Disabling SCSI parity checking to dump disk on ACB4000 MFM-SCSI adapter?

2020-09-23 Thread Michael Engel via cctalk
Hi, still working on backing up the Tektronix 440x disks. My current problem is that the ACB4000 SCSI-to-MFM adapter doesn´t support SCSI parity. I finally managed to find a PCI SCSI controller (Adaptec 2940) and a Pentium 4 PC with PCI slots and installed OpenBSD 6.7. I disabled parity

Re: Disabling SCSI parity checking to dump disk on ACB4000 MFM-SCSI adapter?

2020-09-23 Thread Grant Taylor via cctalk
On 9/23/20 12:51 PM, Michael Engel via cctech wrote: Do you know if is there another OS which would make it easier to change crucial SCSI parameters in the driver (config) or maybe a specialized tool that could help me to image the disk? Try booting off of a Linux live CD / DVD and seeing if

Re: Disabling SCSI parity checking to dump disk on ACB4000 MFM-SCSI adapter?

2020-09-23 Thread Josh Dersch via cctalk
On Wed, Sep 23, 2020 at 1:28 PM Michael Engel via cctech < cct...@classiccmp.org> wrote: > > > On 9/23/20 8:54 PM, Grant Taylor via cctech wrote: > > On 9/23/20 12:51 PM, Michael Engel via cctech wrote: > >> Do you know if is there another OS which would make it easier to > >> change crucial SCSI

Re: Disabling SCSI parity checking to dump disk on ACB4000 MFM-SCSI adapter?

2020-09-23 Thread Michael Engel via cctalk
On 9/23/20 8:54 PM, Grant Taylor via cctech wrote: On 9/23/20 12:51 PM, Michael Engel via cctech wrote: Do you know if is there another OS which would make it easier to change crucial SCSI parameters in the driver (config) or maybe a specialized tool that could help me to image the disk?

Re: Disabling SCSI parity checking to dump disk on ACB4000 MFM-SCSI adapter?

2020-09-23 Thread Plamen Mihaylov via cctalk
I have the same problem with Torch Triple X disk which uses OMT SCSI/MFM adapter. I believe the best solution is to use David’s MFM emulator board. Best regards, Plamen On Wednesday, September 23, 2020, Michael Engel via cctech < cct...@classiccmp.org> wrote: > > > On 9/23/20 8:54 PM, Grant