Amiga.org

Amiga computer related discussion => Amiga Hardware Issues and discussion => Topic started by: QuikSanz on April 30, 2021, 11:18:01 PM

Title: SCSI2SD
Post by: QuikSanz on April 30, 2021, 11:18:01 PM

Good Day,

I'm  thinking of replacing all of my HD's, The CS3, easy, would get a V6. A2000 W/GVP GForce combo
Is another thing. Amiga resource says transfer rate 1.2MB/s. Other impact controllers are close to 3 times this? Sync or async that is another question, V5.2 is async only.

What's your opinion?

Chris

Title: Re: SCSI2SD
Post by: Matt_H on May 01, 2021, 02:06:21 AM

I swapped my hard drive on a CSmk3 for a v5 SCSI2SD. Definitely slower than a real drive at ~1.2MB/s, but for getting that ancient, spinning, and HOT drive out of the tight case it was definitely worth it. v6 wasn’t available at the time so I’d be interested to hear your results with it.

Also using v5s on an A3000 and GVP A530, both working well. Maximum performance of those controllers is closer to the v5’s maximum so the speed penalty isn’t as noticeable. If I had to describe the overall feeling of speed I’d call it “not super fast” rather than “slow.” It’s a familiar speed - there’s plenty of precedent in the history of Amiga hard drive controllers and drives.

Wish it was possible to configure some aspects (like termination) with jumpers rather than having to connect to my Mac over USB, but overall I’ve found them to be very robust. I’ve had no issues after configuring them.

Title: Re: SCSI2SD
Post by: kolla on May 02, 2021, 11:03:38 PM

How about this?

https://www.ebay.com/itm/254199399561

and then just a cheap IDE-SD adapter…

EDIT: never mind, I see it is “DVD only”.

Title: Re: SCSI2SD
Post by: Pat the Cat on May 03, 2021, 01:25:27 AM

Apparently you can change the ROM on it to support HDDs. Not an easy job, it's PLCC and unsocketed.

There are some "industrial" alternatives but they make hacking Acard stuff look like a bargain. Let me know if you want links.,

Rascsi looks interesting. Maybe a touch faster than a V5 and cheaper too. You kind of have to order though the Github, lot easier if you are based in North America.

Title: Re: SCSI2SD
Post by: QuikSanz on May 03, 2021, 01:37:19 AM

The question if someone can confirm this.as what one to use. Is the G-Force 030 fast enough to use a V6. Amiga Resource says only 1.2 MBs, sounds slow since other GVP  units are much faster. I can't test

Chris

Title: Re: SCSI2SD
Post by: QuikSanz on May 03, 2021, 01:38:29 AM

Wrong Thread.................... Pat

Title: Re: SCSI2SD
Post by: Pat the Cat on May 03, 2021, 01:48:02 AM

Well, Matt H did wonder about other options for the Cyberstorm 3, which is peculiarly fast as far as I know.

Quote from: QuikSanz on May 03, 2021, 01:37:19 AM

The question if someone can confirm this.as what one to use. Is the G-Force 030 fast enough to use a V6. Amiga Resource says only 1.2 MBs, sounds slow since other GVP  units are much faster. I can't test

Chris

GVP Combos are known for having slower scsi access compared to their scsi HD + Zorro 2 RAM expansions.

No, the Combo will throttle a V6, you won't get 2MB second out of it.