Amiga.org

Amiga computer related discussion => Amiga Hardware Issues and discussion => Topic started by: RMK305 on July 29, 2008, 07:06:33 PM

Title: How many drives in A4000D?
Post by: RMK305 on July 29, 2008, 07:06:33 PM
I'm using a 4.3 gig ide drive and am about to set it up from scratch again so that it has a  sysyem parttition of aboutt 300 meg and a games partition of 2 or 3 gig with the remainder as something else.

I'm wondering how many drives I can fit in the A4000D case. I have 1 hard drive, floppy and CD ROM. I don't have the manual so I have can't see what Commodore said at the time. I could be interested to add another drive, especially as I have a SCSI connecctor on the Warp Engine which will be much faster than the ide - Was thinking it would be good for video storage.

Thanks,

Robert
Title: Re: How many drives in A4000D?
Post by: doctorq on July 29, 2008, 07:13:54 PM
If I were you I would just ditch the 4 GB IDE drive, and get myself a 18+ GB SCSI harddrive for the WarpEngine controller instead.

As for how many drives you can have in there; as many as room allows. You will need to consider heat though.
Title: Re: How many drives in A4000D?
Post by: amigadave on July 29, 2008, 07:15:43 PM
If I were in your shoes, I would dump the 4.3gb IDE drive into another computer and get a fast SCSI-2 drive to connect to your WarpEngine accelerator.  It is so much faster than the hd controller on the A4000 motherboard.  I have also heard of people that have removed all RAM except the CHIP RAM on their A4000D's so that the only FAST RAM was installed on the WarpEngine.  This would make your system faster as well, but in my opinion, removing the mobo RAM is not really necessary as the WarpEngine will use the RAM on the accelerator card first and then the slower A4000 RAM only when you need more RAM than you have installed on the WarpEngine.

I am no expert and these are all just things I have read from others.
Title: Re: How many drives in A4000D?
Post by: zipper on July 29, 2008, 07:44:39 PM
As long as I had the original case, 2 HDs, 2 floppies + 1 CD-Rom. After towerizing  now I have 4 or 5 HDs, CD-Rom  and lots of free room - 2 Zorro GFX cards + 1 PCI, leaving 4 free Zorro and 3 free PCI slots...
Title: Re: How many drives in A4000D?
Post by: Darrin on July 29, 2008, 08:53:38 PM
I've just finished setting my A4000D up as I want her.  My best advice is to ignore that internal IDE connecter and get a Zorro based IDE adapter.

I got an Elbox FastATA4000 adapter from Amigakit (but they also sell the Bhudda which should be just as good - I have one of them too, but mine has died).

So far I've got 2 x 80GB 3.5" hard drives installed in the hard drive cradle.  Only one is hooked up at the moment and the FastATA broke it down into 18 x 4GB drives.  I have 2 of them "bootable" and back my main boot partition up to the other just incase I need to restore it, plus I've relabled the other drives according to my needs (games, untilities, ADFs, etc).

I've also connected a DVD ROM to the FastATA and installed it in the empty 5.25" bay (tight squeeze).

I've got a single High Density floppy drive attached to the mobo header and space for a 2nd.

I bought some round IDE cables as there is not much room inside the case (A2000D wins hands down for interal expension space as usual).

I've got a 68040 processor card fitted.

I've got the Debian USB board fitted with 2 ports on the back plane and a long cable attached to the internal port and running out the back slots for easy access.

I've got an internal scan doubler/flicker fixer installed.

16MB RAM on the motherboard.

8MB RAM on a Zorro card.

PS2 Mouse and Keyboard adapters.

Now all I need is a USB Ethernet adapter (I bought a Trendnet TU2-ET100, but I haven't tried hooking it up yet).

I hope that I can make some large partitions on the 2nd 80GB drive by using SFS instead of FFS, but I haven't got around to that yet.
Title: Re: How many drives in A4000D?
Post by: Darrin on July 29, 2008, 08:57:51 PM
You can always make extra mounts for hard drives by cutting up bits of plastic, jamming them in unused Zorro slots and screwing the drives to the plastic.  It might not look pretty, but with the cover on then who will know.   :lol:
Title: Re: How many drives in A4000D?
Post by: InTheSand on July 30, 2008, 11:16:00 AM
Quote

Darrin wrote:
My best advice is to ignore that internal IDE connecter and get a Zorro based IDE adapter.


