Those Ultra160/320 drives have to switch down to (Fast) SCSI-2 in order to work with our vintage Macs, for sure...
Besides all Ultra160 (and some Ultra320) drives supporting narrow (8-bit) transfers, some drives need to have that narrow mode enabled or forced via jumpers. IBM's DCHS drives (4.5 GB, 68-pin and SCA versions; quite loud and hot-running
) are among them.
As already mentioned (can't recall the thread, sorry!) I like very much the Seagate-made Compaq/HP BD07285A25 (73 GB, 10Krpm, Ultra-320, SCA; very quiet, moderate power reqs and reasonably cool -- got one of these shoehorned on my LC475!) and they'll work without any jumper tinkering (on the drive) with an adapter like the first one shown in your previous link (the same type I usually use)
On the other hand, got recently a Fujitsu MAN3367MC (36 GB, Ultra-160, SCA; no jumpers) but it refused to work at all with my usual adapters However, a "better" adapter (Siemens branded) with termination resistor packs did the trick, and at 12 EUR it wasn't that expensive either...
In short: those kinds of disks you mention will work down to SCSI-2, but check for jumper settings and/or use a good, terminated adapter -- I presume in order not to leave the unused high byte floating, so the auto switching circuits will be able to work fine.
Besides all Ultra160 (and some Ultra320) drives supporting narrow (8-bit) transfers, some drives need to have that narrow mode enabled or forced via jumpers. IBM's DCHS drives (4.5 GB, 68-pin and SCA versions; quite loud and hot-running
) are among them.As already mentioned (can't recall the thread, sorry!) I like very much the Seagate-made Compaq/HP BD07285A25 (73 GB, 10Krpm, Ultra-320, SCA; very quiet, moderate power reqs and reasonably cool -- got one of these shoehorned on my LC475!) and they'll work without any jumper tinkering (on the drive) with an adapter like the first one shown in your previous link (the same type I usually use)
On the other hand, got recently a Fujitsu MAN3367MC (36 GB, Ultra-160, SCA; no jumpers) but it refused to work at all with my usual adapters
However, a "better" adapter (Siemens branded) with termination resistor packs did the trick, and at 12 EUR it wasn't that expensive either...In short: those kinds of disks you mention will work down to SCSI-2, but check for jumper settings and/or use a good, terminated adapter -- I presume in order not to leave the unused high byte floating, so the auto switching circuits will be able to work fine.