RE: Speeddos for 8050/8250/SFD-1001/8296D

From: Hoffmann-Vetter, Martin <>
Date: Sun, 16 Mar 2014 01:06:25 +0100
Message-ID: <003601cf40ab$a7689cf0$1b09a8c0@mhvnb10>
Hi Olaf,

> So what does Speeddos for IEEE-488 drives do? Not speed up the data
> transfer, I presume?

You are not right, speeddos speed the load time by 40% and the save time by
20%. If you read from a drive, speeddos don't wait for the real speed of the
drives. It begin to read when the drives speed up.

> That leaves the faster head stepping speed

No, that's not changed, because this parameter is defined by the drive
manufactor. But the micropolis drives need four steps for one track. So
speeddos try to read near a track if the real track isn't readable.

> and possibly changed interleave?

Yes, there are many changes for a faster access.

The directory isn't limit at the directory track. So you can have more
directoty entries!

> One thing that would be useful is a better disk copy, one that
> optionally continues on errors, and/or is better at copying
> non-standard disks (as far as they were ever used on those drives).

The whole disk duplication is now faster.

For more infos, look at the manual (sorry i know only a german version at


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Received on 2014-03-16 01:00:03

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