I'm surprised! I was under the impression that the IDE connector on the Buddha was just as slow as the A4000/A1200's internal connector. But I'm willing to be corrected!

I have the combined Buddha / Catweasel combo in my A3000 and it seems OK when using an recent-ish (in Amiga terms!) 10Gb IBM IDE drive. My boot drive is an ancient 1.2Gb-ish SCSI from about 1973 (kidding!) and it's pretty slow. But I was under the impression that the A3K's internal SCSI would beat any classic-Amiga-based IDE connection provided the drive was up to the job.

 - Ali
Title: Re: How many drives in A4000D?
Post by: actung_bab on July 30, 2008, 12:01:41 PM
thanks for that advice just reading what you said
l have a amiga 4000 d mb and am in the process of building to complete working machine.
need psu and cpu card has taken me ages to get all the parts
l can only afford standred commodore 040 card is this okay.
am going get psu adaptor from amigakit as the case l brought was just shell with no power switch.
l have always had amiga 1200s so looking at my parts made amiga 4000 is bit guess work thats for sure in that l dont know what missing seems its got most the brackets not many though. i did in finish get a daughter board .
living in new zealand been bit hassle getting parts
l dont really want buy standred psu as age of the part and weight mean it cost more. but finding a pc atx psu that fits into the case is this going be problem ?
if anyone esle has any advice on this project whould be great
l used to get friend to help me with electronics but hes far to busy with his biz these days hence dont want buy old psu which chould break down. and has no plans to how they work.

many thanks
ps is the usb card cool its on my wish list gee also when think u lost intrest in the amiga they bring out some cool gear that new scan doubler that hooks on to amiga mb sounds cool esp 24 bit modes on standred pc monitor.
just pity they seem drip feed them over long time
just well the classic range has still some life left ,and the talk about the psx2 having long time line :-)
gee miss my ppc card should not have sold it damm twit hehe

come on amiga inc let someone do something u like school boy holding his lolly bag in case some esle gets them gezz
only trouble is u making yourselves as popular as certain leader on african country not naming names l might get in trouble hehe


 :-D  :crazy:
Title: Re: How many drives in A4000D?
Post by: Darrin on July 30, 2008, 06:45:30 PM
Quote

InTheSand wrote:
I'm surprised! I was under the impression that the IDE connector on the Buddha was just as slow as the A4000/A1200's internal connector. But I'm willing to be corrected!
 - Ali


The internal A4000 IDE connector is pants.  To quote the AHD:

Quote
The built in IDE controller supports two IDE devices connected simultaneously. Unlike the A1200 the A4000 has a buffered IDE port. Only mode PIO 0 is supported.


whereas:
Quote
Fast EIDE controller
supports PIO0, PIO3 and PIO4 devices
meets the ATA 3 and Fast ATA 2 specifications
up to 16.6 MB/s transfer speed
two 40 pin IDE headers (primary and secondary)
the primary and secondary buses can be accessed at different speeds
up to four IDE or ATAPI devices can be connected at once
hard disk activity LED connector
unconventional handling of >4 GB devices, they are simply split into separate logical 4 GB blocks - can be turned off by software for filesystems implementing NSD, TD64 and Direct SCSI commands
multiple FastATAs are supported


Quote
IDE controller
uses polled I/O, not DMA transfer
two buffered IDE ports support up to four IDE devices
each port is compatible with IDE splitters allowing up to a maximum of eight drives
autoboot ROM
two LED port activity connectors - one for drives 0 to 3, the other for drives 4 to 7
software configurable IDE timing - even PIO mode 0 devices are compatible
raw transfer speed is limited by the Zorro II bus to 3.58 MB/s
supports hard disks larger than 4 GB
can mount GVP or AT-Apollo formatted hard disks
supported by Linux


Sysinfo certain reported a huge increase in speed with the FastATA over the internal IDE header.

For example, if I set the FastATA to PIO 0 as used by the internal header I get a speed value of 1,191,563 bytes per sec.

But, when I use the FastATA in PIO 4 mode it jumps to 6,553,600 bytes per sec.

