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 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 it will behave > > any different > Not really, unfortunately. The error messages are a bit cryptic: > > [ 1069.277571] (scsi8:A:0:0): Sending SDTR period 45, offset 0 > [ 1069.278961] scsi 8:0:0:0: Attempting to queue a TARGET RESET message > [ 1069.278964] CDB: 0x12 0x0 0x0 0x0 0x24 0x0 > [ 1069.278975] scsi 8:0:0:0: Command not found > [ 1069.278979] aic7xxx_dev_reset returns 0x2002 > [ 1069.279286] (scsi8:A:0:0): Sending SDTR period 45, offset 0 > [ 1069.280736] scsi8: Slave Alloc 1 > [ 1069.543400] scsi target8:0:1: asynchronous > [ 1069.543416] scsi8: target 1 using asynchronous transfers > [ 1069.543420] scsi8: Selection Timeout on A:1. 0 SCBs aborted > > It seems that the problem lies in the firmware of the ACB4000, which > doesn´t seem to support some standard commands, e.g. the INQUIRY > command. Most recent Linux SCSI drivers seem to use this command. > Earlier versions of SunOS and Solaris know how to deal with Adaptec SCSI bridges properly; I've done so on SunOS 4.1.4, for example. I'd still suggest using something like this: https://www.pdp8.net/mfm/mfm.shtml to image the MFM disks themselves. A friend of mine is in the middle of assembling a run of them... - Josh
