SCSI and IDE?

[Justin]

greetings one and all,

can i use SCSI and IDE at the same time on a A4K?

cheers, JuvUK

 

[AndyLandy]

Can't see any reason why not. Should work just fine!

 

[Zetr0]

Yes, you can,

And I will talk you though setting up AmiCDFS too =D

although you would get a faster bndwidth via - SCSI as that will DMA straight to 24bit ram on the GVP - but you can always wait untill said SCSI CDROM pops up =D

In the package comming your way is 2 IDE Optical drives =D

 

[Justin]

cool, so i could run a small SCSI hd with the os on it, and chuck all my other stuff on a monster IDE hd?

 

[Zetr0]

most certainly can sir!


you can have upto 7 devices on the SCSI chain =D

(includes Optical Drives/ Harddisks / DAT drives / Networks & Scanners)

 

[Justin]

and can i use one of these http://cgi.ebay.co.uk/SCSI-SCA-80-P...uting_CablesConnectors_RL?hash=item2a022d759a
to use an 80pin scsi HD?

 

[Kin Hell]

One thing Juzzer. IDE will load the CPU whenever you are accessing the hard drive. With SCSI, there is no CPU load so ideally, you should be trashing the IDE all together.

Kin

 

[Justin]

i agree m8, but untill i'm flush again, i'm just thinking of temp measures, if that adaptor i linked to will work then i will be able to ditch the ide hd straight away

 

[AndyLandy]

and can i use one of these http://cgi.ebay.co.uk/SCSI-SCA-80-P...uting_CablesConnectors_RL?hash=item2a022d759a
to use an 80pin scsi HD?

Looks like it. I might have to get me one of those. I've got quite a collection of SCA SCSI disk drives. Still, it might be a squeeze to wedge a HD and adapter on to a hard card (There's nowhere else in the A2000 to put the hard disk, sadly)

 

[Justin]

so if this does work with a miggy i'm good to go as a big 80pin scsi hard drive is as cheap as chips

 

[Zetr0]

@JuvUK

I have the same adapters here I use for the A2000 and PC, work perfectly fine -

You are however limmited in disk size by the controller - the GVP controller (Not equipped with a guru rom) can only physically see upto 4GB of space.

Pending on the geometry of the drive it might not see much more than 2GB - however - you can have up to 7 disks so not all is lost LOL

instead of buying of thos 80-50 adapters, I would suggest that SCSI to IDE adapter

I have an A500+ with a GVPHC+ (8MB) SCSI controller using one of these adapters - using a 20GB IDE HDD - (geek moment upcomming) its running in UDMA mode over 24Bit SCSI DMA... mmmm feels good =D

Alas the controller can ONLY see 3.1GB of the device

 

[Justin]

yo bud,
4gb will be plenty enough for me, after all know all i'm going to do is play Superfrog and Wing Commander

 

[rkauer]

I have a 18Gb SCSI HD & a SCSI CD-ROM on my GVP HC+8 with 3.15 (latest no-Babel ROM). But I'm using OS3.9 in mentioned beast with 3.1 ROM.

I have to mention my boot device is an ancient 512Mb IDE drive hooked in a GVP 2000 030 SCSI RAM (4Mb). Then move the control to SCSI and redo all the assigns, dismount IDE controller, reboots from SCSI and then binddriver the IDE again for a more user-friendly use.

Too much convoluted? You didn't see nothing yet! :twisted:

 

[Zetr0]

@rkauer

have you got the full 18GB?

 

[rkauer]

Of course!

 

[Zetr0]

@rkauer

please... you must tell me how you managed to get the device to see all of the harddisk


alas my 3.15 equipped A500HC+ (HC8+) cannot see past 3.1GB on a 20GB HDD

 

[rkauer]

Oops! Forgot a little detail: I'm using Babel's Binddriver GURU ROM image!

The process is the one described above:

I'm using an ancient 512Mb IDE drive hooked to my GVP 030+SCSI+RAM to boot rightly on 3.1 (not much at all). In the Startup-sequence I'll binddriver the GVP SCSI controller, dismount the IDE controller, then using a GVP command to pass the control of OS to the big and faster SCSI drive and then reboot in 3.9 mode (that is made automatically by 3.9 itself).

Later in 3.9 mode I can (if I wish) re-mount the IDE controller on the GVP card using a special binddriver driver to hook any IDE device I want in that crappy IDE (already tested with a DVD drive!).

I don't know if you can do this a single-controller Amiga.