PIO 3 = 3,276,800 bytes per sec

Tests on a Western Digital EIDE WD800 3.5" drive.
Title: Re: How many drives in A4000D?
Post by: doctorq on July 30, 2008, 07:20:55 PM
@Darrin

FastATA will naturally be faster than the onboard IDE as it's Z3, and isn't build like the other IDE controllers released.

Comparing it to the onboard IDE controller or any Zorro II based controller doesn't show the correct picture. It will be like comparing the FastATA to the CSPPC SCSI controller.

There is no speed gain on a Buddha compared to the onboard IDE controller. If any speed increase, it's only minimal.
Title: Re: How many drives in A4000D?
Post by: Darrin on July 30, 2008, 07:33:44 PM
Quote

doctorq wrote:
@Darrin

FastATA will naturally be faster than the onboard IDE as it's Z3, and isn't build like the other IDE controllers released.


Which certainly backs up my claim to forget about the IDE connector on the mobo.

Quote
There is no speed gain on a Buddha compared to the onboard IDE controller. If any speed increase, it's only minimal.


So you're saying that the Buddha running in PIO4 mode will not be any better than the A4000 IDE in PIO0?  I can't test it because my Buddha is RIP (shows up as OK in early startup, but reports connected drives as "garbage" under HD Toolbox) but I did use it in an A2000 and A3000 and there was a marked difference between PIO0 and PIO3 or PIO4 modes on the same drive (granted they were across the Zorro 2 ports, but obviously PIO3 & 4 give a better data transfer rate than PIO0 and if the Z2 port was the bottleneck then we wouldn't see a difference).

Edit:  I assume Jens is talking about Zorro 2 here:

Quote
High speed: Even with slow harddisks like the Quantum Bigfoot, transfer rates of more than 2.2 MBytes per second can be reached. The raw data transfer rate is only limited by the zorro bus: 3.58 MBytes per second.
Title: Re: How many drives in A4000D?
Post by: doctorq on July 30, 2008, 10:15:49 PM
Quote

Which certainly backs up my claim to forget about the IDE connector on the mobo.


Not really, as you are comparing a FastATA, which isn't the same as the IDE controller on the motherboard (or Buddha for that matter).

Quote

So you're saying that the Buddha running in PIO4 mode will not be any better than the A4000 IDE in PIO0?


No, I'm not. I'm saying you will have no speed increase in using a Buddha compared to the onboard IDE controller of the Amiga 4000 motherboard. You are setting a FastATA equal to a Buddha which is wrong.
Title: Re: How many drives in A4000D?
Post by: hardlink on July 30, 2008, 10:24:45 PM
Quote

Darrin wrote:
You can always make extra mounts for hard drives by cutting up bits of plastic, jamming them in unused Zorro slots and screwing the drives to the plastic.  It might not look pretty, but with the cover on then who will know.   :lol:


Just beware of the heat generated and the power used. CBM used a crappy PS that doesn't move much air or have much reserve power.
Title: Re: How many drives in A4000D?
Post by: Darrin on July 30, 2008, 10:35:04 PM
Quote

doctorq wrote:
No, I'm not. I'm saying you will have no speed increase in using a Buddha compared to the onboard IDE controller of the Amiga 4000 motherboard. You are setting a FastATA equal to a Buddha which is wrong.


Ah, with you.  Yes, the FastATA is faster than the Buddha (and costs more too), but what I was trying to say (badly) was that using a Buddha is better than using the internal IDE on the A4000.

One handy feature of the Buddha is the 2.5" header so you can use 2.5" and 3.5" drives directly without hunting down an extra adapter.
Title: Re: How many drives in A4000D?
Post by: doctorq on July 30, 2008, 10:44:46 PM
Quote

what I was trying to say (badly) was that using a Buddha is better than using the internal IDE on the A4000.


And why is that? The only advantage with using a Buddha on an A4000 is that the ports are easier to access, and you get two channels instead of one (not a big deal if you only have a harddrive and a CD drive). Speedwise they are more or less equal.
Title: Re: How many drives in A4000D?
Post by: Darrin on July 30, 2008, 11:18:19 PM
Quote

doctorq wrote:

And why is that? The only advantage with using a Buddha on an A4000 is that the ports are easier to access, and you get two channels instead of one (not a big deal if you only have a harddrive and a CD drive). Speedwise they are more or less equal.


