On Nov 29, 2003, at 09:36 pm, Jeff Walther wrote:
Whewww, using the Mac Plus's SCSI port? Probably within a few sigma of forever... Seriously, I think the Plus SCSI operates at something like .75 MB/s and I have no idea what kind of overhead is involved in formatting, but it seems like it would be somewhere in the neighborhood of 3000 seconds theoretical at least, so probably an hour or two. Maybe more.
Well it took about an hour. From what I remember Low Level formatting is not computer dependent, the computer sends the drive a set instruction and the drive does it automatically. It's certainly the case on IDE units and SCSI isn't a mile off of IDE.
Let us know. That's an interesting question. I just bought eight IBM Ultrastar 2ES 2 GB drives with 50 pin interface, so I may need to know the answer my self soon.
Fancy throwing a couple of those across the pond ;-)
It would probably be faster to have an SE or Classic format the drive, if you have one handy. I know that with APS PowerTools, at least, setting the interleave is a user accessible function. Although, I also remember that someone on this group stated that on more modern drives you don't need to set the interleave for the Plus? Anyone remember the details? It had something to do with modern buffering or some such.
According to a well known source of wisdom who's name shall remain disclosed, early drives require 3:1 interleave in order that they work with the somewhat pedestrian SCSI on the Plus, this is due to them having data buffers that are too small to cope with the difference in timing.
Modern drives have much larger buffers and so do not require this to be usable on a Plus. Mine falls into the later category as far as I can tell.
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