Re: VAXstation 4000/90 SCSI weirdness on 10 RC5

I have two disks on my machine, but one have NetBSD and the other have 
VMS on it, so I'm only running with activity on one of the disks.
And then I'm using NFS.
But I'm certainly been stressing the machine a lot with both lots of 
disk activity as well as running full builds.

Do I understand that your system works fine if you only have one disk, 
but you get into trouble when you have two?

As for recovering - well. It's not like the system can just throw the 
disk reads/writes away if you have a timeout. It's going to keep trying 
at it. The only other option is to just crash.

   Johnny

On 2024-03-23 13:23, Hans Rosenfeld wrote:
> On Sat, Mar 23, 2024 at 01:16:15PM +0100, Johnny Billquist wrote:
>> Which could be because a stalling disk maybe. I still suspect your disks...
>> :-)
> 
> Even if all three disks have issues, I'd kinda expect the SCSI framework
> to correctly time-out commands and free any associated buffers...
> 
>> Do you have any other disk you could try with. Also, do you have proper
>> termination on the SCSI bus and so on?
> 
> It is of course possible it's the disks, and that all three of them have
> the same issue, whatever it is.
> 
> Of course the bus is properly terminated, and the system runs perfectly
> with just its system disk. It's been running like this 24/7 since
> November, compiling -10 over and over again. And when a 2nd disk is
> added, it's able to copy 10GB of data successfully before the problems
> start....
> 
> I have bunch of spare SCSI drives in storage, but would have to look
> specifically for something >9GB to be able to test this.
> 
> Since you mentioned you installed a 4k90 recently, did you by chance do
> any extensive testing with more than one SCSI disk?
> 
> 
> Hans
> 
> 

-- 
Johnny Billquist                  || "I'm on a bus
                                   ||  on a psychedelic trip
email: [email protected]             ||  Reading murder books
pdp is alive!                     ||  tryin' to stay hip" - B. Idol