Subj : Amiga 3000 with WarpEngine and internal SCSI bus
To   : Patrik Axelsson
From : Ingo Juergensmann
Date : Sat Aug 12 2017 10:56:28

   Hello Patrik!

10 Aug 17 15:54, you wrote to me:

 PA> This can be solved by using the PFS3 all-in-one filesystem. This
 PA> supports DirectSCSI, TD64 and NSD for partition data located after the
 PA> 4GB and warpdrive.device supports DirectSCSI :).

Good to hear that warpdrive.device is supporting DirectSCSI!

Although this really doesn't solve my "doesn't boot from scsi.device" issue, it
 is a fair workaround that I can use warpdrive.device instead...

 PA> Older HDToolBox works fine for partitioning these large drives as long
 PA> as you remember that it wraps the displayed size every 2GB. It counts
 PA> in cylinders internally, so if you first create small partitions and
 PA> get a feeling for how many cylinders say 100MB are worth, then enter
 PA> the approximate number of "Total Cyl" for whatever size you want the
 PA> partitions to be.

Well, for partitioning you can always use Linux with parted, either on the
Amiga itself (that particular box ran for a decade as a Debian autobuilder) or
just put the disk into another machine like I'm doing it with my SGI Indy...
Once partitioned you can switch the drive back to Amiga and format the new
partitions with PFS3 then.

 PA> I am actually CoSysOp on a BBS where we are running a WarpEngine 3040
 PA> card in an A4000 which has an Acard SCSI->IDE bridge connected to it
 PA> with an IDE->SATA adapter and a 24GB mSATA SSD. Works like a charm
 PA> with PFS3.

Which Acard bridge do you use? Originally I wanted to buy ARS2000SUP until I
came across that other bridge for half the price, but the AEC7720U has the
problem that it is wider than the disk itself on one side so it can only be
placed in one single drive bay: where the floppy disk is.

 PA> http://aminet.net/package/disk/misc/pfs3aio

Will give it a try! Although I didn't make good experiences with non-standard
filesystems on AmigaOS. I lost 400 MB of my filebase back then with AFS. But
maybe PFS3 is more stable now after all the years than AFS was after first
release... :-)

Ingo


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