MOs are much like hard disks, but it can be a little tricky to work out the information to write a suitable MOUNT text file for them that is the right shape and size.
One way around this is to examine a previously setup MO disk with your HD installation software (Faastprep isn't ideal for this and has big limitations on usage, so avoid it unless you have no choice) and see exactly how it is laid out. This might not be necessary, but one key difference is - MO disks are removable. AFAIK SCSI-2 supports hot plug, but not hot unplug, so you might have issues ejecting the media, trying to change from one disk to the next.
IIRC, GVP A2000 cards needed ROM upgrade to handle removable media properly.
If yours has had this done, no problem, but it might not have the newer ROM.
Page has link on it for ROM upgrade if needed, but you will have to get it burned into a chip yourself and plugged into the GVP card.
(Use Mike's link to 4.15 ROM upgrade, that will plug into any GVP Impact Series II without an adaptor).
AmigaOS 2.1 and 3.1 are much easier to work with, as they have CrossDOS included, to read and write PC formatted disks without the user having to worry about stuff. I never met anyone who used 2.1 who did not prefer it to 2.04. 3 does not have CrossDOS, 3.1 and later do have CrossDOs (but I almost never used them, so take that last one as untested). To access PC formatted disks I just put the right crossdos bits into DEVS, and L. Maybe device too, it's been a while, but you don't really NEED a different ROM chip that has it built in. You don't need CrossDOS anyway really, to just use the drives to store Amiga data.
(the x.1 were the developer versions of AmigaDOS that CBM were very, very slow to release to their customers, also 1.4, which eventually was released as WB and KS2.04, which you have). You can do this stuff on a 1.3 Amiga onwards, it just gets easier the later KS and WB you use. 1.2 you could not autoboot, you had to start from a floppy disk, which mounted any and all other drives including hard drives. Or not. 1.2 can do this but it's horriblly slow starting from floppy.
If a SCSI drive has an RDB (rigid disk block) written onto it, the system will automatically pick it up without you needing to mount it. RDB specification is fixed, so works with ALL kinds of Amiga SCSI controllers. A SCSI disk formatted on an Amiga will work with any other SCSI Amiga with a drive that can read the same media. This doesn't happen in PC Land, where all drives have to be setup, partitioned and formatted with the same brand of SCSI controller. Which, oddly enough, can make Amigas better at accessing old PC SCSI drives than older real PCs. Weird. Not usually nowadays, but PC drives and systems from the same era, anyway.
CD-ROMs are the exception here to RDB, as the file system was set outside of Commodore, and the Amiga had to adapt to it. That's why you need a specific filesystem to access CD-ROMs with an Amiga. Much more work with 2.04, a piece of cake with 3.1.
It sounds crazy, having to put a CD filesystem on a CD so an older Amiga can boot from the CD and read the CD Filesystem file needed to access the CD... but there you go. Unless you are designing self booting CD-ROMs for the Amiga, it's not an issue.
:crazy: :python: