So I still have something to learn about DOS and partitioning multiple disks. I'm still going to try to figure out the right way of doing this. I'm also going to dig out some utilities that I had that showed the CHS and other details of the disks especially the virtual ones. In OS/2 WARP 3.0 with XR …

I created 2 x 4GB drives with BlueSCSI, made them targets 1 and 2. They are recognized fine. They have been low-level formatted with SCSIFMT and passed validation to the full 4GB. It says no logical drives though, and the DOS 6.22 FDISK seems lame, or I am missing switches. Will be spending more …

So we can see if perhaps the controller BIOS is the problem... Perhaps you can dump it with debug. First you have to find the location of the BIOS. when you dump with d you quickly will see Adaptec strings. Try to start from c800:0, and increment in 16k steps: cc00:0, d000:0, d400:0 and so on When …

FYI, an alternative to scsi2sd is zuluscsi That's what I may try next. My SCSI2SD was an older version, and with the firmware updated it was unstable. Drives configuration would vanish whenever the SD card was removed. Problem could have been between computer and chair. I think that considering the …

Perhaps you can try whether the limitations just apply to the boot drive - try to connect a second drive then (for testing purpose: first try a 4,5 GB drive, then 9 GB or larger). Probably your WARP driver doesn't have those limitations. Warp 3.0 Connect will recognize the full disk, but is not …

Seems like you need ASPI2DOS.SYS mkarcher and me never have checked controllers like the AHA151x or AHA152x for large disks - like he did with 274x and 284x and ASPI7DOS.SYS I am booting off of the drive, so with ASPI2DOS.SYS and the appropriate DISK.SYS it says that the disk is under BIOS control. …

Disruptor wrote on 2023-07-04, 21:07: What kind of SCSI adapter or chip does it use? Integrated SCSI (Adaptec ASW-B626 - chip Adaptec AIC-6260AL) This is actually the best reference on the built-in chipsets. https://mastodonpc.tripod.com/personal/4253.html

I purchased this Unisys server during the pandemic and trying to push it to its limits. I would blame Halt and Catch Fire. It was small and had a SCSI interface and a 8 UART serial card. When I booted it up, it ran SCO Unixware with two drives that were very, very loud. I was planning on rooting the …