Speedwise, I'm sure that the Buddha in PIO4 mode is going to outstrip that internal header in PIO0 mode by a factor of 2.  Plus it can take 6 IDE devices, has an A1200 clockport expansion port and comes with some nice CD ROM setup software which avoids having to use IDEFix.
Title: Re: How many drives in A4000D?
Post by: Darrin on July 30, 2008, 11:21:29 PM
Quote

hardlink wrote:

Just beware of the heat generated and the power used. CBM used a crappy PS that doesn't move much air or have much reserve power.


Hmmm... I've been kind of worried about that.  Now that I've filled my Zorro slots up and packed in the extra drives, there's bugger all space left inside the case.

I haven't put the lid back on yet, but considering what you say, I'm tempted to drill a lot of holes into the 2nd floppy drive blanking plate and perhaps mount an extractor fan on the inside and blow that hot air out of the front.
Title: Re: How many drives in A4000D?
Post by: doctorq on July 31, 2008, 12:10:16 PM
Quote

Speedwise, I'm sure that the Buddha in PIO4 mode is going to outstrip that internal header in PIO0 mode by a factor of 2.  Plus it can take 6 IDE devices, has an A1200 clockport expansion port and comes with some nice CD ROM setup software which avoids having to use IDEFix.


AFAIK the Buddha can't do PIO4, PIO0 only, and you can only have 4 devices attached, not 6. The clockport is a bonus, I'll give you that.

As for the software, well, it's more or less the same as any other CD software around.
Title: Re: How many drives in A4000D?
Post by: davideo on July 31, 2008, 01:37:38 PM
I've been reading this thread with interest and awe  :crazy:

I've got a Buddha that I'll be sticking into my 4000D shortly so that I can add an internal backup hardrive. I've currently got a hardrive and CD connected to the original internal IDE connector.

I thought I'd read that the Buddha wouldn't auto boot  :rtfm:  or is this only the original version? (which is the one I've got).

Dave G  8-)
Title: Re: How many drives in A4000D?
Post by: PaSha on July 31, 2008, 02:29:52 PM
If you have a SCSI-controller on your Warp Engine, it should have DMA (direct memory access) which means disk access uses little or no CPU power (and with a decent not-too-old drive you'll get close to 10 MB/s speeds).

FastATA, and any IDE controller, use quite a bit of CPU during disc access.
So with SCSI (with DMA, there are non-DMA scsi controllers around too), you not only get faster disk access but also a generally faster system because of the extra CPU power freed by not using IDE.
Title: Re: How many drives in A4000D?
Post by: Darrin on July 31, 2008, 03:04:44 PM
Quote

doctorq wrote:
AFAIK the Buddha can't do PIO4, PIO0 only, and you can only have 4 devices attached, not 6. The clockport is a bonus, I'll give you that.


I bet it can.  The Buddha pref let you set what PIO mode you want to use for each channel.  I remember setting it to high for an old IDEZ drive and couldn't get it to boot until I used the prefs to crank it down (The PIO settings are stored on the Buddha so that it knows in what ode to operate).  You could also see the speed difference if you used SysInfo - and I'm talking A3000 and A2000 here.

You're right, it's not 6 - it's 8 devices (you can use IDE splitters on 2 headers to attach 4 drives to each header giving a total of 8 devices (try finding space for them!)  ;-)

Quote
As for the software, well, it's more or less the same as any other CD software around.


Well it's nice to have it all rolled into 1 handy install CD instead of rummaging around on Aminet for unlicensed untilities, some of which need registering to get rid of annoying screens.  There's also a couple of handy untilities on the Buddha disk.
Title: Re: How many drives in A4000D?
Post by: Darrin on July 31, 2008, 03:09:58 PM
Quote

davideo wrote:
I've been reading this thread with interest and awe  :crazy:

I've got a Buddha that I'll be sticking into my 4000D shortly so that I can add an internal backup hardrive. I've currently got a hardrive and CD connected to the original internal IDE connector.

I thought I'd read that the Buddha wouldn't auto boot  :rtfm:  or is this only the original version? (which is the one I've got).

