Looking for anyone who has a Zulu SCSI and Quadra 700

[rabbitholecomputing]

@rabbitholecomputing Sorry for the delay on this, I just got back from a long business trip and things have been quite busy since I returned. I just wanted to say thank you publicly for taking the time to dig into this issue I really was starting to become very frustrated.

I was able to load the 1.06FW just this morning and it immediately booted fully from a random 7.1 image that I had on there from my numerous previous attempts. I then swapped to some images I received from @jasa1063 in a previous attempt to get things working. He had provided me with two images one 7.1 and one 8.1 both 2GB files with full system installs on them. Both files loaded right up and fully booted using this new FW. I didn't have time to play around with it much beyond that as far as system stability goes, but I will say this is incredibly promising, previously this did not work at all. I still am not using an .ini file the result I'm seeing here is simply with the FW upgrade.

Thank you for the feedback. We appreciate it. I wish it hadn't taken as long as it did to resolve, but we found a few other small issues along the way, and ended up with better debug output as a result, so it wasn't all bad in the end.

Anyhow just wanted to say once again a huge thanks for continuing to work toward the resolution on this even when it seemed I'm sure from your side it looked like user error. I'll report back if there are any issues with stability in running through the proper channels.

Thanks again!

 

[dramirez]

@macuserman by any chance are you still expericing issues with your ZuluSCSI and you Quadra700?
I'm using an external ZuluSCSI Mini V1.0 with my Quadra and sometimes I am experiencing random lockups and freezes, no SCSI bootup device found at startup, weird issues...

 

[eharmon]

@macuserman by any chance are you still expericing issues with your ZuluSCSI and you Quadra700?
I'm using an external ZuluSCSI Mini V1.0 with my Quadra and sometimes I am experiencing random lockups and freezes, no SCSI bootup device found at startup, weird issues...

I've been having similar and we've been looking at maybe-related issues in the SillyTinySCSI thread: https://68kmla.org/bb/index.php?threads/sillytinyscsi-smallest-scsi-emulator-zuluscsi-oshw.45830/

 

[dramirez]

For the SillyTinySCSI I undestand you have to cut and solder to resolve a very specific issue on Quadras, but mine is a ZuluSCSI Mini, it was working fine, and after upgrading the firmware random lockups started to happen. I noticed a ton on DGB messages in the logfile, opened an issue and I for a link for a new firmware which doesn't dump those DBG messages and haven't experienced a problem since then. The fix will be included in the next release.

 

[macuserman]

I have to admit I haven't used the Zulu in the Quadra for long sessions, but I have used it a fair bit and have not been experiencing issues with my general use although I haven't sat down and used a bunch of software on it. I mostly do a lot of testing of various hardware so lots of changing things around and rebooting etc. But yeah it's been pretty solid for me I'm using pretty old firmware at this point though. I will have to do some longer tests to see if I have any other issue.

 

[eharmon]

For the SillyTinySCSI I undestand you have to cut and solder to resolve a very specific issue on Quadras, but mine is a ZuluSCSI Mini, it was working fine, and after upgrading the firmware random lockups started to happen. I noticed a ton on DGB messages in the logfile, opened an issue and I for a link for a new firmware which doesn't dump those DBG messages and haven't experienced a problem since then. The fix will be included in the next release.

Link to GitHub issue?

 

[dramirez]

Thousands of DBG messages in zululog.txt, even with Debug = 0 · Issue #385 · ZuluSCSI/ZuluSCSI-firmware

Platform: ZuluSCSI mini v1.0 FW Version: 23.12.13-release Dec 13 2023 00:33:48 FW Version: 24.02.06-release Feb 6 2024 00:24:41 At least since 23.12.13 I noticed thousand of DBG messages in the log...

github.com

 

[Realitystorm]

For the Quadra 700 issue, have you seen the TechNote?
Technical Note HW540 SCSI Port Q&As: Macintosh Quadra 700 and 900 SCSI chip anomaly and fix

A problem has recently been found with the SCSI chip on the Macintosh Quadra 700 and 900. In a nutshell, the National 53c96 chips that are used in the these models do something that the SCSI Manager doesn't expect (they sometimes hold onto a byte in the chip's on-board FIFO). Because of this, in certain cases, instead of the SCSI Manager retrieving the Status and Message bytes from the drive it just posted a command to, it gets the stuck byte as the Status byte, and the Message byte as the Status byte.