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Amiga computer related discussion => Amiga Hardware Issues and discussion => Topic started by: Iggy on April 26, 2015, 02:46:29 AM

Title: SCSI upgrade/connection
Post by: Iggy on April 26, 2015, 02:46:29 AM
If I wanted to upgrade upgrade an A2000 with an SCSI drive controller, which drive adapter would make more sense, SCSI-1>IDE or SCSI-1>
U320/160?
Title: Re: SCSI upgrade/connection
Post by: Oldsmobile_Mike on April 26, 2015, 02:49:19 AM
Quote from: Iggy;788419
If I wanted to upgrade upgrade an A2000 with an SCSI drive controller, which drive adapter would make more sense, SCSI-1>IDE or SCSI-1>
U320/160?

Why not post a poll?  :roflmao:
Title: Re: SCSI upgrade/connection
Post by: Iggy on April 26, 2015, 02:57:46 AM
Quote from: Oldsmobile_Mike;788421
Why not post a poll?  :roflmao:

Because I'm not interested in people's interest in pancakes.
Its just that using later SCSI drives seems less expensive than the $100 IDE adapter I have been considering.
With an '020 processor card I can't really considering the simpler IDE solutions.
Title: Re: SCSI upgrade/connection
Post by: Oldsmobile_Mike on April 26, 2015, 03:05:19 AM
Well, if you're just looking for opinions, I'd go with SCSI.  Think the majority of folks use IDE solutions because the drives are cheap.  But meh.  I just don't like 'em.  To each their own.  ;)
Title: Re: SCSI upgrade/connection
Post by: Matt_H on April 26, 2015, 03:16:18 AM
What criteria are you considering? Cost? I have yet to make the investment in a SCSI to IDE adapter myself, but I think that's probably the way to go. SCSI3 drives are getting on in age now and they're loud, power hungry, and hot. But they're fairly cheap and I think there is a certain level of pride in being a SCSI user :)

An IDE or SATA adapter opens the door to easily-swappable CF cards. Downside is price, and you need one for every device, whereas with a SCSI adapter you can convert your whole chain and use multiple devices hanging off the one adapter.
Title: Re: SCSI upgrade/connection
Post by: danbeaver on April 26, 2015, 05:04:21 AM
Why not go SCSI2SD? (http://shop.codesrc.com/) At $65 to $73 USD it is a cost effective option.

Back to the question, both an IDE and an SCSI3 drive will saturate the SCSI-2 bus, but the is a conversion "hit" going from SCSI to IDE that cuts the transfer rate.
Title: Re: SCSI upgrade/connection
Post by: Matt_H on April 26, 2015, 02:29:06 PM
Quote from: danbeaver;788441
Why not go SCSI2SD? (http://shop.codesrc.com/) At $65 to $73 USD it is a cost effective option.


I'd forgotten about that option! He's out of stock at the moment, but I think I'll be ordering one or two of those when he's resupplied.

Quote
Back to the question, both an IDE and an SCSI3 drive will saturate the SCSI-2 bus, but the is a conversion "hit" going from SCSI to IDE that cuts the transfer rate.


Given the age of the SCSI controller itself I imagine the performance hit wouldn't be that noticeable - the whole bus is already comparatively slow :)
Title: Re: SCSI upgrade/connection
Post by: Iggy on April 26, 2015, 06:29:18 PM
SCSI2SD?

I like that solution. Thanks.