Dave G  8-)


The one I had was the Buddha Gold (which used gold plated connectors) and it certainly did autoboot on the A2000 and A3000.  IIRC the old one didn't have the A1200 clock port.
Title: Re: How many drives in A4000D?
Post by: RMK305 on July 31, 2008, 07:38:00 PM
Thanks for the replies. Afetr a quick check on amiga resource http://amiga.resource.cx/exp/warpengine it appears that the SCSI has DMA.

Now, where to get a 50 pin 20Gb SCSI hard drive? I checked ebay but they  all seem too be 68 pin or higher. Anyone got a spare the would sell?

Thanks,

Robert
Title: Re: How many drives in A4000D?
Post by: PaSha on August 01, 2008, 11:53:42 AM
There are 68-50 pin SCSI adapters that you can use with a 68-pin drive.
Should work straight out of the box (did for me), but you may need to move some jumpers on the drive ('force SE' or 'LVD/SE').
Title: Re: How many drives in A4000D?
Post by: darksun9210 on August 01, 2008, 01:52:48 PM
ok, from my understanding, the PIO mode settings you set on the buddah card is how fast the card talks to the drive, and has nothing to do with how fast the card talks to the amiga. you are limited to the zorro2 limits of 2-3MB/s

for those interested, here are the numbers.
PIO mode 0 - cycle time 600ns - Max Xfer 3.3MB/s
PIO mode 1 - cycle time 383ns - Max Xfer 5.2MB/s
PIO mode 2 - cycle time 240ns - Max Xfer 8.3MB/s
PIO mode 3 - cycle time 180ns - Max Xfer 11.1MB/s
PIO mode 4 - cycle time 120ns - MAX Xfer 16.7Mb/s

so PIO mode 0 with a decent drive, will max out zorro2, and the amiga's onboard IDE. the best i've personally seen on the built in IDE port is 2.9MB/s.

sure, a Zorro3 fastATA card will push bigger numbers, but you need a big (060?) CPU to get anywhere near PIO mode 4's maximum speed. this is why DMA is good, and PIO is pants in comparison. PIO, will serve you well if its all you got.

for those who like a bit of data sadomasacisum (however you spell it), you can put a 4 way IDE adadapter on the internal port and run two hard disks, a DVD rom, and a Zip drive off of it at the same time, if you like. such a setup served me well untill i could afford to get an accelerator with scsi.

so for the best of both worlds, cheap IDE drives, and SCSI performance/lack of CPU usage, i'd get an IDE2SCSI adapter or two. vesalia.de have them in stock. they work on both IDE hard drives, and IDE CD/DVD drives.

as for the most amount of drives in an A4000D case, thats 2 internal 3.5" half height drives, 2 external 3.5" half height drives, and one external 5.25" drive.

hope this helps.  :-)
Title: Re: How many drives in A4000D?
Post by: A4000_Mad on August 01, 2008, 02:29:13 PM
Quote

darksun9210 wrote:

you can put a 4 way IDE adadapter on the internal port and run two hard disks, a DVD rom, and a Zip drive off of it at the same time, if you like.


Yeah that's what I've done. Also got an Oktagon SCSI card with a SCSI hard drive and an external Iomega 2GB Jaz drive on it. Recently added an old Tandem device to a Zorro slot and put an IDE > Compact Flash card reader in too :-)
Title: Re: How many drives in A4000D?
Post by: Darrin on August 01, 2008, 03:02:56 PM
Quote

darksun9210 wrote:

for those interested, here are the numbers.
PIO mode 0 - cycle time 600ns - Max Xfer 3.3MB/s
PIO mode 1 - cycle time 383ns - Max Xfer 5.2MB/s
PIO mode 2 - cycle time 240ns - Max Xfer 8.3MB/s
PIO mode 3 - cycle time 180ns - Max Xfer 11.1MB/s
PIO mode 4 - cycle time 120ns - MAX Xfer 16.7Mb/s

hope this helps.  :-)


Thanks for those numbers.

What confuses me is why the same drive in PIO mode 0 manages a lousey 1.1MB/s, but does over 6MB/s in mode 4.  If mode 0 allows 3.3MB/s and I've achieved over 6MB/s over the Zorro 3 bus in mode 4 then surely I should be getting better than 1.1M/s in PIO mode 0?

