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Amiga computer related discussion => Amiga Hardware Issues and discussion => Topic started by: utri007 on December 15, 2014, 07:27:49 PM

Title: Help to choose SCSI hard drive
Post by: utri007 on December 15, 2014, 07:27:49 PM

I have a change buy 2 of these http://www.hgst.com/tech/techlib.nsf/products/Ultrastar_18ES

It is a IBM Ultrastar 18ES hard drive

I have 3 SCSI controllers, but only one has a proper HD

CDTV SCSI-TV
http://amiga.resource.cx/exp/scsitv
GVP Impact A500 HD8+ Series II
http://amiga.resource.cx/exp/impact500mk2
IVS Trumpcard Professional 2000
http://amiga.resource.cx/exp/trumpcardpro2000

Last one has currently 4gb HP hard drive connected.

Those are 68pin scsi drives, so I would need a adapter, but would I need a terminator?

Title: Re: Help to choose SCSI hard drive
Post by: danbeaver on December 15, 2014, 09:01:35 PM

Although you might get away without using a terminator on a SCSI-1/2 controller, in my experience I would always terminate a wide drive (16-bit) even if only the lower 8 bits are used; just look for a "wide active terminator."  Remember that those upper 8-bit lines on the drive are hanging free without anything.

Title: Re: Help to choose SCSI hard drive
Post by: Tenacious on December 15, 2014, 09:16:21 PM

I've been running a SCSI-TV with an A570/Supra500RX/A500 since the early 90s.  It still has the original 100MB HD with OS2.1.  That drive has AmiFileSafe, a forerunner of PFS3.

The GVP may require a ROM update to access larger HDs.

I would always follow standard SCSI terminating practices regardless of 50 or 68 pin HDs.