Large drives continued, and IDE tape drives

[John Klos <john%sixgirls.org@localhost>]

> > At the moment, I get the following:
> > sd1 at scsibus0 target 1 lun 0: <IBM-DTLA, -307075, TXAO> SCSI2 0/direct 
> > fixed
> > sd1: 8063 MB, 16383 cyl, 16 head, 63 sec, 512 bytes/sect x 16514064 sectors
>                 ==========================
> I used the wd-driver and got the same values for these three ones
> but with a final sector count that indicated the real capacity of
> the drive. This was even the same sector count as reported on the
> manufacturer's page.

Ah, yes. With wdc0:
wd1 at wdc0 channel 0 drive 1: <IBM-DTLA-307075>
wd1: drive supports 16-sector pio transfers, lba addressing
wd1: 73308 MB, 16383 cyl, 16 head, 63 sec, 512 bytes/sect x 150136560 sectors
wd1: drive supports PIO mode 4, DMA mode 2, Ultra-DMA mode 5

> I used HDToolbox (on amigaos) to partition the drive. It of
> course found only 8.5G worth of sectors but forcing the number of
> cylinders up to the value of totalsectors/1008 did the trick
> (1008=16*63=sectors/cyl). I was then able to partition the
> full capacity of the drive and initialize the partitions from NetBSD.

Sometimes I forget how flexible AmigaDOS can be - a warning, but it works
perfectly.

Now on to my next question: I am purchasing an OnStream 30 gig IDE tape
drive. Of course the tech support people at the company can't give me any
details on whether it acts just like a SCSI tape drive and accepts the
same commands; they did tell me that it can be used with tar and such
under Linux if one has the 2.4 kernel or patches their older kernel. The
patches are just generic IDE patches; they're not specific to OnStream.

Does this imply that it has a similar enough command set to look like a
SCSI tape drive to the system?

So then, would I use the IDE as scsibus0, or try something like this:
st*     at atapibus? target ? lun ?

while using wcd?

Thanks,
John Klos