Task for today:  Connect the same drive to te internal header and check speed, then reconnect to the FastATA in mode 0 and check speed.  I'll be back...    :-D
Title: Re: How many drives in A4000D?
Post by: doctorq on August 01, 2008, 03:44:38 PM
Quote

Task for today:  Connect the same drive to te internal header and check speed, then reconnect to the FastATA in mode 0 and check speed.  I'll be back...    :-D


Then you are still putting a FastATA equal to a Buddha card, and it's still wrong. The FastATA will be much faster than the Buddha and it will be much faster than the onboard IDE controller.

As told earlier, the FastATA is Z3, Buddha is Z2, and the Buddha and onboard IDE controller are equal speedwise.
Title: Re: How many drives in A4000D?
Post by: Darrin on August 01, 2008, 03:54:06 PM
Quote

doctorq wrote:
Then you are still putting a FastATA equal to a Buddha card, and it's still wrong. The FastATA will be much faster than the Buddha and it will be much faster than the onboard IDE controller.

As told earlier, the FastATA is Z3, Buddha is Z2, and the Buddha and onboard IDE controller are equal speedwise.


Nah, the point of this test is to check the speed difference of the A4000 mobo IDE in mode 0 against the FastATA in mode 0.

I agree the Zorro3 FastATA is faster than the Zorro2 Buddha.  This is just to see exactly how crappy (or not) the internal IDE header is on the A4000.
Title: Re: How many drives in A4000D?
Post by: doctorq on August 01, 2008, 08:35:49 PM
@Darrin

Please specify if you are talking about the Buddha or the FastATA (as I think it is) in the following

Quote

I bet it can. The Buddha pref let you set what PIO mode you want to use for each channel. I remember setting it to high for an old IDEZ drive and couldn't get it to boot until I used the prefs to crank it down (The PIO settings are stored on the Buddha so that it knows in what ode to operate).
Title: Re: How many drives in A4000D?
Post by: Darrin on August 01, 2008, 08:38:57 PM
Quote

doctorq wrote:
@Darrin

Please specify if you are talking about the Buddha or the FastATA (as I think it is) in the following

Quote

I bet it can. The Buddha pref let you set what PIO mode you want to use for each channel. I remember setting it to high for an old IDEZ drive and couldn't get it to boot until I used the prefs to crank it down (The PIO settings are stored on the Buddha so that it knows in what ode to operate).


The Buddha.  It also allowed the changing of PIO modes via the Buddha preferences and that also made a speed difference (when I was using it in my A2000 and A3000).
Title: Re: How many drives in A4000D?
Post by: doctorq on August 01, 2008, 08:41:14 PM
And is this software available for download somewhere? I'll have to take a look and test it myself to believe the things posted here.
Title: Re: How many drives in A4000D?
Post by: yogisumo on August 01, 2008, 09:02:01 PM
Best bet is take the a4000 and mount it in a different case with an at or atx power supply using a power supply converter adapter.  I think AmigaKit has a psu adapter if you don't want to make one yourself.  Then you can have many drives ... ;)
Title: Re: How many drives in A4000D?
Post by: Darrin on August 01, 2008, 10:20:21 PM
Doh!  OK, forget EVERYTHING I said!  Jesus, I'm going senile!!!  I was describing the preferences for my Power Flyer Gold in my A1200T!!!

Sorry!!!  I'm an idiot!  OK, who has got a hat that they want me to eat.

 :crazy:

This is a definate sign that I have too many Amiga models.
Title: Re: How many drives in A4000D?
Post by: Darrin on August 01, 2008, 10:37:02 PM
Anyway, back to reality and I've got my two 80GB hard drives finally mounted and running in the A4000D in 4 SFS partitions (2 x 40GB and 2 x 34.5GB).  The Deneb is working fine along with the Cybervision 643D.

Now I just need to sort out this USB ethernet adapter which mounts, but I can't find it with Genesis...
Title: Re: How many drives in A4000D?
Post by: doctorq on August 03, 2008, 01:00:54 PM
Quote

Darrin wrote:
Doh!  OK, forget EVERYTHING I said!  Jesus, I'm going senile!!!  I was describing the preferences for my Power Flyer Gold in my A1200T!!!

Sorry!!!  I'm an idiot!  OK, who has got a hat that they want me to eat.


I have one for you :-) Glad we got that sorted out.