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-   -   SCSI Quantum Fireball TM (http://eab.abime.net/showthread.php?t=28190)

jimbo100 23 February 2007 12:44

SCSI Quantum Fireball TM
I have obtained a couple of Quantum Fireball TM SCSI hard disks. They are marked as following;

2.0GB FBTMS 655-0435
Quantum Fireball TM 3.5 Series

One drive is 2100S TM21S03 Rev 03-B S300Z &
the other is 2100S TM21S03 Rev 04-B S300Z

Now I have plugged them into an Amiga A590 (rev 6.6) and Squirrel SCSI device and HDToolbox finds both devices without problems however when I go to read configurations it reads Manufacturers Name, Drive name and drive revision ok but comes up with a "Cannot read device size!"

I have tried with Kickstart 2.04 & 3.1, both have the same result.

I have searched the internet and can't find any info for cylinders, heads, blocks for tracks etc and any info I plug in always comes up with "Error 29 on write!"

What little info I can find is they are 2.1GB drives with a formatted capacity of 2168.8MB with 4,236,019 logical blocks, 4 physical heads and 2 physical disks.

Does anyone have any experience with these drives. Just want to be able to format and use with my Amiga's! :help

Carcenomy 28 February 2007 14:36

Ewww, Fireballs... I've had a few Fireballs (never on an Amiga though :() and they tend to be just as the name suggests - good for a while then spontaneously fly apart...

Zetr0 28 February 2007 15:44

An Amiga + old scsi RLL CHS controller and has a lot of issues with certain
types of Hard disk ide/scsi even if they are CHS compatible!

so here is a little on drive geometry

there are two co-existing types of hard disk geometry the manufactures method of Physcial and the computational of Logical.

You need to convert your PHYSICAL geomertry into a logica geometry (like the one below)

size is calticulated by:- (correct me if i am wrong here)

size = cyl * hds * sect * blks

heres a little more info on calculation and how to translate between physical and logical geometry :)


and some more here


heres a logical geometry for your quantum



Fireball 2.1GB
size        2.1GB

cyl        4029

Hds        16

Sect        63

blks        512

doing the size calculation on it:

size (2,079,350,784) = cyl * hds * sect * blks


Another method that one could employ is to remove the hdd and lump it into the PC and use WinUAE to set it up. of course in this case you would need to have a scsi host (card /device) installed on your PC.

anyways I hope this helps...

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