. You cannot just move one block somewhere else
>> because it is bad on the target device. Or just ignore a block because
>> it is bad on the source device.
> Nevertheless, what I wrote is what RT-11 COPY does.
>> And "remapped" must be something very local to RT-11. RSX do not remap
>> any blocks. A block that is bad, is bad. It is still there.
> Well, yes, it's still bad, and still there, but all the RT-11 utilities
> use the substitute block.

So COPY/DEV is essentially only usable for opying RT-11 disks on RT-11 
systems. :-)
Nothing wrong with that, mind you.


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