Open ltning opened 4 months ago
ltning
commented
4 months ago My zuluscsi.ini:
[SCSI]
Debug = 1
DebugIgnoreBusyFree = 0
#EnableUnitAttention = 1
EnableSCSI2 = 1
[SCSI1]
SectorsPerTrack = 63
HeadsPerCylinder = 16
[SCSI2]
SectorsPerTrack = 63
HeadsPerCylinder = 16
[SCSI3]
SectorsPerTrack = 63
HeadsPerCylinder = 16
[SCSI4]
SectorsPerTrack = 63
HeadsPerCylinder = 16
aperezbios
commented
3 months ago @ltning thanks for the report. The first thing I recommend you try is to limit throughput to 5MB/sec synchronous, to see if this issue only manifests itself in 10MB/sec synchronous SCSI mode. Please try this by setting MaxSyncSpeed=5 in the global section of your zuluscsi.ini file. If this still results in watchdog timeouts, you can also try setting MaxSyncSpeed=0, which will disable synchronous SCSI entirely. If this works, it will help in narrowing down where in the code path things may be going off the rail.
One thing we need to establish is whether or not there are any other SCSI devices on the bus. Are there, or is the ZuluSCSI the only device on the bus? Also, if you haven't tested with a single SCSI device on the bus, please do so.
When referring to firmware, please specify exact version numbers. We have no way of knowing exactly which firmware versions you've tried with, and often, customers tell us they're running "the latest" without specifying what that version is, and it ends up they're not actually running the latest release. By providing a non-truncated log file, you answer that question without us needing to explicitly ask for it.
It's also critical that you're using an SD card that's at least class 10. Can you please provide a full log file?
Thanks!
ltning
commented
3 months ago Hi,
the full log was included. See the end of my initial message. Firmware is 2024.07.16.
The ZuluSCSI is the only device, and it has five disk images plus a CD image.
I've capped the sync speed to 8MB/s for all the SCSI targets in the controller BIOS; I have not yet seen the issue re-surface. I don't have a fully reliable reproduction scenario, but booting up the machine (it runs OS/2 with Novell NetWare) often causes this to happen during NetWare startup since it exercises the SCSI bus somewhat.
I will of course provide another log file if and when it happens again.
Are there any other useful steps I can take?
/Eirik
aperezbios
commented
3 months ago @ltning apologies for missing it. Thanks for the additional information. Can you confirm that you do not have MaxSyncSpeed set in your ZuluSCSI.ini file?
ltning
commented
3 months ago Correct. At the moment, the controller is configured to negotiate sync at max 8MB/s (as opposed to 10MB/s when the timeouts occurred), and it has not yet encountered the problem. Based on my significant but very dusty (25 years since I dealt with it on a daily basis) experience with SCSI, I suspect it does not matter whether it's the controller or the device that enforces this?
ltning
commented
3 months ago Also, the SD card is a SanDisk High Endurance card. Should be okay for the task at hand..?
Hi, I have a zuluscsi 1.1 connected to an Adaptec AIC7770 (AHA-2740 EISA). Using both 50pin and 68pin cables (with adapter in the latter case), I'm seeing sporadic SCSI bus hangs during I/O. OS is OS/2 Warp, with what I can determine as the latest driver for this card. It's known to be a solid and stable workhorse for OS/2 servers.
This is seen with both very old firmware and current firmware.
Snippet from debug log below; full log file attached (it contains data from several power cycles).
I have no idea where to look; tried two controllers (same), both controllers are NOS and shipped with the last firmware Adaptec produced.
Any ideas? Can this be a firmware issue? What should I try?
PS: With the 68pin cable, which is equipped with a terminator at the end of the cable, I've only tested with termination enabled on the ZuluSCSI. It has occurred to me this might not be optimal - then again, having seen this issue also with a regular (and short!) 50-pin cable, I think it might not be relevant?
Log excerpt:
zululog.txt