🚀 go-pugleaf

>If you are looking for an Ultra SCSI 3 drive (Fast 20) then, you'd
>first need a Fast-20 SCSI adaptor (like an Adaptec 2940UW).  Two of
>the best 2 GB Ultra SCSI drives are the Seagate Barracuda 4LP
>(ST32171) and the Quantum Atlas II (XP32181).  Add "W" to the end of
>the vendor part numbers if you need an Ultra Wide drive (40MB/sec).

These numbers that you mentioned (20MB/Sec and 40MB/sec) are not
sustained-throughput rates, I just wondered whether you were aware
of that.  They are probably burst-mode rates, or perhaps they are
the maximum capability of the bus.  Some manufacturers like Seagate
do not like to tell you what their sustained throughput numbers are,
they would rather mention burst-mode numbers because they sound more
impressive.  Micropolis are at least honest enough to tell you what
their real sustained throughput rates are.  Be aware that these 
drives will not be capable of sustained throughput *anywhere near* 
those numbers.  The sustained throughput will probably be somewhere 
between 5MB/sec and 10MB/sec.