If I tell you that they are not, will you think I am just trying to get
the QD21 from you? I need one to replace the Sigma ESDI controller that
failed, and no its format is not the same either.
They also had a choice of hard vs soft sectoring. I believe Emulex and
Dilog handled the RCT differently on the disk too.
Let me know if you are willing to part with the QD21.
cheers,
Nigel
Nigel Johnson, MSc., MIEEE, MCSE VE3ID/G4AJQ/VA3MCU
Amateur Radio, the origin of the open-source concept!
Skype: TILBURY2591
On 2022-09-05 12:51, Jon Elson via cctalk wrote:
On 9/4/22 18:20, Jon Elson via cctalk wrote:
I will be at the VCFMW both days. I am bringing a bunch of stuff to
sell. I have a big box of Q-bus boards from my Micro-VAX II system.
I also have two ESDI disks that have VMS 4.7 on them, and an Emulex
QD21 controller. I'm hoping somebody at the Fest can image the disk
that was last used.
UGH, I must have DREAMT I had the QD21 that I had used before on these
disks. I can't find it now, but I DID find a Dilog DQ696. I don't
know if they use the same sector format.
Jon
