Scsi to cf adapter

[mechy]

Has anyone tried these on their Amiga?
It seems to be a acard style arc chip like the acard aec-7720U or similar scsi to ide bridge uses.
since CF is basically a ide bus, it seems logical.

http://www.ebay.com/itm/50-pin-SCSI-to-CF-Card-Adapter-SCSI-Solid-State-Disk-Ships-from-the-U-S-A-/302234555679

Is there a project page floating around somewhere for these?

[amyren]

Wouldnt scsi to microsd be a better choice?
- Its well tested to work on amigas (read the reviews from the link below).
- microSD cards are usually much cheaper than CF cards
- The scsi2SD adapter is a bit cheaper than that scsi2CF adapter.

http://amigakit.leamancomputing.com/catalog/product_info.php?products_id=1264

[mechy]

Wouldnt scsi to microsd be a better choice?
- Its well tested to work on amigas (read the reviews from the link below).
- microSD cards are usually much cheaper than CF cards
- The scsi2SD adapter is a bit cheaper than that scsi2CF adapter.

http://amigakit.leamancomputing.com/catalog/product_info.php?products_id=1264

SD is serial protocol needing more chips for translation,while CF is basically ide and direct straight wired . since this is a scsi to ide bridge it will be fast, prob. nearing 10MB/s  depending on the ssi controller, unlike sd solutions which are very slow.

seems to be this guy doing them:

http://zahermusic.com/store/products.php?product=50%252dpin-SCSI-to-CF-Card-Adapter-SCSI-Solid-State-Disk

[Oldsmobile_Mike]

Wouldnt scsi to microsd be a better choice?

No.  :lol:

[Matt_H]

No.  :lol:

Hey, I'm just glad we have some options on the market now!

[LoadWB]

Hey, I'm just glad we have some options on the market now!

This is true.  I will say you might be pleasantly surprised if you give the SCSI2SD a try.  I have several and for old narrow devices they work quite well... including me ol' Miggy.

[mechy]

This is true.  I will say you might be pleasantly surprised if you give the SCSI2SD a try.  I have several and for old narrow devices they work quite well... including me ol' Miggy.

i use the PCD50 and 60 scis card readers.

[gertsy]

This is true.  I will say you might be pleasantly surprised if you give the SCSI2SD a try.  I have several and for old narrow devices they work quite well... including me ol' Miggy.

They are nice. But slow. I have a CF Monster in my A500/A590 and it is twice as fast as the SCSI2SD. (bought 6 months ago) The SD handles greater capacity, but the Monster is faster.  I am guessing these ones are akin to the monster. But how much capacity you can carve out is a question.

[Matt_H]

Is the CF Monster the same as the Aztec Monster, or is it another product from the same developer? I got an Aztec Monster to put in my 4000T, but the thing is incredibly unstable and effectively useless. Planning on replacing it with a SCSI2SD, but if there are faster (stable!) options available I might go for one of those instead.

[kirk_m]

Has anyone bought one of these yet and tried it out?

I have the SCSI2SD (both 6 and 5) and they're OK, but, the fastest I can get out of them is 1.8mb/sec, even on my Blizzard 2060's SCSI controller.

[Bigbronc]

I have one and wish I had another, it works great. I plugged it in to the GVP 68040 card scsi to cf and bingo. I had already built the cf card on a scsi to IDE converter card I have. Every thing works,I don,t have a tool to measure transfer rates.

[kirk_m]

I have one and wish I had another, it works great. I plugged it in to the GVP 68040 card scsi to cf and bingo. I had already built the cf card on a scsi to IDE converter card I have. Every thing works,I don,t have a tool to measure transfer rates.

Sysinfo has a rough estimate for speed, if you have that installed, in the drives section.

[gertsy]

Is the CF Monster the same as the Aztec Monster, or is it another product from the same developer? I got an Aztec Monster to put in my 4000T, but the thing is incredibly unstable and effectively useless. Planning on replacing it with a SCSI2SD, but if there are faster (stable!) options available I might go for one of those instead.

Yes, it is the Aztec Monster. Sorry. Mine works flawlessly (now) on an A500/A590 but I did have a heap of trouble and could not get it to work with CF Cards over 2GB. Even when configured and set up on my 1200. I found additional partitions above 2GB were being clobbered. Regardless of number.  After lots of logical troubleshooting I got it stable with one 2.1gb partition. I hasn't failed me since then. I got in contact with the Japanese supplier. Who was generally good BTW. He was sure it wasn't the card. But I didn't have this issue with the previous SCSI CF module.

[gertsy]

Has anyone bought one of these yet and tried it out?

I have the SCSI2SD (both 6 and 5) and they're OK, but, the fastest I can get out of them is 1.8mb/sec, even on my Blizzard 2060's SCSI controller.

Yep same here. On a lowly A590. Tells you where the bottleneck is.

[thebajaguy]

Has anyone bought one of these yet and tried it out?

I have the SCSI2SD (both 6 and 5) and they're OK, but, the fastest I can get out of them is 1.8mb/sec, even on my Blizzard 2060's SCSI controller.

The v5 is probably doing the best it can.  Same with any SCSI controller that only supports the Async SCSI spec, which (theoretically) tops at 2.5MB/sec.

The v6 supports sync, and needs a few things:
- The SCSI2SD, if the setup tool gives you you the option, must allow for Sync
- The boot block needs to have the Sync flag set on the partition(s) you define on the Amiga.  Typically it will be unset, meaning Async bus communications (speeds) by default.
- Check your Blizzard SCSI docs to see if there is anything else that needs to be set to allow for Sync SCSI.
- Double check your SCSI termination is correct.  That's termination at both physical ends, and never in the middle.  If it's off, you risk errors when it tries to transfer data.

Also, make sure you have the latest v6 firmware.  It's still looks like a work in progress, but I saw ~2.7MB/sec on GVP Series II stock 68K machine on an A500 with GuruROM (omniscsi.device), vs 2.2MB/sec with both v5 and v6 in Async mode (and same Async speeds with FastROM v3/v4).