SCSI2SD adapter

[doctorq]

I have two of these adapters and they work well, but they aren't really fast. Around 2 MB/sec when being used on a CSPPC, but a great replacement for hdds in my GVP HD8+, A590 and CDTV. Have used 1, 2 and 8 GB cards.

[broken]

I have two of these adapters and they work well, but they aren't really fast. Around 2 MB/sec when being used on a CSPPC, but a great replacement for hdds in my GVP HD8+, A590 and CDTV. Have used 1, 2 and 8 GB cards.

This has been my experience too. Works well, just not mad quick.

I use one in my x68000 XVI.

[Matt_H]

Hmm. Those speeds sound adequate. What sort of SD cards are you using? As I'm shopping for cards I'm noticing most of the smaller capacity cards are Class 4 rather than Class 10. Wondering if a faster card would make a difference or if the bottleneck is the device itself.

[Oldsmobile_Mike]

I have two of these adapters and they work well, but they aren't really fast. Around 2 MB/sec when being used on a CSPPC, but a great replacement for hdds in my GVP HD8+, A590 and CDTV. Have used 1, 2 and 8 GB cards.

Are you saying it's 2MB/sec with CSPPC, and a comparatively lower speed with that other hardware?  Or is it also 2MB/sec with A590/CDTV/etc.?

[doctorq]

I have used both a 2 GB card and a 8 GB class 4 card. Both cards reach 1.75 MB/sec on a CSPPC and 1.35 MB/sec on a A590 controller.

I think the adaptor is the bottleneck, but I hope someone proves me wrong.

[ravepants]

@doctorq,

Can you tell me what settings you have the SCSI2SD set for to run on the CDTV please?

I have tried it with a pre-installed CWB 68k 1GB microsd and it won't boot from it, but it will on my GVP030 in the A2000!

I'm running firmware 4.5 on the adapter.

Thank you

[Motormouth]

For my money I still stand by the "Mechware" SCSI card readers, but scalpers have those all hoarded up now, you've gotta pay around $200 for one, these days.  

Yes,  I have the "Mechware" SCSI card reader.  It works quite well especially if you have a SCSI controller that can handle LUNS.

Otherwise you are stuck with only the LUN 0 of device or the PCMCIA card reader.  Though CF to PCMCIA adapter are fairly easy to come by....

[mechy]

Does anyone have experience trying to use one of these in an A2000?

No experience, but you can read about them here. they are not the fastest thing but better than nothing. write speeds are really slow:

http://www.codesrc.com/mediawiki/index.php?title=SCSI2SD


From that page:



Performance  EDIT: that didnt clip and display right, check the page!

 As currently implemented:
   Transfer Size (bytes):  512  2048  8192  65536   Read  2MB/s  2.1MB/s  2.5MB/s  2.6MB/s   Write  125kB/s  441kB/s  1.5MB/s  2.3MB/s

[Macabre]

I know, its an old thread ... but it's the same subject ...

I think 2 mb/s is "fast" in a A590. My Quantum SCSI i use in an A590 is faster, but i only get just about 1 mb/s on a stock a500..

Hopefully i get mu scsi2sd adapter this week to replace the "airplain" in my a590.
But just wondering if  can prep an SD card and use WINUAE to install/backup everything..

On my A1200 en A4000 this works great, and also for making a hardfile as backup. Its simply a lot faster .

[Macabre]

Today i got mine SCSI2SD adapter and installed it in my A590.

I first tried my smallest micro-sd of 2gb. It seem to work, but gave me block errors when i tried to copy my WHDLoad games to the card from my a4000 by a cardreader.
Same on the pc with winuae.

So i tried a 16gb card. My a590 says its only 2gb (it did recognize my quantum 4.2 gb correctly so must me the adapter). But its enough.

this time i could put my files on the prepped card (prepped on the A500/A590) But only the first partition. The second partition is seen as unformatted in WINUAE and on my A4000 (cardreader).

But i managed to restore my boot partition to the card and copied most games already. I created 2 partitions of 1 gb each. Thats more then enough for this machine.

Oh, and the speed is about 800kb/s. Thats about 200kb/s slower then with my scsi drive. But you dont notice this when working on a stock a500 with only 3 mb of memory.

[matt3k]

Got it running on a warp engine.  Can't get PFS working, so using FFS at the moment.  Using the SCSI2 speedup also.

Works fine...

[WeiXing3D]

I'm using it in an Amiga 3000 with a 16GB microSD as my main HDD, replacing one of 3 old SCSI HDDs.

I am now configuring a second one to be used in my external SCSI device or side card, where my CD ROM unit is.

I bought 2 SCSI2SD in case I fried one since I am not a hardware type of guy. :laughing:

Today i got mine SCSI2SD adapter and installed it in my A590.

I first tried my smallest micro-sd of 2gb. It seem to work, but gave me block errors when i tried to copy my WHDLoad games to the card from my a4000 by a cardreader.
Same on the pc with winuae.

So i tried a 16gb card. My a590 says its only 2gb (it did recognize my quantum 4.2 gb correctly so must me the adapter). But its enough.

this time i could put my files on the prepped card (prepped on the A500/A590) But only the first partition. The second partition is seen as unformatted in WINUAE and on my A4000 (cardreader).

But i managed to restore my boot partition to the card and copied most games already. I created 2 partitions of 1 gb each. Thats more then enough for this machine.

Oh, and the speed is about 800kb/s. Thats about 200kb/s slower then with my scsi drive. But you dont notice this when working on a stock a500 with only 3 mb of memory.