The RaSCSI is MAGIC for Old Macs (and Much More!)
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- Опубліковано 30 лип 2021
- Today we're checking out the RaSCSI, a device that connects to a Raspberry Pi, and lets it communicate directly with the SCSI bus on your vintage Mac (and other machines too!)
Using the RaSCSI software, you can emulate drives, networking adapters, and even cool stuff like video cards are possible (in the future). There's amazing functionality in the web interface, including absolute magic like download a file from the internet, and mount it inside an HFS cd rom image on the fly! Getting files from the web onto a vintage Mac was never easier.
We also have the BEAUTIFUL PotatoFi case, an Apple-esque Snow White design language case for the RaSCSI and Raspberry Pi together.
Let's put this stuff together, and see just what it can do!
I've got a TON of links for you today!
🍎 @Mac84 did a GREAT vid on the RaSCSI as well, including Ethernet emulation! • RaSCSI - The Ultimate ...
🍎 RaSCSI (Mac version) on Tindie: www.tindie.com/products/lando...
🍎 RaSCSI on Github: github.com/akuker/RASCSI
🍎 RaSCSI Wiki: github.com/akuker/RASCSI/wiki
🍎 PotatoFi RaSCSI slim case (for Pi Zero W): www.etsy.com/listing/10366442...
🍎 3D print your own PotatoFI RaSCSI case: www.prusaprinters.org/prints/...
🍎 VintageApple "Mac Drivers Museum": vintageapple.org/macdrivers/
🍎 Thread on Anandtech from 2000 (lol): forums.anandtech.com/threads/...
🍎 Article dispelling some SCSI myths: milosoftware.com/mike/scsi_ide...
🍎 Set up your Raspberry Pi headlessly: www.raspberrypi.org/documenta...
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#Macintosh #RaSCSI #raspberrypi
![Best Option for Apple ][ Modern Networking?](http://i.ytimg.com/vi/mKAOOH_xjwU/mqdefault.jpg)
People call hard drives "spinning rust" because... that's exactly what they are. Iron oxide on a metal disc that spins round and round! I noticed Apple sure likes technologies that allow you to daisy-chain devices. SCSI, FireWire, Thunderbolt - all support daisy-chaining.
SCSI strong points that mattered at the time: - Devices you could daisy chain internally and externally. - The original IDE spec at the time maxed out at 512Mb (Until eIDE), SCSI had no real limit - SCSI was expensive due to it having very high quality standards that dictated good hardware and signaling. IDE had very loose specs comparatively.
One of the strong points of SCSI is that it didn't really care how big the drive was, maximum partition size was down to the OS.
And the Oscar for single hand choreography goes to... Action Retro!
Sorry you had a few issues on the web interface! I've pushed a fix to the develop branch that allows for better file uploads. As for the cd I'll have to try to reproduce that, haven't seen it fail before but shoud work with any file. Maybe a weird url or filename? Great review!
“Modern Apple is allergic to
I love it when new hardware is made for old products.
I have a 5.25" Full Height SCSI hard drive from my Commodore Amiga days. It still works. It sounds like a garbage truck traveling down a gravel road though. SCSI was MUCH faster on my 7mhz 68000 equipped Amiga 500. It's really noticeable on low end equipment. On modern equipment of course, the processing power is so high that it doesn't matter.
Not many realise that SCSI was a development of SASI (Shugart Associates System Interface), which appeared 5 years earlier. Some SASI devices could work with SCSI-1 controllers; they used the same 50-pin connectors.
The vintage sampler community has been actively working on these for several months now, too. The original project started several years ago in Japan but didn't gain much traction because the only suppliers of the boards were in Japan and the docs were all in Japanese.
This looks
SCSI predates IDE/ATA by many years. PC's started with MFM drives. MFM was a much cruder and lower level protocol that left a lot of the control to the host - data was referenced by cylinder, head & sector, and the host had to be aware of the physical geometry of the drive. Get this wrong (eg, if your CMOS battery went flat) and you lose your data. SCSI was a high level protocol, with the drive appearing simply as an array of linear blocks. The protocol also allowed for devices other than storage - for example, it was common to attach high performance scanners and printers via SCSI.
Fantastic video! Thanks a bunch for the review of my cases! A ton of people have ordered cases this morning - I love printing things and shipping them out to other Macintosh enthusiasts!
SCSI definitely has one other advantage in that it poses minimal load on the host CPU to access a drive. I remember some years ago there was someone on the VOGONS forum playing around with a PCI chipset 486 system they had. With a dedicated DVD decoder card, a PCI SCSI HBA, and a SCSI DVD drive, they were able to get a 486 DX2-66 to playback a DVD in Windows 95 while at only 3% CPU usage. Using an IDE DVD Drive, it was more like 30%.
Raspberry Pi seemed like a toy in the beginning, but now with every single new iteration I feel like it has more and more potential.
Using SCSI in pro/consumer products before the arrival of SATA was a good move, it made those systems so slightly snappier.
the way I rationalized this to feel better about it - it's just a SCSI-attached file server (instead of being a NAS)
Wow, I am blown away by the interest in RaSCSI cases! I'm running out of stock of pretty much everything... so if something is missing from my store, check back in a few days! I'll keep the printers running around the clock to try to get caught up!
I use castoff scsi3 disks from servers with an adapter board. Theyre reliable and really fast, and astonishingly cheap. 10$ for the adapter and less than 10$ for the drives. I have a 160gb one in my Powecenter Pro
Between the SCSI and ADB there was still a lot of expandability potential for slotless models. It's true you had to fiddle but back in the day but the owners knew the "SCSI rules" by heart.