Adding SCSI drive to A4000

[Abou27]

Hello everyone,

I am trying to add a 9Gb SCSI drive to my A4000 via a GVP 2000-HC+8 board.  Now, I know that IDE drives use scsi.device and my boot IDE drive is unit 0.  But, can I access the SCSI drive with the normal scsi.device and a new mounlist or do I need a separate eg. gvpscsi.device?  I was trying to copy scsi.device to then rename the copy but can't find it in devs:  Also, I can view mountlists for my cd drive etc but not hardrive so slightly unsure what to copy.  Would I have to change more than the device and unit tags?  Finally, I am familiar with changing id nos on external scsi units but have no idea how to do this on internal ones!  I read somewhere that the unit no should be 6 for a genuine SCSI hd on the Amiga; is this true?

Sorry, for all the questions but I have been going round in circles getting conflicting information from various sources!  Many thanks for any help.



A4000D 3.9  

[Abou27]

Cheers X-Ray. Yeah, I've installed the software.  If I run HDToolbox, it lists gvpscsi.device as well as the normal scsi but there are no drives listed when I click on it.

Is gvpscsi.device likely to default to id 0 and therefore conflict with the normal scsi.device or am I barking up the wrong tree?

[Abou27]

After I click on gvpscsi.device then 'ok', the next screen appears straight away - no evidence of looking for HDs like on normal scsi.device.  The screen is completely blank ie. no headings as well as no devices listed.  The cables seem fine: stripe at power end. I only have a double ended cable so termination may be the problem ie. board and hd, no other connectors.  Presumably putting a terminator on the external socket wouldn't help?

I will go and try the jumpers now.

Cheers.

[Abou27]

Thanks guys.  I have just tried a drive from an A2000 (having put brain in gear and remembering it was there)and it was recognized fine.  I've checked jumpers and it seems that the termination one is missing. So, this must be the problem.  However, it needs midget jumpers, not normal ones so I will have to pay my electronics store a visit tomorrow.

Thanks again for your suggestions :-)




P.S. The problem drive also became pretty hot after being on for a while.  To the point where couldn't hold it for any length of time.  Surely this ain't normal?  Maybe duff drive?

[Abou27]

Hi

It's a Seagate drive and it does run at 7200rpm hence heat, I guess.  The model is st19171n. Link to info page:

http://www.seagate.com/support/disc/scsi/st19171n.html


The jumper pins for termination etc are very short and thin.  Normal jumpers don't seem to fit correctly!  Shop doesn't have any smaller so I suppose I will have to solder a wire across.  I salvaged a small one from an old printer for the term pin but it still ain't working.

Can anyone explain the Term. Power settings shown on the info page?  This is the bit I will have to 'make' a jumper for.  I was aiming for the default setting but don't know whether this is correct.:-)

Thanks for the ideas.