Resolved SCSI2SD

[velocityg4]

Anyone use these? Specifically I'm looking at the SCSI2SD v5.5 Pocket Edition. Since it is considerably cheaper. Plus, being external, it makes it easy to move between computers.

Although if someone knows reasonably priced internal units. I'd be interested.

My main concern is reliability. Also if they work with System 6 and 7.

I bought a lot of IIcx a while back. I'm interested in testing them and repairing them if necessary. Just sort of a side project. They came with a bunch of random RAM and a few NuBus cards.

I just have no SCSI drives. I'd rather use something new than some 20 to 30 year old drives. Especially with how expensive working ones are.

 

[Anonymous Freak]

They work great with old systems, they are very reliable. They're just slow. Yes, even slower than later spinning SCSI drives. Yes, slower than the 5 MB/s SCSI bus early Macs used. I use one between a bunch of my old Macs, including a Macintosh Plus.

 

[velocityg4]

Good to know. I already ordered one for testing. Just waiting on new PRAM batteries and RAM.

I read the latest V6 models support synchronous transfer and are supposed to be faster. May get one if I can get them working. RaSCSI also looks interesting.

How are the speeds on CF SCSI adapters? If you've used them.

 

[velocityg4]

I've got the SCSI2SD but I can't get the dang thing working. The SCSI2SD Utility detects the drive and I tried the default profile, my own custom profile and a premade profile I found online for using these with a Mac. Nothing changes the results.

The SD Card is not detected when connected by USB in Windows 10 or macOS X Catalina. It should show up as a device when running diskpart then list disk in Windows or diskutil.

I figured I'd check with my IIcx with it connected to SCSI. Even though I set the SCSI2SD to act as a few SCSI devices. None show up in Apple HD SC. All I can see is my regular HDD.

I've removed the SD card. It works fine in an SD card reader and is new (Samsung Evo micro SD card 32GB). I've tried switching it from MBR to Apple Partition Map. But that did bupkis. Also tried a different USB cable. I don't have any other Micro SD cards to try.

I'm out of ideas to get this working and the online documentation is sparse.

 

[velocityg4]

I finally figured it out. What wasn't clear in the instructions for writing to the SD Card from a modern computer. You can't use the SCSI2SD for this. You must remove the SD card from the SCSI2SD adapter and insert it into an SD Card adapter for writing. In no way does the USB connection to the adapter communicate with the card. It's purpose in life is setting up the adapter.

Anyways there is another minor issue. I can't just use the SCSI2SD by itself externally. Am I supposed to terminate the internal connector when no drive is attached?